How to Fix Dull Spots on Quartz Countertops

Clean the Surface Thoroughly

The first step is to thoroughly clean the countertop to remove any dirt, grime, or residue that may be causing the dullness. Use a gentle non-abrasive cleaner or mild dish soap and warm water. Going over the surface with a soft cloth, sponge or non-abrasive scrub pad. Rinse well and dry completely with a soft towel. This deep clean will reveal the true extent of the dull spots.

Try a Restorative Cleaner

If regular cleaning doesn’t perk up the surface, reach for a quartz countertop restorative cleaner. These specialty cleaners contain ingredients like silicon dioxide and mineral oils that work to restore the sheen. Apply the product as directed, rubbing into dull areas. Allow it to sit for a few minutes before buffing with a soft cloth. Restore cleaners help fill in micro-scratches and surface irregularities that cause light reflection to scatter, resulting in a dull look.

Sand and Refinish Small Spots

For small localized dull spots that don’t respond to cleaning, light sanding and refinishing can work wonders. Here’s how to proceed:

  • Tape off the area around the dull spot to protect the surrounding surface.
  • Lightly sand the affected area using 400-600 grit sandpaper. Work in a circular motion.
  • Wipe away all sanding dust.
  • Apply a thin coat of quartz countertop polish to the sanded spot.
  • Buff to blend and restore shine. Remove tape.

This micro-sanding technique will remove the top layer of dullness. The quartz polish brings back the smooth factory finish.

Use a Quartz Color Enhancement Product

Quartz color enhancers are formulated to infuse pigment into the surface to boost color vibrancy. In the process, they can also help mitigate dull spots. Follow product directions to scrub the enhancer into lackluster areas, allow it to penetrate for 10-15 minutes, then buff off. These products produce permanent results, so only apply to isolated areas.

Consider Professional Resurfacing

For widespread dullness not solved by cleaning or DIY techniques, seek professional help. Quartz resurfacing and polishing pros have industrial tools and expertise to refresh your countertop. Companies can grind the surface using diamond abrasives to remove etching and pitting, then polish with specialty compounds to restore the glossy finish. This provides a like-new appearance.

Prevent Future Dullness

Once you’ve restored the luster to your quartz, be diligent about protecting it. Here are some tips:

  • Use cutting boards, trivets and hot pads to prevent scratches and burns that can lead to dull spots.
  • Clean up spills promptly to avoid possible etching.
  • Avoid using abrasive cleansers or scrub pads. Stick to soft cloths.
  • Reseal and polish periodically as preventive maintenance.

With the right care, your quartz countertops should maintain their luminous shine for years to come. But if dullness ever crops up again, you’ll know how to banish it for good.

Frequently Asked Questions About Fixing Dull Spots on Quartz Countertops

What causes dull spots on quartz?

Common causes of dull spots on quartz countertops include etching from acidic foods and cleaners, accumulated dirt and grime in porous areas, micro-scratches from utensils and abrasives, minor impact damage, and general wear and tear over time.

How can I make my dull quartz shine again?

Deep clean the surface, use a quartz restorative cleaner, sand and refinish small spots, apply a quartz color enhancer, or call in a pro to resurface the entire countertop. These techniques can restore lost luster.

What is the best cleaner for quartz countertops?

For routine cleaning, a mild pH-neutral cleaner or dish soap and water works best. For dull areas, use a specialty quartz restorative cleaner containing ingredients like silicon dioxide and mineral oil to enhance shine.

Can I use a magic eraser on quartz countertops?

Magic erasers have a fine abrasive surface, so it’s best to avoid using them. The abrasion can actually dull the finish over time or leave light scratches. Use a soft sponge or cloth instead.

Does sealing help restore shine to dull quartz?

Sealing alone doesn’t remove dullness, but it can help protect against further dulling. Consider applying a quartz countertop sealer after deep cleaning and refinishing dull spots. The sealer provides an added layer of protection.

How often should quartz countertops be polished?

For preventative maintenance, polishing quartz countertops every 1-2 years can help maintain the factory sheen. Polish brings back gloss while filling in micro-abrasions. Use polish in between deep cleaning or resurfacing to keep your countertops looking their best.


Quartz countertops are susceptible to loss of shine over time. But with the proper cleaning, refinishing, and polishing techniques, you can successfully remove dull spots and restore your countertops’ original luminous finish. Paying attention to preventative care will help minimize future dulling. With some periodic effort, the sparkling look of quartz can be maintained for many years of beauty and durability.