How to Fix a Quartz Countertop

Quartz countertops are a popular choice for many homeowners due to their durability, low maintenance, and stylish appearance. However, like any countertop material, quartz can become damaged over time. The good news is that many quartz countertop problems can be fixed with the right techniques and products. Here is a comprehensive guide on how to fix the most common issues with quartz countertops.

Cleaning and Preventing Stains on Quartz Countertops

Regular cleaning is key to keeping quartz looking its best. Here are some tips for cleaning and preventing stains:

Use a pH-balanced Cleaner

  • Avoid cleaners that are too acidic or alkaline, as they can etch or discolor the surface. Look for a pH-balanced quartz countertop cleaner.

Clean Spills Quickly

  • Don’t let spills sit too long. Clean up food and drinks right away to prevent staining.

Avoid Abrasive Cleaners and Pads

  • Scouring powders, stiff scrub brushes, and abrasive pads can scratch quartz. Use a soft cloth or non-abrasive sponge.

Prevent Oil Stains

  • Wipe up food prep oils like olive oil quickly to avoid oil stains. Use a degreasing cleaner to remove grease.

Spot-Clean Stubborn Stains

  • For stains that don’t come out with regular cleaning, use a non-abrasive stain removal pad.

Repairing Scratches and Nicks on Quartz Countertops

While quartz is very durable, it can become scratched or nicked over time. Here’s how to fix light surface damage:

Sanding and Polishing

  • For light scratches, use incremental grit sandpaper (400, 800, 1500, 3000) to gently sand the area in circular motions. Finish by polishing with a quartz polish or automotive buffing compound.

Filling Kits

  • For deeper scratches or nicks, use a quartz countertop repair kit. Clean the area, fill the damage with adhesive, smooth with a plastic putty knife, wipe away excess, and cure with a UV light. Finish by gently sanding flush.

Contact a Professional

  • For heavy damage or large gouges, it’s best to contact a professional quartz fabricator/installer for repair. They have the tools and expertise to fix deep damage.

Removing Difficult Stains on Quartz

For stubborn stains that don’t respond to regular cleaning, try these techniques:

Bleach Gel

  • Apply a thick bleach gel to the stain and let sit for up to 30 minutes. Rinse thoroughly. Only use bleach on white/light quartz.

Baking Soda Paste

  • Make a paste with baking soda and water. Apply to the stain and let sit for several hours before scrubbing and rinsing.

Hydrogen Peroxide

  • Dab concentrated hydrogen peroxide on a stubborn stain. Let bubble for 5-10 minutes then wipe away. Rinse thoroughly.


  • Use sparingly on a cotton ball to spot-treat oil-based stains. Rinse immediately. Avoid overuse as acetone can dull the surface.

Restore Finish

  • For stains that have etched the quartz surface, use a quartz polish or restorative finishing product to buff out dull spots and restore sheen.

Fixing Chips and Cracks in Quartz Countertops

Chips and cracks are common quartz damage. Here are the best repair options:

Chip Repair Kit

  • Small chips can be repaired with a quartz chip repair kit. These contain tinted adhesives to fill the chip and match the color. Smooth and cure under UV light.

Crack Injection

  • Fine cracks can be filled by injecting a quartz adhesive deeply into the fissure. Allow the adhesive to cure completely according to instructions.

Seamless Patch

  • Larger chips or cracks may need a seamless patch. This involves cutting out the damage in a rectangle and securely bonding in a replacement quartz patch. Finish the seams smooth.

Professional Resurfacing

  • For extensive cracking damage, a full resurfacing by a professional may be required. This involves grinding down the damaged quartz layer and overlaying new quartz.

Removing Etching Damage from Quartz Countertops

Quartz can become etched by acidic foods and chemicals. Here’s how to remove etching:

Buffing and Polishing

  • Use a handheld buffing pad or variable speed polisher with a quartz polish to gently buff out fine etching. Rinse thoroughly after buffing.

Etch Remover Chemicals

  • Apply a quartz etch remover product using a soft cloth. Rub into etching marks according to product instructions. Rinse thoroughly.

Professional Refinishing

  • For deep, extensive etching, professional refinishing may be required to grind down and resurface the damaged areas. This will provide a fresh quartz layer.

How to Fix Quartz Countertop Seams Coming Apart

Adhesive and grout in quartz countertop seams can fail over time. Here is how to re-seal:

Clean and Dry the Seam Area

  • Clean out any old adhesive or grout from the seam using a utility knife, then thoroughly dry the area so new adhesive adheres.

Re-seal with Adhesive

  • Re-seal the seam by forcing an acrylic adhesive back into the seam with a putty knife. Smooth flush. Wipe away excess adhesive.

Clamp Tightly

  • Use C-clamps tightly along the length of the seam. Allow adhesive to fully cure for 24 hours before removing clamps.

Remove Excess Adhesive

  • Once cured, any dried excess adhesive can be gently scraped away with a plastic putty knife. Take care not to scratch the quartz.

Color-match Seams

  • Use adhesive in a matching quartz color. Or apply matching caulk along the seam to conceal any discrepancies in color.


How do you disinfect a quartz countertop?

Use a disinfectant cleaner formulated for quartz or a dilute bleach solution (1 part bleach to 20 parts water). Avoid harsh chemicals like ammonia.

Can you use Magic Eraser on quartz?

Yes, Magic Eraser sponges can safely be used on quartz countertops if used gently and rinsed thoroughly after cleaning. Avoid excessive scrubbing pressure.

How do you get hardened adhesive off quartz?

Use a plastic putty knife to gently scrape off dried adhesive residue. You can also soften hardened adhesive with rubbing alcohol before scraping. Avoid metal scrapers or sharp objects.

Does quartz stain easily?

Quartz is non-porous and resistant to stains, but not stain-proof. Spills should be cleaned quickly to prevent possible discoloration. Avoid exposing quartz to strong chemicals.

Can you sand and polish quartz?

Light sanding and polishing can help minimize scratches and scuffs on quartz. Use fine grit sandpaper and quartz-specific compounds. Avoid aggressive sanding.


With the right techniques and products, many cosmetic and functional problems with quartz countertops can be repaired. Minor damage like scratches, stains, and chips can often be addressed at home. However, more significant issues like cracks and seam failure may require hiring a professional for the best results. With proper care and maintenance, quartz countertops can stay looking like new for many years. Regular cleaning, using the proper methods for stain removal, and taking care to avoid abrasions are the best ways to keep your quartz countertops in impeccable condition.