Windex is one of those products that ends up being used for just about everything. It’s easy, it’s familiar, and it works well on glass, so it’s not surprising that it gets pulled out for all kinds of quick cleanups around the house. But that go-to habit can backfire. The same ingredients that make it effective on windows, especially ammonia and alcohol, can be too harsh for many common surfaces.

There are quite a few everyday items that don’t respond well to it at all. In some cases, Windex can leave streaks or residue, but in others, it can cause long-term damage such as fading, cracking, or dulling. Here’s a closer look at what you might be cleaning with Windex that’s better off handled with something gentler.

Stainless Steel Appliances

Windex might remove fingerprints at first, but it often leaves streaks and can dull that clean, brushed finish over time. If you want that smooth, polished look, something like Weiman Stainless Steel Cleaner and Polish is designed to clean without leaving residue behind.

Wood Furniture and Surfaces

Wood finishes don’t hold up well against harsh cleaners. Windex can strip away protective layers like wax or polyurethane, leaving the surface dry and exposed. Over time, that can lead to fading or even warping. A product like Daily Wood Cleaner helps clean while preserving the finish.

Granite or Marble Countertops

Natural stone may seem durable, but it’s surprisingly sensitive. Windex can break down sealants and leave behind a cloudy film that dulls the surface. Using a pH-balanced cleaner such as Granite Gold Daily Cleaner will help maintain the stone’s natural shine.

Electronic Screens

Phones, TVs, and laptops have delicate coatings that can be damaged by harsh chemicals. Windex may cause streaking or even permanent clouding. A microfiber cloth paired with something like Screen Cleaner Kit is a much better option.

Leather Furniture

Leather needs moisture to stay soft and flexible, and Windex strips those natural oils away. That can lead to cracking and fading much sooner than expected. Using a conditioner-friendly cleaner like Leather Cleaner helps maintain its look and feel.

Laminate Countertops and Glass Stovetops

These surfaces can lose their shine or develop fine scratches when cleaned with harsh products. Windex may dull the finish over time. A cleaner like Cerama Bryte Cooktop Cleaner is formulated to protect while it cleans.

Copper and Brass

Windex doesn’t remove tarnish and can actually make discoloration worse on metals like copper and brass. It can also damage the natural patina. A product such as Wright’s Copper Cream is a much better fit for restoring shine.

Painted Walls

Especially on matte or low-sheen finishes, Windex can strip paint or leave uneven marks. A gentler solution like Mrs. Meyer’s Clean Day Multi-Surface Cleaner works better for spot cleaning without damaging the surface.

Jewelry

Delicate metals and stones don’t hold up well to harsh chemicals. Windex can dull finishes or damage softer gemstones. A mild cleaner such as Brilliant Jewelry Cleaner is a safer way to keep pieces looking their best.