Can I Use Windex to Clean Quartz Countertops?

What is Quartz?

Quartz countertops, also known as engineered stone, are made from ground natural quartz crystals combined with resins and pigments. The quartz content typically ranges from 90-94%. The remaining 6-10% contains polymer resins and pigments that bind the quartz particles together.

The resins make quartz non-porous, stain-resistant, and durable. Quartz countertops are harder than granite but not as hard as natural diamond. The resins also allow quartz to be molded into different colors, patterns, and finishes.

Can You Use Windex on Quartz?

Windex is a popular household glass and surface cleaner found in many homes. It contains ammonia, ethanol, and other cleaning agents. Using Windex occasionally on quartz countertops is generally safe and effective.

However, regular use of Windex and similar ammonia or vinegar-based cleaners is not recommended. The acidic ingredients in these cleaners can damage the resin binders in quartz over time with frequent use.

Quartz manufacturers advise using only pH-neutral cleaners specifically formulated for stone surfaces. While an occasional Windex cleaning may not harm quartz, it’s best to use a quartz-approved cleaner as your daily or weekly cleaner.

Best Practices for Cleaning Quartz Countertops

Here are some tips for safely cleaning and caring for quartz countertops:

  • For routine cleaning, use a soft sponge or microfiber cloth with warm water and a small amount of mild soap. Avoid abrasive scrubbing.
  • For a deeper clean, use a quartz cleaner made specifically for stone surfaces no more than once a week. Popular brands include Granite Gold and Method.
  • Blot up spills immediately to prevent stains, especially oil, wine, and acidic liquids like lemon juice.
  • Avoid using bleach, ammonia, vinegar, abrasives, or alkaline/acidic cleaners which can etch quartz over time.
  • Reseal quartz every 1-2 years with a stone sealer to enhance stain protection.
  • Use trivets and hot pads under hot pots and pans to prevent thermal shock.

DIY Homemade Quartz Cleaner Recipes

You can make safe, effective DIY cleaners for quartz using mild ingredients like dish soap, olive oil, and essential oils:

Mix 1⁄4 cup mild dish soap with 3⁄4 cup warm water. Add 10 drops of lemon essential oil for natural degreasing power.

Mix 2 tbsp mild dish soap with 1⁄4 cup olive oil. The oil helps condition the surface. Shake well before use.

Mix 2 cups water, 1⁄4 cup isopropyl alcohol, and 2 drops essential oil. The alcohol helps sanitize.

How to Remove Dried Windex Residue from Quartz

If Windex dries on the surface, it can leave an unsightly hazy residue. Follow these steps to remove:

  1. Mix a solution of warm water and a few drops of mild dish soap.
  2. Dip a soft cloth into the solution and wring out excess liquid.
  3. Wipe the dried Windex residue gently with the damp cloth.
  4. Rinse the surface thoroughly with clean water and dry with a soft towel.
  5. For stubborn residue, repeat steps 2-4 using a non-abrasive Scotch-Brite pad.
  6. Buff dry with a microfiber cloth.

Can Quartz Countertops Stain from Windex?

Quartz is non-porous, so Windex cannot penetrate or stain the material. However, some quartz has microscopic pits and crevices that may trap residues over time with frequent use.

The ammonia and cleaning agents in Windex can also degrade the resin binders that give quartz its color if used excessively. So while an occasional Windex cleaning is fine, it’s ideal to use a specially formulated quartz cleaner.


While an occasional Windex cleaning won’t harm quartz countertops, it’s best to use a specially formulated quartz or stone cleaner for routine maintenance. Windex contains ammonia and acids that can degrade quartz over time. For best results, clean quartz daily with mild soap and water. Use a quartz cleaner weekly and reseal every 1-2 years. This prevents damage and keeps quartz countertops looking like new for years.

Frequently Asked Questions About Using Windex on Quartz Countertops

Can I use Windex daily on my quartz countertops?

No, you should avoid using Windex or any cleaner with ammonia or vinegar daily on quartz. The acids can slowly erode the resin binders. Opt for pH-neutral quartz-safe cleaners for daily cleaning.

What happens if Windex sits on quartz?

If left to dry, Windex can leave behind cloudy residues and film that dulls the surface. Wipe up Windex immediately to prevent this. Use a mild dish soap solution to remove dried Windex residue.

Is it OK to use Windex on engineered quartz?

Occasional use of Windex on engineered quartz is generally fine. But repeated use can damage the resin over time, so it’s ideal to use a cleaner made specifically for engineered stone.

Can quartz countertops stain permanently?

Quartz resists stains due to its non-porous nature. But oil-based stains can penetrate microscopic pits and discolor if not cleaned promptly. Avoid letting spills sit to prevent permanent staining.

What removes hard water stains from quartz?

Mix equal parts white vinegar and water to make an effective cleaner for hard water stains on quartz. Rinse thoroughly after cleaning. Avoid vinegar for daily cleaning.

Does Windex cause buildup on quartz?

Yes, the ammonia and cleaning agents in Windex can leave cloudy residues that build up over time. Always rinse thoroughly after using Windex on quartz to prevent this dulling buildup.

What is the best homemade quartz cleaner?

For a natural homemade quartz cleaner, mix dish soap, warm water, and a few drops of lemon essential oil. The dish soap cuts grease, while the lemon oil naturally disinfects and deodorizes.

Should I seal my quartz countertop after using Windex?

It’s a good idea to reseal your quartz counters every 1-2 years regardless of your cleaning method. Sealing helps repel stains. But you don’t need to seal quartz immediately after using Windex unless you notice etching.

What should I never use to clean quartz?

Avoid abrasive cleaners, alkaline or acidic cleaners, bleach, vinegar, ammonia, alcohol, and rough sponges. These can scratch, pit, and erode quartz over time. Always check that a cleaner is safe for quartz surfaces before use.


While an occasional Windex cleaning won’t harm quartz, it’s best to use a specially formulated quartz cleaner for routine maintenance. Windex contains ammonia that can build up over time and degrade the resins in quartz. For best results, use only pH-neutral cleaners made specifically for quartz and other engineered stone surfaces.