How to Fix Scratch on a Quartz Countertop: From Light Scuffs to Deep Gouges

A scratch on a quartz countertop has a way of catching your eye every single time you walk past it, but most quartz scratch repair jobs are well within reach for a careful homeowner.

At Granite Selection, we’ve installed quartz countertops across the Chicago area for 20+ years. This guide covers how to fix scratches on quartz based on their depth, and when replacing the slab makes more sense.

Do Quartz Countertops Scratch, and What Causes It?

Quartz countertops are engineered from approximately 90 to 95% ground quartz mineral mixed with resins and pigments, and it’s that resin layer where most surface scratches actually occur. Quartz counters are often marketed as scratch-resistant. However, it is not as highly resistant to scratches as you may believe. It is true that quartz countertops are not as easy to scratch, but with enough force, scratches can appear.

Most quartz countertop scratches come from a handful of predictable sources:

• Sharp utensils and knives: Cutting directly on the surface without a board is the most common cause of visible scratches on quartz.
• Dragging appliances or cookware: Rough-bottomed objects pulled across the countertop leave linear scuffs and deeper gouges.
• Metal marks from pots and pans: These often look like scratches but are actually metal deposits left on the resin surface, which can be removed rather than repaired.
• Abrasive cleaning tools: Steel wool and rough scrubbing pads gradually wear down the resin layer over time.

Before You Repair a Scratch on Your Quartz Countertop

A few minutes of preparation upfront prevents a lot of frustration and keeps your warranty intact.

Check Your Warranty First

One of the first and most important is to check the terms of your warranty. Some procedures that may be part of the repair might void your warranty. If sanding or grinding is involved and your warranty is still active, contact the manufacturer before doing anything.

Prepare the Work Area

After reviewing your warranty, make sure you have a safe working area by clearing off any containers or utensils from the quartz countertop. Wipe the surface with a cloth dampened with mild soapy water and let it dry fully before you assess the damage.

Assess the Damage

Once cleaned, assess the severity of the scratch and look for any other types of damage on the quartz countertops. Run a fingernail gently across the scratch: if it catches in the groove, the damage is deep enough to need filler, not just polish. If the job seems more than you can handle, seek professional help.

Materials and Tools

Gather everything before you start. Safety is our main priority. Make sure you have safety goggles, working gloves, and a facemask handy. You will be handling potentially dangerous chemicals to fix scratches, so make sure to protect yourself.

Beyond safety gear, what you need depends on the scratch type:

• Speed grinder or drill with buffing pad: Used for polishing light scratches and finishing the surface after filler cures on deeper ones.
• Quartz-formulated polishing compound: General stone polish isn’t always effective on engineered surfaces, so check the label.
• Resin or epoxy filler: For more serious damage, use a clear filler designed for quartz, or a color-matched version if your manufacturer offers one.
• Razor blade: To scrape the excess filler level with the surrounding surface after curing.
• Microfiber cloths: For cleaning between steps and wiping away residue.

How to Remove Surface Scuffs and Metal Marks

Scuffs and metal marks are the most common quartz complaints, and the easiest to address. Many of what homeowners call scratches are actually metal deposits from pots or cutlery left on the resin surface rather than cuts into it.

1. Wet a soft sponge or white cloth and apply a small amount of a non-abrasive cleanser like Soft Scrub or Bar Keepers Friend Liquid.
2. Work the cleanser into the mark in circular motions with light pressure.
3. Rinse with a clean damp cloth and check if the mark is gone. Repeat if needed.
4. For stubborn marks, a Magic Eraser can help. Use it sparingly, as frequent use gradually dulls the finish.
5. Finish with a quartz-specific polish like Novus #2 applied with a soft cloth to restore a clean, even surface.

Note: Avoid anything gritty or bleach-based. These can damage the resin finish rather than improve it.

How to Fix Light Scratches on Quartz Countertops

Light scratches that don’t catch a fingernail can usually be buffed out at home. The good news is that most small scratches caused by regular use can be buffed off.

1. Clean the scratched area with mild soapy water and dry it thoroughly before applying anything.
2. The best way to go is to look for quartz-formulated buffing or polishing compounds. Choose one made specifically for engineered stone surfaces.
3. You would then want to apply a half dollar size of the polishing compound on the area being repaired.
4. Make sure you attach the buffing pad securely to the grinder. The recommended speed is at 2800 RPM.
5. You would want to make sure that you only apply light and even pressure while buffing. Remember that your quartz countertop is partly resin. Prolonged hard and heavy buffing might actually cause the resin to melt.
6. Start from the lowest grade of polish, and then work your way up. Make sure that you remove any residue of the polish and replace pads before moving to a higher grade.
7. After completing the task, wipe off any compound on the surface, and admire your work.

Regular quartz countertop polishing between repairs keeps the surface looking consistent and slows the buildup of minor marks.

How to Fix Deep Scratches on Quartz Countertops

Deep scratches catch a fingernail when you run it across the surface. Polishing alone won’t resolve these; the two main approaches are diamond polishing pads or an epoxy/resin filler, and which one to use depends on your countertop’s finish.

Option 1: Diamond Polishing Pads

This method works best on matte or honed finishes, where matching the gloss level exactly is less of a concern.

1. Wet both the surface and the pad before starting. Never use diamond pads dry on quartz.
2. Start at 500 grit and work in slow, consistent circular motions over and around the scratch.
3. Work up through 1,000 grit and then 1,500 or higher, rinsing the surface between each stage.
4. Finish by polishing the repaired area with a quartz-formulated compound to restore an even surface sheen.

Option 2: Epoxy or Resin Filler

Similar to buffing, make sure the area is cleared off of any items and wiped clean with soap water. Take a few moments to assess the depth of the scratches. While you’re at it, make sure to inspect the rest of the countertop to look for other scratches you might not have noticed before.

1. Next, make sure the resin filler or epoxy filler you will be using is suited for your type of quartz countertop. The best way to do this is to check with your manufacturer. There are also colored fillers in the market. The thing is, you will need to perfectly match the color of your countertop to ensure a job well done. A mismatched filler might actually make the scratch stand out even more.
2. Apply the filler carefully into the scratch using a small applicator or toothpick, making sure the groove is filled completely.
3. Fill the scratches with epoxy or resin and allow the filler to stand for 24 hours. Some manufacturers might require more time to set, so make sure you check.
4. Once set, scrape off the excess so that the filled portion matches the level of the surrounding area. Use a razor blade and gently graze the surface at an approach angle of 45 degrees. Wipe off any loose material and admire your work!

If the countertop also has chipping around the damaged area, fixing a chip in quartz follows a similar process but has a few extra steps.

Repair or Replace? When New Countertops Make More Sense.

Knowing how to fix a scratch in a quartz countertop is useful, but at some point the cost and time of repeated repairs outweigh keeping an aging slab.

Signs it’s time for new countertops:

• Extensive surface damage: When scratches, chips, and worn patches are spread across most of the slab, spot repairs won’t make the surface look cohesive again; replacing your countertops becomes the more practical option at that point.
• Repairs that don’t hold: If fillers and polish keep failing in the same areas, the resin layer may be too compromised for effective surface repair.
• Structural or seam issues: Damage that goes beyond the surface, like cracks or shifting seams, is better addressed with a new installation.
• Style no longer works: If you’ve been considering an update anyway, a scratched surface is a reasonable tipping point, especially when quartz countertop costs are already part of the conversation.

Note: Get a professional repair estimate and a replacement quote at the same time. For heavily damaged slabs, the numbers often favor replacement.

Tips to Prevent Scratches on Quartz Countertops

The best quartz scratch repair is the one you never have to make. A few consistent habits protect the surface far better than any polish or filler.

There are a few steps you can take to prevent scratches from forming in the first place:

• Cutting board: Always use one, even for tasks that seem harmless. Even a butter knife can leave marks on quartz if used directly on the surface.
• Coasters and trivets: Place them under drinks, hot pots, and pans to reduce both scratch risk and heat damage.
• No abrasive cleaners: Steel wool and rough scrubbing pads damage the resin layer gradually; stick to soft cloths and non-abrasive products.
• Lift, don’t drag: Always lift appliances and cookware when repositioning rather than sliding them across the surface.
• Regular maintenance: Consistent wiping keeps grit and debris from acting as abrasives during normal daily use.

When Repairs No Longer Cut It, Start Fresh with New Quartz

Most quartz scratches are fixable at home with the right products. When the damage is too deep or too widespread for repairs to hold, a new countertop is the more practical solution.

Granite Selection is a Chicago quartz countertops supplier with over 20 years of fabrication and installation experience, serving the greater Chicago area from Elk Grove Village. Call (888) 906 3317 or fill out our online form.