How to Repair Chipped Quartz Countertops

Quartz countertops are a popular choice for many homeowners due to their durability, stylish appearance, and ease of maintenance. However, like any solid surface, they can become damaged over time, especially around the edges and corners. Chips and cracks in a quartz countertop not only detract from its aesthetic appeal but can also allow moisture and bacteria to seep in, leading to more extensive damage. Fortunately, it is possible to repair minor chips and prevent further chipping with some simple DIY techniques.

What Causes Chips in Quartz Countertops?

There are a few common causes of chips and cracks in quartz countertops:

  • Impact damage – Dropping heavy objects like pots, pans, or appliances can easily chip the edges or corners of the countertop. Impacts from bumping into the counter can also cause chips over time.
  • Thermal shock – Exposing the quartz to extreme temperature changes, like setting hot pans directly on the surface, can cause the material to expand and contract too quickly, resulting in cracks and chips.
  • Improper installation – If the countertop is not fully supported underneath, it may crack or chip under pressure or impact. Poor seams between slabs during installation can also lead to future chipping.
  • Settling – Normal settling of the home over time may cause stress points and hairline cracks that can turn into chips.

Repairing Small Chips and Cracks

For minor chips less than 1/4 inch deep, you likely can repair them yourself without having to replace the whole slab. Here are a few effective DIY methods:

1. Sand and polish the chip

Using incrementally higher grit sandpaper, gently smooth and round out the chipped area so there are no sharp edges. Finish by polishing the sanded spot with quartz polish or buffing cream until it blends with the surrounding material. This works best for hairline cracks and very shallow chips.

2. Fill with epoxy resin

Two-part epoxy resin formulated for quartz can be tinted and poured directly into larger chips and cracks to mound and smooth over the damaged area. Allow the resin to fully cure overnight before sanding and polishing to blend into the counter.

3. Fill with color-matched caulk

For small chips near the counter’s edge, use a caulk that is designed for quartz and matches the color of your countertop. Fill in the chip according to the caulk manufacturer’s directions. Allow to fully cure before smoothing over the area with a damp sponge.

Preventing Further Chipping

To help avoid more chipping or cracks after repairing the existing damage, implement some preventative measures:

  • Use cutting boards and hot pads when prepping food or placing hot items on the quartz.
  • Avoid dropping kitchen tools, appliances, or cookware on the surface.
  • Install a sink grid or removable drainboard in the sink to prevent metal pans from resting directly on the quartz.
  • Seal the counter once per year with a penetrating quartz sealer to add an extra protective layer.
  • Inspect the caulk lines regularly and re-apply caulk when needed to avoid moisture issues.
  • Support overhangs when additional weight is applied, like when a child sits on a breakfast bar.

When to Call a Professional

If a chip or crack exceeds 1/4 inch deep or a few inches long, it likely requires professional repair:

  • Filling larger chips often requires cutting out and patching the damaged section with new quartz material.
  • Cracks extending across seams or multiple slabs indicates a bonding failure that needs structural repair.
  • Extensive damage like multiple chips or cracks may call for a full replacement instead of repair.

Consult a certified quartz fabricator or installer to assess significant damage and provide expert repair to restore structural integrity and appearance. Expect to pay $100-500 for professional chip repair depending on scope.

With proper care and regular maintenance, most quartz countertops can remain chip and crack-free for many years before needing professional repair. But even small chips and damage can be eyesores, so address them promptly with these DIY techniques to keep your counters looking their best.

Frequently Asked Questions

How can I tell if a chip or crack requires professional repair?

Chips or cracks wider than 1/4 inch, longer than a few inches, that cross seams between slabs, or cover a large area likely require professional repair beyond basic DIY methods. Extensive chipping may need a full replacement.

Does quartz chip more easily than other countertop materials?

Quartz is actually less prone to chipping than materials like granite or marble because it is engineered from natural stone and resins. However, it can still become damaged from impact, heat, and improper installation like any solid surface.

What is the best way to prevent chips when cutting on quartz counters?

Always use a cutting board to protect the surface. Wood, plastic, or rubber boards are ideal. Avoid cutting directly on the quartz. Also take care to not drop sharp knives or kitchen tools on the countertop.

Can I use any caulk to fill chips near the edges?

No, you must use a caulk designed for quartz countertops, usually a silicone blend. Standard caulks can discolor or damage the quartz material. Ensure it matches your countertop color.

How long does professional chip repair typically take?

For smaller repairs, a pro can often complete the work in just a few hours. Larger repairs or full replacements may require templating and fabricating the new materials offsite, so can take 1-2 weeks total.


Minor chips and cracks in quartz counters may seem inevitable after years of use, but many can be repaired DIY with careful sanding, filling, and polishing. For deep cracks or extensive damage, rely on a professional to properly restore your countertop appearance and function. With some preventative care and prompt repair of any chips, you can keep your beautiful quartz counters looking flawless.