How to Repair Quartz Countertop Chips

Quartz countertops are durable and low-maintenance, but chips and cracks can still occur over time. Repairing quartz countertop chips may seem daunting, but it can be done with the right materials and techniques. Here is a step-by-step guide on how to repair quartz countertop chips yourself and restore your countertops’ smooth finish.

Assessing the Damage

The first step is to assess the chip and determine the best repair method. Small hairline cracks and minor chips less than 1/4 inch wide can often be repaired with a clear quartz filler resin. For larger chips wider than 1/4 inch or any chips with missing pieces, a more involved repair using color-matched caulk is needed.

Examine the chip carefully. Check the width, depth, and length of the damaged area. See if any pieces have chipped off completely, leaving a gap in the countertop. This assessment will dictate the repair materials and process required.

Gathering Supplies

For Small Chips

  • Clear quartz filler resin designed specifically for quartz repairs
  • Plastic putty knife or applicator
  • Sandpaper (220 to 400 grit)
  • Microfiber cloths
  • Tape (for masking)
  • Isopropyl alcohol
  • Acetone

For Larger Chips

  • Color-matched caulk (ask your quartz manufacturer for the exact color)
  • Caulk gun
  • Plastic putty knife
  • Sandpaper (220 to 400 grit)
  • Microfiber cloths
  • Tape (for masking)
  • Isopropyl alcohol
  • Acetone
  • Mixing sticks or paddle
  • Mixing container
  • Stirring rod
  • Gloves and eye protection

Repairing Small Chips

For minor chips without missing pieces, a clear quartz filler resin is the best option. Here is the repair process:

  1. Clean the damaged area with isopropyl alcohol to remove any dirt or debris. Let dry completely.
  2. Apply masking tape around the chip to protect the surrounding countertop area.
  3. Follow the filler resin instructions to mix the epoxy. Carefully fill the chip with the resin using the included applicator or a plastic putty knife.
  4. Let the filler resin cure completely, per the manufacturer’s directions. This usually takes about 30 minutes.
  5. Once cured, remove the tape and sand the repaired spot with 220 to 400 grit sandpaper until the filler is flush and smooth with the surrounding quartz.
  6. Use a microfiber cloth and acetone to remove any residue and buff the repaired area to restore the quartz’s shine.

Repairing Larger Chips

For chips larger than 1/4 inch across or with missing pieces, using color-matched caulk is needed for seamless repairs. Follow these steps:

  1. Clean out the damaged section thoroughly with isopropyl alcohol. Allow to dry fully.
  2. Mask off the area around the chip with tape to prevent messes.
  3. Mix a small amount of color-matched caulk per the manufacturer’s instructions. Adjust the color if needed by adding a dot of darker or lighter quartz-colored caulk.
  4. Fill the chip fully with the mixed caulk, using a putty knife to pack it into the space. Overfill slightly.
  5. Allow the caulk to partially cure based on the product directions, usually 30 minutes to an hour.
  6. Once partially set, use a fresh putty knife to scrape off any excess caulk until smooth and flush with the surrounding quartz.
  7. Allow the caulk to fully cure overnight before sanding and polishing.
  8. The next day, sand the area with 220 to 400 grit sandpaper until even with the countertop.
  9. Clean residue with acetone and microfiber cloths. Buff to restore the quartz’s luster.
  10. Repeat caulk application if needed to fill any remaining divots once sanded. Sand and polish again.

Preventing Future Damage

To help avoid more chips and cracks in your quartz countertops:

  • Use cutting boards and hot pads when preparing food. Never cut directly on the quartz.
  • Clean spills promptly to avoid moisture damage.
  • Avoid dropping heavy objects on the countertops.
  • Have your countertops resealed every 1-2 years by a pro.
  • Handle chemicals carefully and clean up any spills right away. Some cleaners can stain.

With the right supplies and techniques, you can repair quartz countertop chips yourself and have your counters looking like new again. Just be sure to take steps to protect your investment from additional damage in the future.

Frequently Asked Questions About Repairing Quartz Countertop Chips

Can I use regular caulk or epoxy instead of specific quartz repair products?

No, it’s important to use caulk and filler resin designed just for quartz. General construction adhesives likely won’t bond well or achieve the right color match. Opt for repair products formulated for quartz.

How long does the repair take to cure?

Most quartz filler resins cure in about 30 minutes. Caulk usually takes overnight to fully set. Follow each product’s instructions closely. Taking shortcuts could lead to a poor, unfinished repair.

Should I try to crazy glue a small chip back into place?

No, super glue and instant adhesives are not the right solution. They may not hold well. Opt for a quartz-specific filler resin that bonds securely inside the damaged area for more durable repairs.

Can I sand and polish a chip to make it less noticeable instead?

For hairline cracks or minor chips, light sanding and buffing can help reduce visibility. But for larger, deeper damages, the chip needs to be fully filled in for best results. Sanding alone leaves indentations.

How do I determine the right caulk color for my quartz?

Contact your quartz manufacturer for the specific color code or name. Bring this info to the store when purchasing caulk. Test your match on an inconspicuous corner first before repairing the actual chip.


Quartz countertop chips and cracks are common, but with a few inexpensive supplies and some easy DIY steps, you can often repair the damage yourself. Carefully assess the chip, gather the right materials for the size and type of damage, and take time to clean, fill, cure, sand and polish the area for minimal visibility. Pay attention to using specialty quartz repair products for reliable adhesion and seamless color-matching. With a little patience and effort, you can have your damaged quartz countertops looking flawless again.