Marin – Drainage

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P.O. Box 150208
San Rafael, CA 94915
(415) 459-2130

Serving Marin County including San Anselmo, Larkspur, San Rafael, Mill Valley, Novato, Corte Madera, Ross, Fairfax, Tiburon and Sausalito.

Services include residential, multi-residential, commercial, light industrial, drainage, retaining walls, foundations, structural repairs and waterproofing. Brands include Cemex and Curecrete...
License 327365 | DCID4154592130
Map of these Diamond Certified companies
Cities: Belvedere, Corte Madera, Fairfax, Larkspur, Mill Valley, Novato, Ross, Sausalito, San Anselmo, San Rafael, Tiburon
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Researched Articles
Why Trust Diamond Certified Drainage Companies Rated Highest in Quality?

You are the customer. If your goal is to choose a drainage company that will deliver high customer satisfaction and quality, you’ll feel confident in choosing a Diamond Certified drainage contractor. Each has been rated Highest in Quality in the most accurate ratings process anywhere. And you’re always backed by the Diamond Certified Performance Guarantee. Here’s why the Diamond Certified ratings and certification process will help you find a top-rated drainage company and is unparalleled in its accuracy, rigor and usefulness:

1) Accuracy: All research is performed by live telephone interviews that verify only real customers are surveyed, so you'll never be fooled by fake reviews.

2) Statistical Reliability: A large random sample of past customers is surveyed on an ongoing basis so the research results you see truly reflect a Diamond Certified company’s top-rated status.

3) Full Disclosure: By clicking the name of a company above you'll see the exact rating results in charts and read verbatim survey responses as well as researched articles on each qualified company.

4) Guaranteed: Your purchase is backed up with mediation and the Diamond Certified Performance Guarantee, so you can choose with confidence.

Click on the name of a Diamond Certified company above to read ratings results, researched articles and verbatim customer survey responses to help you make an informed decision.

More than 200,000 customers of local companies have been interviewed in live telephone calls, and only companies that score Highest in Quality in customer satisfaction–a 90+ on a 100 scale–as well as pass all of the credential-based ratings earn Diamond Certified. By requiring such a high score to qualify, the Diamond Certified program eliminates mediocre and poorly performing companies. Read detailed information about the ratings and certification process.

How to Choose
How to Find a Marin County Drainage System Company You Can Trust

Maybe you have a swampy yard. Maybe you have a damp or wet basement, at least part of the time. Maybe you dread hearing the rain on the roof, picturing it finding its way, in even greater amounts, into some new--or old--trouble spot, wondering how much the damage will cost....

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Maybe you have a swampy yard. Maybe you have a damp or wet basement, at least part of the time. Maybe you dread hearing the rain on the roof, picturing it finding its way, in even greater amounts, into some new--or old--trouble spot, wondering how much the damage will cost.


You need a drainage professional. So you can sleep again on stormy nights.

Maybe you need a drain system, a French drain, a trench drain, a tile drain, a set of downspout diverter drain pipes, or a soakaway drain. But you're not quite sure what any of those things really is.  Or how much they will cost.

Maybe you're looking for surface draining and grading services, storm drainage system solutions, drainage system repair services, or foundation drainage system installation.

Where should you look for drain system services in Marin County, and how do you even get started? Will costs for drain system work differ enormously, and how will you determine which drainage system prices are reasonable? Will you be protected by water drainage warranties?

Those are good questions, and prove the need for good drain system information. You can ask around among people you trust, and do some research on your own regarding drain system contractors. Chances are you will discover that the right drainage system provider will be an effective and practical solution for your drain system needs.

You can find reliable facts on drain system companies in Marin County. You can know where the best drainage system providers are, see why they are the best, and read what randomly selected drain system customers say about them. You can choose water drainage work companies that can be trusted for honest, courteous, and reasonably priced service.

Finding the best drain system companies could seem difficult with all the water drainage service providers available in Marin County. How do you get to the right drain system companies, with consistent records for high quality drainage work and proof of satisfied customers?

Good drain system work is available in Marin County, and Diamond Certified drain system providers, with their high ratings in available random customer surveys, customer-friendly business practices, customer satisfaction principles, and solid guarantees, will be among your best drainage system options.

To find the Marin County drain system company that fits you the best, start out with high quality information about drainage system providers. Consider the following ideas for making a good Marin County drain system company choice in the major cities of San Rafael, Novato, Mill Valley, San Anselmo and Larkspur or in the smaller towns.

Look for Drainage System Companies in Marin County, Including Drain System Providers in the Cities of Sausalito, Corte Madera and Tiburon
Before you begin your drainage services search, remember that there can be big differences in drain system companies in Marin County.

You should know that all drain system contractors in California have to be licensed by the Contractor State Licensing Board. You can check on drainage system license status yourself at the Contractor State Licensing Board website, and perhaps discover any related problems for a given drain system company. But realize that this has already been done for you with Diamond Certified drain system companies. If you choose a Diamond Certified water drainage provider, you are several steps ahead, including the opportunity to read random drain system customer surveys. If you don't, you should really check the other drain system companies in Marin County carefully for yourself.

Drain system companies in the larger Marin County cities of Novato, San Anselmo, San Rafael, Mill Valley and Larkspur may provide better water drainage services, and may be able to save you more money on drainage system needs.

Find the Drainage System Companies or Drain System Providers You Need in These Major Marin County Cities: San Rafael, San Anselmo, Novato, Larkspur, Mill Valley, Corte Madera, Tiburon, Sausalito, Fairfax, Ross and Belvedere
Check a few drain system companies by phone in the larger cities of Mill Valley, Larkspur, San Rafael, Corte Madera, Novato and San Anselmo or in your area of Marin County.

Then go to some drain system companies in person. You'll want a good impression from the drainage system company. Do the facilities have the look of places from which high-quality drainage system services will be available? Do the drain system contractors have well-informed and polite staff?

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Know What You Want
Know What You Really Want and Need from Marin County Drainage Companies

Before you start looking for a water drainage provider in the cities of San Rafael, San Anselmo, Novato, Larkspur, Mill Valley, Corte Madera, Tiburon, Sausalito, Fairfax, Ross and Belvedere, or for a drain system company in Marin County, think about some specific drainage system questions you may have....

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Before you start looking for a water drainage provider in the cities of San Rafael, San Anselmo, Novato, Larkspur, Mill Valley, Corte Madera, Tiburon, Sausalito, Fairfax, Ross and Belvedere, or for a drain system company in Marin County, think about some specific drainage system questions you may have.


Get some thoughts down on paper. Maybe you are mostly concerned with the drain system cost, or the quality of the water drainage services. You may want someone to take extra time explaining drainage system options.

Being precise about your drain system needs will help you measure the responses of water drainage providers. Here are some sample questions about drainage systems:

  1. Do you want a Diamond Certified drain system company that is rated best in quality, has random customer survey results, and is backed by the Diamond Certified Guarantee?
  2. How long has the drain system company been in business?
  3. How does the drain system company set prices for a drain system or drain system repairs?
  4. Does the drain system provider have an outstanding reputation with Marin County drain service customers?
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What to Ask on the Phone
What to Ask Marin County Drainage System Representatives During Phone Conversations

Drain System companies in Marin County can answer these questions or similar ones about water drainage services:...

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Drain System companies in Marin County can answer these questions or similar ones about water drainage services:

  1. Are you a Diamond Certified drain system company?
  2. Does your drain system company specialize in or emphasize a particular type of water drainage service, such as surface drainage and grading, foundation drainage, storm drainage systems, or drainage system repairs?
  3. What is a typical drain system process like, and how long does it take?
  4. How do you set drain system costs at your company?
  5. Do you provide a written estimate of drainage system costs?
  6. How does the amount of time and cost increase for typical drain system problems that may become evident during water drainage work?
  7. What are your drainage system financing options?
  8. What warranties if any do you offer on drain system work?
  9. Have you been a drain system provider in Marin County for some time?
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What to Ask in Person
What to Ask Marin County Drainage System Representatives at the Location

You may decide to go in person to some drain system companies in San Rafael, Larkspur, San Anselmo, Mill Valley and Novato and other areas of Marin County. Questions like the following may help you judge drain system providers:...

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You may decide to go in person to some drain system companies in San Rafael, Larkspur, San Anselmo, Mill Valley and Novato and other areas of Marin County. Questions like the following may help you judge drain system providers:

  1. What is the drain system work likely to cost, and what could cause those amounts to be greater than expected?
  2. How likely is it that the drain system service process will be without unexpected costs or delays?
  3. What exactly will take place in the anticipated drain system service process?
  4. How should we be in contact during the drain system work?
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What to Ask References
Questions for Previous Drainage System Company Customers in Marin County

How can you know that customers of a particular drain system service in Marin County have actually had good drainage system experiences? Have particular water drainage companies really satisfied their customers?...

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How can you know that customers of a particular drain system service in Marin County have actually had good drainage system experiences? Have particular water drainage companies really satisfied their customers?



That's very important to know about drain system companies, probably the most important thing. The answer requires reliable, independent information on the drain system company.  Diamond Certified drain system companies give drainage system customers a big advantage in Marin County and the greater Bay Area. You can be sure of quality with Diamond Certified drain system companies. Consider the opportunity to read word-for-word answers from lots of random drain system customers in Marin County. You won't get misleading customer satisfaction info on drainage systems, because you'll have the researched experience of many drain system customers. And you will have the Diamond Certified Performance Guarantee on your drainage system purchase.

But if you don't choose Diamond Certified drain system providers, check the other drainage system references yourself, and don't be careless. A given drain system company may give you customers you can talk to. But that's not like reading random comments of drainage system customers from the Diamond Certified ratings process. That’s because other water drainage companies may just give you customers with good experiences and keep you away from those that have had trouble with the drain system company.

If you do call non-Diamond Certified drain system customers, get some recent customers (to avoid the drainage system company selecting only satisfied people). Ask a few general questions about the water drainage company and some specific questions about the drain system process.  Questions about drainage system work could be like these:

  1. What drain system work did you have done, and what did it cost?
  2. Did you feel good about the overall drainage system work process?
  3. Were you okay with the time it took to have the water drainage work done?
  4. Were there any unpleasant surprises in the drain system work process?
  5. Did the drain system contact person treat you well and explain things fully?
  6. Was the drain system cost reasonable, and close to the water drainage cost you had expected?
  7. What parts of the drainage system process were done particularly well by the drain system company?
  8. Would you go back to the water drainage company?
  9. Do you recommend this drain system company?
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Review Your Options
Find and Hire a Trustworthy Drainage System Company in Marin County

You may feel you can make a drain system company choice at this point.

Before you do though, think about these issues for drainage system services:...

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You may feel you can make a drain system company choice at this point.

Before you do though, think about these issues for drainage system services:

  1. Can the drain system company you're looking at in Marin County do the really important things, providing high-quality, courteous, and reasonably priced drainage system service?
  2. Will the drainage system provider give you precise information and treat you fairly?
  3. Is the drain system contractor rated highly by water drainage customers in Marin County?


Find and Contract a Good Drainage System Company in Marin County or the Greater Bay Area, Including a Drain System Provider in the Smaller Cities of Marin City, Marinwood, Marshall, Mission Rafael, Muir Beach, Muir Woods, Nicasio, Olema, Point Reyes Station, and Ross
A final question in choosing a drain system company in Marin County could be this one: do you have good evidence to believe the drain system provider will meet your specific needs for the water drainage work process?

Keep in mind the value of reading random customer satisfaction info available for prequalified and guaranteed Diamond Certified drain system companies.

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How to Work With
Before you Hire: Consider How to Get the Best Drainage System Companies in Marin County

California drain system contractors are all licensed by the Contractor State Licensing Board, but you want to know whether the drainage system provider you choose will be the best fit for your water drainage work process....

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California drain system contractors are all licensed by the Contractor State Licensing Board, but you want to know whether the drainage system provider you choose will be the best fit for your water drainage work process. All Diamond Certified drain system companies have been checked in advance for high quality, in such areas as high random customer approval ratings, customer-friendly practices, and customer-satisfaction principles.  If you don't choose a Diamond Certified drain system company in Marin County, you should search carefully yourself for a water drainage contractor that will truly meet your drainage system needs.


Drain system companies in the larger Marin County cities of Larkspur, San Rafael, Mill Valley, San Anselmo and Novato may save you more on drainage system work than can other water drainage contractors.

Now that You Have the Drainage System Contractor, Get Accurate Drain System Information in Marin County
Be sure you understand the drain system cost you are considering, and the details of the drainage system financing if any. You should be comfortable with the drain system facts. Ask for further drainage system information as needed, and make notes on the responses.

Ways to Make the Drainage System Process Easier and Go More Smoothly when you have Water Drainage Work Done
Remember to read the drain system estimate or contract carefully to find out exactly what the drainage system will cost, including the total with any financing cost added.

Sign an Estimate or Sales Contract with a Drainage System Contractor in Marin County, Including a Drain System Company in the Larger Cities of Larkspur, San Rafael, Mill Valley, San Anselmo and Novato
Review the drain system company agreement. Take plenty of time to read the drainage system  estimate or contract carefully, looking particularly for anything extra or unusual you may have agreed upon with the water drainage company.

When you’re satisfied with the drainage system estimate or cost, and any financing with the Marin County drain system contractor, sign the water drainage agreement.

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Be a Good Customer
How Can You Be a Good Drainage System Customer

Good drain system service in Marin County is the responsibility of the drainage system contractor.  But you have a part in the water drainage work process also. Consider these ideas:

  • Be simple and direct with the drain system company.
  • Be friendly and polite with the drainage system providers.

It works for you and for the drain system contractor when you take the time to be a good drainage system customer. Marin County drain system companies work well with quality water drainage customers.

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Good drain system service in Marin County is the responsibility of the drainage system contractor.  But you have a part in the water drainage work process also. Consider these ideas:

  • Be simple and direct with the drain system company.
  • Be friendly and polite with the drainage system providers.

It works for you and for the drain system contractor when you take the time to be a good drainage system customer. Marin County drain system companies work well with quality water drainage customers.

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Check the Work
Check the Drain System Work Against Your Sales Contract

Make sure everything about the drain system you are purchasing is as you expected, and that you have all the phone numbers or e-mail addresses you may need for working with the drainage system contractor.

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Make sure everything about the drain system you are purchasing is as you expected, and that you have all the phone numbers or e-mail addresses you may need for working with the drainage system contractor.

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Written Warranties
Get Warranties from Marin County Drainage System Contractors

Confirm warranties with the drain system contractor before concluding. You should have:

  • The drain system contractor ID number.
  • A detailed description of what's covered by the drain system warranty, including reservicing or money back on the drainage system.
  • Instructions for taking action on the drain system warranty.
  • The time period covered by the drain system warranty
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Confirm warranties with the drain system contractor before concluding. You should have:

  • The drain system contractor ID number.
  • A detailed description of what's covered by the drain system warranty, including reservicing or money back on the drainage system.
  • Instructions for taking action on the drain system warranty.
  • The time period covered by the drain system warranty
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Top 10 Requests
Top 10 Service Requests

Drainage services in Marin County involve different needs. Here are some common issues in water drainage:...

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Drainage services in Marin County involve different needs. Here are some common issues in water drainage:


Drainage System
The drainage system is the set of parts that allow water to drain properly out of the soil on a building site.  A good drainage system will use the right materials and be designed for adequate drainage volume and durability. Routine inspection and maintenance are also important to drainage system function. Common parts of a drainage system include drainage pipe, geotextiles for filtering soil out of the system, drainage pipe couplings, catchbasins and manholes for collecting water drainage, drainage pipe anchors, and drainage stone.
Drain Pipe
Drain pipe is a fundamental part of a drainage system. Plastic drain pipe is common because it is cheap and easy to use. Drain pipe may be flexible or rigid, and will differ by the thickness and shape of the drainage pipe walls. Flexible drain pipe has the disadvantage of allowing low points that could block water drainage. The cheapest drain pipe is thin and corrugated highly flexible drainage pipe, which can fail under the weight of construction machinery or soil, and may not allow good watertight drainage connections. Thicker corrugated pipe can improve drain pipe performance.

Drainage Pipe
Drainage pipe is likely to be made of plastic, and manufactured from one of three materials: polyvinyl chloride (PVC), polyethelene (PE), or high-density polyethelene (HDPE). Plastic drain pipe may be rigid or coiled. Rigid drainage pipe is sold in shorter lengths and requires more connections but is stronger, while coiled drain pipe requires fewer connections but may cave in or buckle under pressure. Plastic drain pipe also comes in perforated or nonperforated (tightline) drainage varieties. Perforated drain pipe allows water drainage to enter through holes or slots, and can carry more water as the size of the perforations increase.

Drain
A drain will be especially important for property that has an underwater spring. Drains may be needed for land that has a lot of clay in the soil or has bedrock rather near the surface, which can cause water to drain sideways in the soil rather than moving downwards. A swampy yard under heavy rainfall is likely to require a drain to prevent water drainage from constantly entering the basement. Drain types include French drains, trench drains (another name for French drains), soakaway drains, and slot drains.

French Drain
A French drain, or trench drain as it is also known, is extremely useful and common for relieving drainage problems from a slope above your house or poor soil drainage because of dense subsoil with large amounts of clay. The French drain is a set of 4-inch or 6-inch perforated drain pipes parallel to the surface in gravel-lined trenches 2 feet deep in the high ground around the house. The trench drains become horizontal to open onto the surface of the slope around the house, giving soil water drainage a sort of gutter for moving rapidly past and away from your house.

Drain System
A drain system can involve much more than drainage pipes. A drain system may include geotextiles, drain pipe couplings, drain pipe anchors, and drain gravel. Geotextiles are drainage fabrics that filter soil out of the water drainage to keep the drain pipes free. Drain pipe couplings are watertight joints between pieces of pipe, and common spots for drain system failure. Drain pipe anchors stabilize drain pipes against the enormous pressures resulting from water drainage moving downhill or around a bend. Drain gravel is free-draining material placed next to perforated drain pipe.

Water Drainage
Downspout drain pipes may not always be enough to keep water drainage off your roof from ending up in your basement. A storm may dump over a thousand gallons of water on your roof. To keep all of that drainage out of your basement, you may need to have underground downspout diverter drains placed. These drains will be a little over a foot deep, made of 4-inch rigid sewer pipe that is not extremely thick but not of the extremely flimsy drain pipe type. The drain pipe should not be buried in the noncompacted soil next to the foundation where the soil could could bend the drainage pipe.

Drainage
Drainage of water toward your foundation is a fact of living with rainfall. Most homes are on a slope, a prescription for foundation drainage. And foundations are surrounded with backfill soil, which contains lots of air, which wants to fill with drainage water. To keep water drainage away from your foundation, you need to a good drain next to it. Drain tile installed next to the foundation footer provides a way for the water to drain properly.

Drains
Drains can prevent ponds from forming in your yard from water drainage. The typical building code requires a minimum decrease in elevation of 6 inches over the ten feet next to your house. This may not be enough slope to keep water away from your foundation. One easy way to keep from having to regrade around your home is to use a French drain, also known as a trench drain. A French drain is made of 4-inch perforated drainage pipe laid about a foot and a half deep around your house, with a gravel bed and a layer of gravel on top. The French drain follows the slope of the yard until it gets past the house, where it levels out and seeks daylight.

Drainage Systems
Keeping the water drainage away from the foundation is not the work of a single part, but the result of a complete drainage system. A French drain, also known as a trench drain, made of perforated drainage pipe surrounded with gravel in a shallow trench can be a very important part of that drain system. The drain system should also protect the foundation by drain pipe methods for moving away water drainage from the roof, the driveways, and the patio. The foundation should also be protected by preventing plantings and mulch that could block drainage near the house, and perhaps by a tile drain at the footer.

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If Things Go Wrong
The Diamond Certified Performance Guarantee

Diamond Certified drain system contractors have the Diamond Certified Performance Guarantee. If the drain system provider is Diamond Certified and you can’t resolve the issue by talking with the local drainage system company, you can simply call the mediation department at [email protected] or call 800-738-1138....

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Diamond Certified drain system contractors have the Diamond Certified Performance Guarantee. If the drain system provider is Diamond Certified and you can’t resolve the issue by talking with the local drainage system company, you can simply call the mediation department at [email protected] or call 800-738-1138.


Know Your Rights as a Marin County Drainage System Customer
Marin County drain system companies will most likely do well for their water drainage customers, but you may sometimes need to take further action. For information about your rights as a drain system customer in California, see the Contractor State Licensing Board website.

Easy Ways To End Conflict with Marin County Drainage System Contractors or Drain System Providers
If you are unhappy with the result with a drain system company, the starting point is usually to talk with the drainage system representative right away.
Remember these things for that conversation about drain system work issues:

  • As a California drain system customer in Marin County, you have rights. You must receive a sales contract for your drainage system costs including any financing provided. For information about your rights as a drain system customer in California, see the Contractor State Licensing Board website.
  • It will always be best to remain calm and polite in talking over the drain system issues.
  • Be clear about how you feel the drainage system problem should be handled.
  • Speak calmly and be fair in coming to a solution for the water drainage work problem.

Keep notes on the conversation with the drain system contractor, for later use. If you have to, tell the drain system company representative that you will be contacting the Contractor State Licensing Board, and follow through with that action.

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Glossary of Terms
Glossary of Residential Drainage System Terms

Below are some drainage terms which may be of help in understanding drain systems and communicating with your local drainage contractor:

catchbasin
A chamber for trapping soil and other drainage material below the drain outflow point.

Also known as: drain, drains, drainage, drain system, water drainage, drainage system, drainage systems

drain...

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Below are some drainage terms which may be of help in understanding drain systems and communicating with your local drainage contractor:

catchbasin
A chamber for trapping soil and other drainage material below the drain outflow point.

Also known as: drain, drains, drainage, drain system, water drainage, drainage system, drainage systems

drain
A pathway to drain water drainage properly off of and out of the soil. Drains are most often installed by licensed drainage contractors who can measure the specific angles, depth and other job specifics to install the most effective drain system for the property.


Also known as: drain, drains, drainage, drain pipe, drain pipes, drain system, water drainage, drainage pipe, drainage system, drainage systems, French drain, trench drain, soakaway drain

drain system
A set of channels, drains, ditches and similar runoff pathways for carrying water drainage off the surface and out of the soil.

Also known as: drain, drains, drainage systems, drainage, drain pipe, drainage pipe, drain pipes, drain system, water drainage, drainage system, French drain, trench drain, soakaway drain

drainage
The total process by which water drainage flows off the surface and drains out of the ground to reach streams, rivers, and man-made drains.

Also known as: drains, drainage, drain, drain pipe, drain pipes, drain system, water drainage, drainage pipe, drainage system, drainage systems, soakaway drain, French drain, trench drain

drainage ditch
An open man-made drain designed to carry water drainage from the surface or the soil.

Also known as: drain, drains, drainage, drain system, drainage system, water drainage, drainage pipe, drainage systems

drainage system
A residential design made to drain away surface water and groundwater drainage through such devices as downspout diverter drains, French drains, and trench drains.

Also known as: drain, drainage, drain pipe, drain pipes, drains, drain system, water drainage, drainage pipe, trench drain, drainage system, drainage systems, French drain, soakaway drain

grade
A drainage slope, particularly the minimum required drainage slope of 6 inches in 10 feet to drain the ground around your house.

Also known as: drainage systems, drainage, drain system, water drainage, drainage system

open drain
A ditch or surface channel drain for water drainage.

Also known as: drain, drainage systems, drains, drainage, water drainage, drainage pipe, drainage system, drain system,

plastic drain pipe
Drainage pipe made of polyvinyl chloride (PVC), or drain pipes made of polyethylene (PE) or high-density polyethylene (HDPE).

Also known as: drain, drains, drain system, drainage, drain pipes, water drainage, drainage pipe, drainage system, drainage systems, French drain, drain pipe, trench drain, soakaway drain

riparian
Related to the banks of river or stream water drainage.

Also known as: drainage, water drainage, drainage system, drainage systems

runoff
Water drainage that doesn't drain into the soil, but runs along a surface or through a drain pipe.

Also known as: water drainage, drain, drains, drainage, drain pipe, drain system, drainage pipe, drainage system, drainage systems, drain pipes

sedimentation
Settling out of soil or other suspended material in a drain pipe or elsewhere within a drainage system.

Also known as: drains, drainage, water drainage, drain, drainage system, drainage systems

soakaway
A drain pit for surface water drainage to be absorbed into the earth.

Also known as: drain, drains, drainage, drain system, water drainage,drainage systems, soakaway drain

subsurface drain (SSD)
An underground pervious drain pipe for collecting water drainage from the soil, such as a French drain or trench drain.

Also known as: drain, drains, drainage, drain pipes, drain system, drainage systems, water drainage, drainage pipe, drain pipe, drainage system, French drain, trench drain, soakaway drain

surface runoff
Water drainage that runs along a surface, as opposed to water that drains into a surface.

Also known as: drain, drainage, drain system, drainage system, drains, water drainage, drainage systems

surface water
Water drainage that goes directly to the drainage system, and does not drain through the ground.

Also known as: drainage, water drainage

tile drain
Underground, perforated plastic, clay, or concrete pipe to drain water drainage from the soil.

Also known as: drain, drains, drain pipe, drain pipes, drain system, drainage, water drainage, French drain, drainage pipe, drainage system, drainage systems, trench drain

tile drainage
A set of tile drains for water drainage.

Also known as: drains, drain, drainage, drain pipe, drain pipes, drain system, water drainage, drainage pipe, drainage systems, drainage system

underground drain
A buried drain pipe with slots or holes for collecting water drainage from the soil, such as a French drain or trench drain.

Also known as: drain, drains, drain pipe, drainage systems, drain pipes, drain system, water drainage, drainage, drainage pipe, drainage system, French drain, trench drain

water table
The underground water drainage level to which surface water will drain.

Also known as: drains, drainage, drain system, water drainage

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Frequently Asked Questions
FAQ for Drainage Experts in the Bay Area and Beyond

Q: Why choose a Diamond Certified drain system company?...

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Q: Why choose a Diamond Certified drain system company?
A: Because Diamond Certified drainage companies end the guessing game by offering a choice of top-rated drainage system providers who have passed the most in-depth rating process. Most drainage companies can’t meet such a high standard, which means only local drain system providers rated Highest in Quality earn the Diamond Certified award. American Ratings Corporation also looks at every Diamond Certified drainage company with in-depth and ongoing research and ratings. And your drain system purchase is always backed up by the Diamond Certified Performance Guarantee. You can feel confident choosing a Diamond Certified drain company for your home drainage needs.

Q: What is a drain system?
A: A drain system is a set of parts for getting water drainage off the surface, out of the soil, and into the watershed. Important considerations in drain systems are the use of drainage materials that will meet drain volume and durability needs. Common parts of drainage systems are drain pipes and drain tile, drain gravel, drain pipe couplings, drain pipe anchors, geotextiles, and catchbasins.


Q: What is a designated drainage exit?
A: A drainage exit is a place designated by your city's stormwater drain plan to receive rainwater runoff. The drain exit could be a sewer drain or a sloped drainage area.

Q: What should I know about different kinds of drain pipe?
A: Thin, corrugated drain pipe is cheap, but is not as strong as thicker drain pipe. Thinner drain pipe may develop low points, and may allow drain leakage at connections. Rigid drain pipe is stronger and protects better against drain problems from crushing and kinking. However, rigid drain pipe will require more drain couplings.

Q: Will a French drain system or trench drain solve problems with a swampy yard and a basement that's always wet?
A: Absolutely. A French drain, also known as a trench drain, is made of perforated drain pipe surrounded with drainage gravel in a trench about 2 feet deep. A French drain has been the miracle cure for drainage problems around thousands of homes, and will solve many drain system problems with the yard and basement.

Q: Does the French drain or trench drain system require a geotextile filter sock to go around the drain pipe or line the trench?
A: Not necessarily, and probably not. The geotextile is sometimes used to keep silt out of drain gravel and perforated drain pipe, but is not necessary unless fluffed dirt or large amounts of dirt are used on the top of the trench drain system.

Q: Will a drain system solve the problem of a muddy drainage area between houses where grass won't grow?
A: A French drain (trench drain) or other drainage system solution may keep the area drier, but there could also be a shade problem that is affecting grass growth in addition to the drainage problem.

Q: Will a French drain (trench drain) need to be dug up to remove blockage?
A: Digging up a French drain system might sometimes be necessary, if for example the drain pipe has been smashed. Often however, a snake will work to clear the drain pipe, or water under high pressure may restore proper drainage.

Q: Do I need more than downspout drains and splash blocks to keep stormwater drainage from my roof out of my basement and crawlspaces?
A: Underground downspout diverter drain pipes made of 4-inch sewer line may be a good drainage system solution. These diverter drain pipes can be fairly shallow, and will drain water away from forming drainage pools around a few downspout drain pipes.

Q: Is it possible to save and reuse drainage system water?
A: It could be, if you have the space for drain system tanks below or above ground, and if there are not downstream issues with water drainage rights.

Q: What's the best way to find a good drain system company?
A: An ideal way to get good drain system and drain pipe service is to choose a Diamond Certified drain system company. Diamond Certified water drainage providers offer advantages that are hard to beat: highest scores on random customer surveys, customer-friendly business practices, customer satisfaction principles, mediation, and great guarantees on drain system services.

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Consumer Agencies
Agencies and Associations Dealing with Water Drainage Issues

The following agencies and associations will have more information about home drainage solutions, local drainage companies and finding and installing the best water drainage systems for your property.

Association of California Water Agencies (http://www.acwa.com/)
California Stormwater Quality Association (http://www.casqa.org/)...

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The following agencies and associations will have more information about home drainage solutions, local drainage companies and finding and installing the best water drainage systems for your property.

Association of California Water Agencies (http://www.acwa.com/)
California Stormwater Quality Association (http://www.casqa.org/)

Plastics Pipe Institute (http://plasticpipe.org/)
US Society of Irrigation and Drainage Professionals (http://uscid.org/)

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Industry Information
Marin County Drainage Information
Popular Types of Drains and Drainage SystemsTypes of Drainage Services Available in Marin County Cities Served Zip Codes Served
soakaway drainsdrainage system repairsAlmonte
Bel Marin Keys
Belvedere
Belvedere Tiburon
Black Point
Bolinas
Corte Madera
Dillon Beach
Dogtown
Fairfax
Forest Knolls
Greenbrae
Ignacio
Inverness
Kent Woodlands
Kentfield
Lagunitas
Larkspur
Lucas Valley
Marin City
Marinwood
Marshall
Mill Valley
Mission Rafael
Muir Beach
Muir Woods
Nicasio
Novato
Olema
Point Reyes Station
Ross
San Anselmo
San Geronimo
San Marin
San Quentin
San Rafael
Santa Venetia
Sausalito
Sleepy Hollow
Stinson Beach
Strawberry Point
Tamal
Tamalpais Valley
Terra Linda
Tiburon
Tomales
Woodacre
94901
94903
94904
94912
94913
94914
94915
94920
94924
94925
94929
94930
94933
94937
94938
94939
94940
94941
94942
94945
94946
94947
94948
94949
94950
94956
94957
94960
94963
94964
94965
94966
94970
94971
94973
94974
94976
94977
94978
94979
fin drainsstorm drainage system solutions
dispersal drainssustainable drainage system solutions
trench drainsunderground drainage system installation
slot drainsyard drainage system installation
land drainsrainwater drainage
French drainssurface drainage & grading
land gradingfoundation drainage system installation
dry creeksresidential drainage services
collector drainscommercial drainage services
linear drainage systemsland drainage installation