How to clean a bathroom mirror without ruining the coating
Standard window cleaners often leave streaks or fail to remove buildup completely, leaving people unsure of how to clean mirrors safely without risking damage to the surface. Without the right approach, cleaning efforts simply smear grime around instead of achieving a clear shine.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Using dish soap and a dish sponge with the abrasive side, then wiping with a couple of clean dry cloths
- 2Sprayway foaming glass cleaner with Costco yellow microfiber rags
- 3Hot vinegar method or a 50/50 water and vinegar mixture
- 4Acid-based cleaners
- 5CLR
- 6Straight razor blade
- 7Mirror cleaner instead of window cleaner
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
r/AskMechanics1 person · September 2026
“Hello, I’ve tried using window cleaner and nothing works. Perhaps I’m doing something wrong?”source ↗
SuspectOk2931 · r/AskMechanics
r/CleaningTips1 person · September 2026
“Used the usual mirror cleaner but is afraid to use any other solution as it may damage the mirror”source ↗
Calm-Ad2683 · r/CleaningTips
Where this came up
People with this problem also raised
- 3How to clear heavy bathroom steam without an exhaust fan
- 6How to clean bathroom floors without getting on the hands and knees
- 4How to clean decades of heavy buildup on bathroom hardware
- 2Shower finish peeling off when cleaning
- 4How to clean a really mouldy rental shower and fix the caulk
- 4How to clean the mold and gunk left under a removed shower door