Windows and DoorsTinted glass windows and doors reduce glare and provide a layer of privacy in homes. But tinted glass surfaces are tricky because they are usually customized and installed with special-care instructions, so talk to your installer about cleaning and maintenance. It's best to test-clean a small section of window before continuing.For dirt and debris: Marvin Windows and Doors recommends cleaning from the top to the bottom with a water and soap solution. Immediately after, clean the surface with a microfiber cloth dipped in a mild window-washing solution. Remove the cleaning solution with a squeegee, taking care not to allow any metal surface of the cleaning equipment to touch the glass.Stay away from: Abrasive cleansers. Also, avoid cleaning tinted and coated glass surfaces in direct sunlight.