Diamond Certified

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Frequently Asked Questions
FAQs for Paving Stone Companies

Q: Why choose a Diamond Certified paving stone contractor in Alameda County?
A:Diamond Certified helps you choose a paving stone contractor with confidence by offering a list of top-rated local companies who have passed the country's most in-depth rating process. Only paving stone contractors rated Highest in Quality earn the prestigious Diamond Certified award. Most companies can't pass the ratings. American Ratings Corporation also monitors every Diamond Certified company with ongoing research and ratings. And your purchase is backed by the Diamond Certified Performance Guarantee. So you'll feel confident choosing a Diamond Certified paving stone contractor.

Q: Are pavers appropriate for using on a driveway?
A: Yes, paving stones are a great choice for driveways. You need to choose an appropriate base material for the paving stones, and make sure the base is completely compacted to avoid sinking, puddle accumulation and uneven parking surfaces. Driveway pavers are a wise choice because they tend to be more stain resistant and more easily replaceable than concrete or asphalt surfaces.

Q: Is it possible to use paving stones over my already existing concrete?
A: While it is possible to install paving stones over concrete, you may need a material on top of the concrete before laying the paving stones. You might want to have the concrete removed. Many times it is not that expensive.

Q: Do concrete pavers need to be sealed?
A: While sealing is not necessary, there are sealers available. These sealers do make stains easier to remove. This sealer is applied after the pavers have been cleaned. It soaks into the pavers and sand joints.

Q: What keeps pavers from cracking like concrete?
A: Paving stones have a much higher density than concrete. Also the interlocking of paving stones enables it to bear a greater load. Since there are joints, these joints relieve pressure allowing movement for the paving stones.

Q: How long will my new paving stones last?
A: Many paving stone manufacturers offer a lifetime warranty. Because they are so easy to repair or replace, there is no reason to worry.

Q: How do I go about enhancing the color of my paving stones?
A: You can apply a paver enhancer to your paving stones. This will give the pavers a "wet look" and it also brings out the color.

Q: Why is sand installed between the base and the paving stones?
A: The sand will allow the final grade to be more precise. This sand will also keep the pavers from developing efflorescence (which is the white powder that is often seen on paving stones). The sand will also help with any drainage and allow the water to go into the base and then into the ground. The sand also acts as a cushion for the stones and helps keep them even as they settle.

Q: How do I choose the right paving stones for my project?
A:Because of the overwhelming choices in paving stones, this can be difficult. Not only is there a wide array of choices but you also need to know other factors (such as drainage) that will influence our decision. First, visit several paving stone companies and look at the displays. Find the stones that most appeal to you. Then, talk to the contractor and let them know which displays attract you. The contractor is qualified to guide you through the process of selecting materials. For instance, if the display that most appealed to you isn't appropriate for your project, they can find a material that is appropriate but looks similar to what appealed to you. Let the contractor guide you through the process.

Q: What are interlocking paving stones?
A:Interlocking paving stones interlock to allow each to move independently. This allows the pavers to carry a bigger load because the weight is spread out. This is also the key to the interlocking paving stones strength.

Q: How do I go about removing stains?
A:Replacing stained pavers is the easiest or some can be flipped over. However, there are special cleaners made that will remove stains or do surface cleaning.