Can You Use Windex on Quartz Countertops?

Using Windex on quartz countertops is often not recommended, as it can damage and dull the surface over time. However, with proper care and techniques, Windex can be used occasionally for cleaning quartz countertops without causing long-term issues.

What is Quartz?

Quartz countertops, sometimes called engineered stone, are made from ground quartz crystals combined with resins and pigments. This creates an extremely hard, non-porous surface that is resistant to scratches, stains and heat.

Some key properties of quartz countertops:

  • Much harder than natural stone like granite or marble
  • Non-porous so resists staining
  • Does not require regular sealing like natural stone
  • Resists scratches and is durable
  • Comes in wide range of colors and patterns
  • Lower maintenance than natural stone overall

Can You Use Windex on Quartz?

Windex is a common household cleaner that contains ammonia. The ammonia in Windex can potentially damage or etch quartz surfaces if used repeatedly over time.

However, occasional use of Windex will generally not harm quartz countertops, as long as proper care is taken:

  • Use Windex sparingly, not as everyday cleaner
  • Dilute with water, do not use full strength
  • Avoid scrubbing aggressively
  • Rinse thoroughly after cleaning
  • Reseal quartz yearly to protect surface

It’s best to stick to pH-neutral quartz-safe cleaners as regular maintenance. But Windex can be utilized occasionally if needed.

Best Practices for Using Windex on Quartz

If you do need to use Windex on your quartz countertops, follow these best practices:

  • Dilute Windex with water at 1:1 ratio to reduce potency
  • Spot test on small inconspicuous area first
  • Apply diluted Windex and wipe gently with soft cloth
  • Do not let Windex sit or soak on surface
  • Rinse thoroughly with clean water and dry area
  • Reseal quartz countertops regularly after deep cleaning
  • Limit Windex use to occasional/deep cleaning needs

Diluting Windex and rinsing it off thoroughly is key. This prevents the ammonia from damaging the quartz binders and top layer over time.

Quartz-Safe Cleaners

For routine cleaning and maintenance, use a pH-neutral quartz cleaner instead of Windex:

  • Mild dish soap and warm water
  • Stone soap or quartz cleaner
  • Hydrogen peroxide or vinegar solutions
  • Baby shampoo mixed with water

These options are safe for frequent use. Ensure to rinse quartz thoroughly after any cleaner.


  • Vinegar – can etch surface over time
  • Bleach – can discolor quartz
  • Abrasive cleaners – can scratch surface

Proper Quartz Maintenance

  • Clean spills quickly to prevent staining
  • Reseal quartz every 6-12 months
  • Use trivets and cutting boards to protect surface
  • Avoid placing hot pans directly on quartz

With proper maintenance, quartz countertops can stay looking like new for many years. An occasional use of diluted Windex will not damage the surface as long as it is thoroughly rinsed off. Stick to quartz-safe cleaners for daily cleaning.

Frequently Asked Questions

Can I use straight Windex on my quartz countertop?

It’s best to dilute Windex with equal parts water. Full strength Windex can potentially etch or damage quartz over time with repeated use.

What ratio should I dilute Windex?

Mix equal parts Windex and water – a 1:1 ratio is recommended. This significantly reduces the potency of the ammonia in Windex.

How often can Windex be used on quartz?

Limit Windex to occasional or deep cleaning use only. For routine daily maintenance, use a pH-neutral quartz-safe cleaner.

Is it okay if Windex sits on my quartz countertop?

No, you should wipe up and rinse off Windex immediately. Do not let it sit or soak on the quartz surface.

Do I need to reseal my quartz after using Windex?

It’s a good idea to reseal quartz countertops after any deep cleaning, including with Windex, to renew the protective layer. Reseal quartz every 6-12 months.

The Bottom Line

While Windex is not recommended for daily use on quartz countertops, it can be utilized occasionally if diluted and rinsed off thoroughly. Limit Windex to periodic deep cleaning needs. Stick to gentler, pH-balanced cleaners like dish soap for routine maintenance. With proper care, quartz countertops can retain their beauty for many years.