How to DIY Quartz Countertops


Installing quartz countertops can transform the look of your kitchen or bathroom by providing an elegant and durable surface. While quartz countertops are more affordable than other options like granite or marble, installing them still represents a significant investment. For that reason, many homeowners consider DIY quartz countertop installation to save on labor costs. With proper planning and preparation, you can absolutely DIY your quartz countertops and end up with beautiful results. This comprehensive guide will walk you through all the steps and considerations for a successful DIY quartz countertop installation.

Benefits of Quartz Countertops

Before jumping into the installation process, let’s first review some of the benefits that make quartz an excellent countertop choice:

  • Durability – Quartz is highly resistant to scratches, stains, and heat. It’s stronger than granite and won’t need frequent resealing like natural stone.
  • Low maintenance – Simple cleaning with soap and water is all that’s needed to keep quartz countertops looking like new.
  • Stylish options – Quartz comes in a wide array of colors and patterns to fit any style. Subtle patterns like granite-look can mimic natural stone.
  • Hygienic – The nonporous surface inhibits bacterial growth making it ideal for kitchens.

Understanding these advantages can help motivate you to take on this DIY project to upgrade your space with quality countertops that will last for many years.

Is DIY Quartz Countertop Installation Right for You?

Installing new countertops is a big project, so make sure DIY is the right choice before getting started. Here are a few things to consider:

  • Time – Be prepared to spend 2-3 full days on installation. Rushing through the job can compromise quality. Make sure your schedule allows adequate work time.
  • Expertise – Having experience with tile, woodwork, plumbing, and electrical gives you skills needed for success. Being comfortable using tools is also key.
  • Budget – Calculate material and rental costs to ensure DIY is more affordable than professional installation. Remember to account for mistakes and delays.
  • Space – You’ll need sufficient indoor and outdoor space for cutting quartz slabs and working. Measure your shop or garage to be sure it can accommodate.

If time, budget, expertise, and space all align with DIY installation, then roll up those sleeves and get ready to transform your kitchen or bath!

Quartz Countertop Materials Needed

Gathering all the necessary quartz countertop materials ahead of time will make your installation process far easier. Here’s what you’ll need:

Quartz Slabs

  • Measure existing countertop space
  • Add 1-2 inches for overhang
  • Select color/pattern
  • Order slabs cut to the right sizing


  • 100% clear silicone – attach sink/backsplash
  • Thinset mortar – adhere slabs to cabinet

Finishing Materials

  • Quartz polish
  • Sealant

Tools & Equipment

  • Tape measure
  • Pencil
  • Safety glasses
  • Ear protection
  • Dust mask
  • Clamps
  • Level
  • Circular saw with diamond blade
  • Router
  • Jigsaw
  • Orbit sander
  • Drill
  • Silicone gun
  • Mixing tub
  • Spackle knife
  • Shop vac
  • Drop cloths
  • Rags
  • Denatured alcohol

Other Supplies

  • Wood shims
  • Blue painters tape
  • Wood glue
  • Wood filler
  • Wood boards for support

This covers all the basics you’ll need. Check off each item as you gather supplies to stay organized. Also review any tool manuals for safety tips before use. Proper preparation makes installation smooth and hassle-free.

How to DIY Quartz Countertop Installation

Now comes the fun part! With all your materials handy, follow these step-by-step instructions for DIY quartz countertop installation:

Step 1: Remove Existing Countertop

First, use a utility knife to cut through any caulk attaching the old countertop to walls/backsplash. Then disconnect any appliances, faucets, or plumbing fixtures from below. Finally, unscrew countertop from cabinets and remove it along with baseboards if present. Scrape off leftover caulk and adhesive thoroughly to prep the surface.

Step 2: Install New Support Boards

Quartz slabs are very heavy, so existing cabinets likely need extra reinforcement. Measure cabinet perimeters and cut 3/4” plywood boards to fit around the edges. Use wood glue and nails to attach support boards on top of cabinets. Use shims if needed to level the boards. Let dry completely.

Step 3: Dry Fit Quartz Slabs

Carefully move slabs into position on cabinets without any adhesive. Use wood shims to adjust any uneven spots. Cut slabs as needed with circular saw using sharp diamond blade and water for cooling. Make small precise cuts near walls. Dry fit until each slab fits perfectly in place.

Step 4: Adhere Slabs to Cabinets

With everything fitting correctly, lift slabs off one by one and clean the bottom and cabinet tops. Apply thinset mortar using a spackle knife. Carefully lower slabs back into place, pressing down firmly to adhere. Allow mortar to dry completely. Have a helper for large slabs.

Step 5: Cut Out Spaces for Sink/Range

Use the sink and range cutout templates aligned on slabs to mark cutout shape with pencil. Drill inside corners, then use a jigsaw to cutout following pencil lines. Make rounded corners with a router. Smooth edges carefully with an orbit sander. Vacuum dust thoroughly.

Step 6: Seal Seams and Gaps

Where two slabs meet, seal the seam gap with thin bead of clear silicone all along the joint using a silicone gun. Tool the silicone smooth with a wet spackle knife. Allow silicone to fully cure for 48 hours before moving on.

Step 7: Attach Sink and Backsplash

Set the sink into cutout space, align properly, and attach below using silicone and clamps until dry. Next run a silicone bead along seam between countertop and walls/backsplash. Carefully press backsplash in place and allow silicone to adhere fully before removing clamps.

Step 8: Finish Edges

For a polished finished look, use a router with rounded edge bit to shape all countertop front and side edges. Make several light passes circling edges to prevent chipping. Sand and vacuum when done.

Step 9: Clean and Seal Surface

Remove all debris, then clean countertops with denatured alcohol. Use several coats of stone sealant evenly across the surface. Let dry fully. Finally, enjoy your beautiful new quartz countertops!

FAQs about DIY Quartz Countertops

Still have some questions about tackling quartz countertops yourself? Here are answers to some frequently asked questions:

What should I use to cut a quartz slab?

Use a circular saw with a high-quality diamond blade specifically for stone. Water helps keep dust down while cutting. Make several shallow passes for clean cuts.

Can I install quartz countertops directly over existing laminate?

No. Existing countertops must be removed to install on secure cabinet framework for proper quartz support.

How long does quartz adhesive take to cure?

Adhesives like thinset mortar or silicone need 24-48 hours full curing time before countertops can be used.

Can quartz edges be bullnosed, beveled, or mitered?

Yes. A router with specialty bits can add various edge profiles. DIYers can round over edges for safety.

Do quartz seams need special treatment?

Seams should have a thin bead of clear silicone for moisture prevention. Seam width should be less than 1/16 inch.

How often does quartz need to be resealed?

Quartz is nearly maintenance-free, but reapplying sealant every 3-5 years will maintain water-resistance.

Can I pour directly boiling liquid on quartz?

It’s best to use trivets and hot pads. While quartz withstands heat, direct extreme heat could potentially damage surfaces.


Installing new quartz countertops can make a huge difference in your home’s aesthetics and functionality. By following this DIY guide, you can save on installation costs and learn new skills in the process. The key is taking your time, using proper materials, and adhering carefully to each step. Patience and attention to detail will ensure you end up with stunning quartz countertops that look professionally installed. Just imagine the satisfaction and pride that comes with transforming your space with your own handiwork. So don your safety gear, gather supplies, and get ready to DIY those dazzling new quartz countertops!