The First Step to Streak-Free Shine
Start with frames, rebates and the sill. Carefully remove loose dirt with a suitable soft brush or vacuum attachment so it does not return to the pane. Do not scrub dusty or gritty glass dry; clean glass and coatings according to their care instructions.
Check your tools and glass type
Prepare a clean bucket, soft lint-free cloths and a squeegee with an undamaged blade. Use a cleaner approved for the glass at its stated dose. Follow manufacturer guidance for coated glass, films and special frames. Do not mix products or improvise vinegar-and-alcohol recipes.
Further reading
The Technique: How to Wipe Correctly
Technique is the key to streak-free windows. Always start from top to bottom. Dip your cloth or sponge into the cleaning solution and thoroughly wipe the entire window pane to loosen the dirt.
If you're using a squeegee, start at the top left and pull it down in overlapping S-motions or straight lines. Wipe the squeegee's rubber blade with a clean cloth after each stroke to prevent streaks.
Work quickly so that the cleaning solution doesn't dry on the pane.
Dry the edges and check for streaks
Dry edges with a clean absorbent cloth and replace it when wet or dirty. If streaks remain, check detergent quantity, water and the squeegee blade before cleaning again. Newspaper is not needed.
When Is the Best Time to Clean Windows?
The perfect time is a cloudy, calm day. Direct sunlight causes the cleaning water to dry too quickly, leaving unsightly streaks. Cleaning is also difficult when it's freezing, as the water can freeze.
Take the opportunity to clean your windows when the weather cooperates, and enjoy the clear view.
Agree safe access and scope first
Clean only surfaces reachable from a safe position. Do not lean out of windows or stand on furniture. Work at height and specialist exterior cleaning need an appropriate contractor. PUTZIO has no dedicated specialist window service; discuss accessible glass as a priority within apartment cleaning beforehand.
PUTZIO offers routine apartment cleaning at CHF 40 per hour in supported municipalities. The cleaner brings cleaning products at no extra charge; you provide a vacuum cleaner, mop and bucket when needed. Agree on the priority tasks for the time booked.