When installing interlocking stones, what do you place between the stones to hold them in place?

The best insurance against shifting stones is the proper installation of polymeric joint sands and a stablizing sealer. Additionally, adding edge restraints around the border of your paver installation will ensure pavers don’t shift out of place. Permeable pavers come with special spacer bars at the side of units to provide additional lockup to stabilize the pattern and allow water to flow through.

What happens when a stone chips or cracks during installation? Am I covered under warranty?

Unilock offers a Lifetime Guarantee for products used on residential installations that are installed according to our guidelines. Click here to learn more.

What should I clean my pavers with?

All Unilock Dealers carry general cleaning solutions and specialized ones designed for oil and grease, efflorescence, etc. Many customers simply use regular dish soap & water. The main thing is not to use a wire brush (the pieces of wire can become dislodged and promote rust) and to be gentle with the sand.

I am planning to power wash my Unilock pavers, do you have any pointers before I do it?

There are a few general guidelines when power washing your pavers. Do not use the pressure washer on high power when rinsing, or you risk damaging the surface. Always keep the nozzle at a 30° angle 12″ away from the surface and use the fanned nozzle setting. If some jointing sand washes out, you may need to sweep in some new sand.

How do I get rid of moss between my pavers?

Moss generally develops in the shaded areas that are slow to dry up after rain. If you want to remove it, it is recommended that you simply pressure wash the surface after applying a solution of 20% dish soap and 80% water to the surface. It is important to remember to not use the pressure washer on high power or too close to the surface when rinsing, or you risk damaging the surface. Always keep the nozzle at a 30° angle, 12’’ away from the surface and use the fanned nozzle setting.

Where do weeds come from? How do I prevent them?

Weeds do not come from underneath the pavers, they come from seeds that blow in from adjacent properties and fall into the joints and germinate. The best way to prevent weed growth is to put Polymeric Sand into the joints between pavers. Never put plastic underneath the pavers, this will keep the joints wet and only make weeds grow faster.

Are all of your products available in every region?

Products and colors vary by region. When browsing our products online ensure your region is properly saved at the top of your screen so that you are viewing what is available to you locally.

Do you offer any sort of warranty on your products?

Unilock provides a Transferable Lifetime Guarantee on the structural integrity of our paving stones, slabs and retaining wall units to the original purchaser of the product for residential use.

Will my pavers last through the winter months?

Unilock pavers can be used in any climate. In fact, that is why the northern cities in Canada have so many paved streets and sidewalks.

Can I use any brand of sealer or sand on my pavers?

Check with your Unilock Dealer for preferred sealing products and sands on Unilock products. Brands vary by Unilock region.

Are Unilock wall products safe to use for a fire pit?

Our wall products can been used to build fire pits but our stones are not fire rated. If you choose to build a fire pit with our stones you would need to line it with fire brick to withstand the high heat.

Are the dimensions advertised in the catalog the best dimensions to use? I do understand that these are nominal dimensions. Do these dimensions include the edge spacing tabs?

Our measurements are nominal because there can be small variances in dimensions when forming concrete pavers. Our recommendation is to measure several sample pavers and work from those measurements. One way to confirm measurements is to measure an area of the product laid out at a local Unilock Dealer or Unilock Idea Center. The dimensions do include spacing tabs but we would not use them as a definitive measurement. Areas can also vary due to installation. The size of an area is also dependent on how tightly the pavers are laid.

Can I use concrete adhesive on block that are moist?

No, your concrete surfaces should be dry prior to gluing.

Where can I find sample products?

Visit a Unilock Outdoor Idea Center or Dealer to and speak to one of our staff on site to find samples. Click here to find a location near you.

How will I know how much paver/wall product I will need for my outdoor project?

Unilock Authorized Contractors can access Speed-Calc™, our Paver and Wall Calculator, a free and easy-to-use tool to help you determine how many bundles and partial bundles you will need for your outdoor project.

How should I make a final selection of a paver color?

Preliminary color selection starts with visiting unilock.com. Once you narrow down your options we suggest you get physical samples from our Unilock Idea Center or from your contractor. This is best, so you can see the pavers outdoor in natural light.

Do you have any helpful hints for hiring a contractor?

We recommend reading the How to Choose a Contractor page. It addresses some questions you should ask and what to look for when you’re hiring a contractor.

Do you have any information on how to get my landscape project started?

We suggest you visit one of our Idea Centers and speak to our knowledgeable and helpful sales staff before starting your project.

What makes Unilock the best paving product compared to other companies?

North America's most prestigious and trend-setting designers and installers prefer Unilock pavers and retaining walls because of design, quality and innovation and is the main reason for Unilock's unmatched success for over 50 years.

What's the difference between an EnduraColor and Elegance product?

EnduraColor technology uses a two-step manufacturing method to produce pavers that are smoother resulting in a surface finish that is more resistant to wear or the appearance of fading. Elegance products use Ultima concrete to ensure pavers are up to four times stronger comparted to poured-in-place concrete and incorporate Reala Technology to create authentic looking surfaces cast from natural flagstone, brick, and cobblestone molds. Both EnduraColor and Elegance products bring distinctive style and long-lasting durability to your hardscape project.

What is EasyClean technology?

EasyClean is a proprietary technology that involves the application of a specially designed coating to the pavers during the manufacturing process. This superior sealant, applied in a controlled environment, effectively protects Unilock pavers from stains, making them easier to clean than traditional pavers. EasyClean is proven to protect against the deep penetration of common stains including ketchup, mustard, wine, as well as typical organic stains resulting from leaves, dirt, and moss.

What is Unilock DriveGrid Geogrid?

DriveGrid is used below the base material in your driveway or patio to prevent settlement or rutting caused by vehicle weight. DriveGrid through its unique triaxial design works by mechanically stabilizing the gravel base under the pavers resulting in a strong surface. This engineered and proven technology is inexpensive and easy to install and has made DriveGrid the best anti-rut insurance you can get.

Frequently Asked Questions

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Can a Unilock Authorized Contractor install lighting into a paver?

Absolutely! We encourage homeowners to consider landscape lighting ideas into their initial design plans, and to discuss it early in the process with their Authorized Contractors. It’s important to evaluate where in your outdoor project it makes the most sense to incorporate landscape lighting. Evaluate dark corners, walkways and other areas where illumination is important for safety.

Can Unilock install a heated driveway?

Unilock does not sell or manufacture their own heated driveway systems, but if you are concerned about damaging your pavers due to shovelling or plowing your driveway, a Unilock Authorized Contractor can install a driveway heated system as your driveway is being built. Speak with a Unilock Authorized Contractor to learn more.

Can I use Unilock pavers for a driveway?

Yes, Unilock designs paver products for multiple purposes, not just driveways. Unilock pavers enhance curb appeal and are proven to be more durable than poured-in-place concrete and asphalt. There are many advantages to utilizing Unilock pavers for your driveway project, click here to learn more.

Can I use Unilock pavers around a pool?

Absolutely! Unilock produces a number of unique pavers that will complement your pool project. If you’re looking for some unique design ideas, click here.

Are there height restrictions when building a retaining wall?

If you are building a retaining wall to hold up a load, such as a driveway or a swimming pool, or any wall over 3 feet in height, the wall must be engineered by a professional engineer. Always make sure to observe local building codes, and if you have any questions, please consult your Unilock Authorized Contractor.

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