How to Attach Quartz Backsplash to Countertop

Installing a quartz backsplash can greatly enhance the look of your kitchen countertop. Quartz is an engineered stone that is non-porous, stain resistant and easy to clean, making it a practical yet beautiful backsplash option. Attaching a quartz backsplash to the countertop is a relatively straightforward DIY project that can be completed in a day. Here is a step-by-step guide on how to attach a quartz backsplash to your countertop.

What You Need

  • Quartz backsplash slabs – Make sure it is the same thickness as the countertop.
  • Construction adhesive – Such as Liquid Nails or Loctite PL premium.
  • Caulk/silicone sealant
  • Painter’s tape
  • Trowel for applying adhesive.
  • Denatured alcohol to clean the surface.
  • Rags
  • Utility knife
  • Straight edge/level
  • Dust masks and safety goggles.

Preparing the Surface

Before attaching the backsplash, make sure that the countertop and backsplash slabs are clean and free of dirt, grease or waxes.

  • Clean the surface of the countertop and backside of the backsplash with denatured alcohol. Let it dry completely.
  • Use painter’s tape to mask off the area on the countertop and wall where the backsplash will be installed.
  • Make sure the countertop is level by placing a straight edge or level across the surface.

How to Attach the Backsplash

Step 1 – Apply Adhesive

Apply a zig-zag pattern of construction adhesive on the backside of the backsplash using a trowel. Spread the adhesive evenly across the entire backside surface.

Step 2 – Set Backsplash in Place

Carefully set the backsplash in place against the countertop and wall. Make sure it is pressed firmly in place. Use a straight edge against the countertop to keep the backsplash aligned properly.

Step 3 – Let Adhesive Cure

Allow the adhesive to cure completely according to manufacturer’s directions. This usually takes 24 hours. Use painter’s tape to hold it in place as the adhesive dries.

Step 4 – Apply Silicone Caulk

Once cured, apply a bead of silicone caulk along all seams and joints between the backsplash and countertop/wall. Smooth the caulk with a wet finger for a clean finish.

Step 5 – Clean Up

Remove painter’s tape and any excess adhesive or caulk. Clean the surface of the backsplash and countertop. Let cure completely before using.

Tips for Installation

  • Make sure backsplash and countertop slabs are from the same manufacturer.
  • Test fit the backsplash prior to installing to ensure proper fit.
  • For heavy stone backsplashes, use additional construction adhesive or silicone adhesive.
  • Take care applying even pressure when setting backsplash in place.
  • Allow proper curing time before using countertop.
  • Use a grout color that matches the countertop/backsplash.

Installing a quartz backsplash is a relatively easy DIY project that can add function and beauty to your kitchen. Just make sure to carefully follow all preparation and installation steps for proper adherence. With the right tools and materials, you can achieve a seamless look.

Frequently Asked Questions

How long does construction adhesive take to cure?

Construction adhesive usually takes 24 hours to fully cure. Be sure to follow the specific product directions. Some may cure slower or faster depending on temperature and humidity.

What color caulk should I use with a quartz backsplash?

Use a caulk color that matches your quartz backsplash and countertop. Often a bright white or almond color silicone caulk provides the best seamless look.

Should the backsplash and countertop be from the same manufacturer?

It is highly recommended to use a backsplash and countertop from the same manufacturer. The materials are formulated to adhere properly to each other. Using mismatching materials can cause bonding issues.

What do I do if the backsplash won’t lay flat on the countertop?

Check that the countertop surface is clean and level. You may need to apply weights or clamps to hold the backsplash tight to the surface as the adhesive dries. Uneven walls or improperly leveled countertops can prevent a smooth installation.

Can I install a quartz backsplash on tile or drywall?

Quartz backsplashes are designed to be adhered directly to solid surfaces like quartz countertops. Installation on other surfaces may not provide a long-lasting bond.


Installing a quartz backsplash is one of the best ways to finish a kitchen countertop. With the right preparation and installation technique, you can achieve a seamless and professional look. Be sure to use proper adhesives and allow adequate curing time. Pay close attention to properly aligning and pressing the backsplash firmly into place. Follow the manufacturer’s recommendations and safety precautions. With some patience and handy skills, you can complete this project and enjoy an upgraded kitchen design.