How to Clean Windows and Window Screens

To clean windows without streaks, dust the glass first, then wash top to bottom with a film-free cleaner — ammonia- or alcohol-based glass cleaner, 50/50 white vinegar and water, or plain soapy water — applied generously so it does not dry mid-wipe. Finish with a squeegee or lint-free cloth. For screens, vacuum both sides, wash in soapy water, rinse, and dry before reinstalling. Most home windows are a straightforward DIY; leave high or fragile glass to pros if you are not comfortable on a ladder.

Why wash windows and screens regularly

• Pollen packs into screens and can worsen allergy symptoms indoors.
• Clean glass lets in more daylight and can help winter rooms feel warmer.
• Grit left on glass scratches over time when wind or wipers grind it in.

Supplies checklist

• Indoor glass: vinegar solution or glass cleaner, microfiber cloths, towels for sills, squeegee, optional newspaper for buffing
• Outdoor glass: ladder or telescopic mop, hot soapy water or vinegar mix, rinse water, squeegee
• Screens: vacuum hose, soapy water, large sponge, low-pressure rinse, towels
• Car glass: same outdoor method outside; damp cloth + vinegar mix inside (never soak electronics)

Streak-free window method

1. Choose a film-free cleaner. Never mix ammonia cleaners with bleach.
2. Dust dry first with a microfiber cloth so grit does not scratch.
3. Wash top to bottom with enough liquid that the glass stays wet until you squeegee.
4. Lift stubborn marks with a little isopropyl alcohol on a cloth — not a razor on tempered or coated glass.
5. Squeegee or wipe with a lint-free cloth; buff edges with newspaper or a dry microfiber. Test newspaper ink first so it does not smear.

Lay old towels along indoor sills to catch drips. For other glass around the house, the same habits help with mirrors and a glass-top stove.

Vinegar window cleaner

Mix 50/50 hot water and white vinegar for a bucket or sponge. In a spray bottle, use about 1:2 vinegar to water — strong vinegar can corrode sprayer parts over time; rinse the bottle after use. Skip vinegar on leaded or stained glass and avoid soaking old window seals.

How to clean window screens

1. Remove screens when you can.
2. Vacuum both sides.
3. Soak 10–15 minutes in hot soapy water, or scrub both sides with a large sponge.
4. Rinse with a cloth or low-pressure hose (high pressure can push mesh out of the frame).
5. Dry with a towel before reinstalling.

For a light refresh in place, a lint roller or vacuum attachment helps. Upper-floor screens you cannot remove need a hose or extending brush. Keep going with blinds and shades.

Exterior windows

Best timing is when screens are already out. Dust first, then wash top to bottom with vinegar mix or hot soapy water. A telescopic mop reaches high glass without leaning from a ladder — if you use a ladder, climb down to move it rather than stretching sideways. Squeegee or rinse, then dry edges so mineral water does not spot.

Car windows

Exterior: same outdoor method or a car wash. Interior: dry-wipe dust and fingerprints, mist vinegar solution onto a cloth (not the glass if you risk dripping into vents), wipe, then buff dry. Skip harsh ammonia or bleach cleaners in a closed cabin where fumes concentrate.

Squeegee tips

• Straight overlapping pulls from top to bottom clear soap fastest.
• Keep the rubber clean and straight; replace wavy blades.
• Light pressure — the blade should glide.
• Same tool works on shower doors, tile walls, and mirrors.

Frequently asked questions

Can dirt scratch glass?
Yes, especially gritty particles. Dust first, then wash regularly.

How do I tell which side a streak is on?
Wash one side with vertical strokes and the other with horizontal. The streak direction tells you the side.

Can I wash screens without removing them?
Yes, but flat washing after removal cleans far better.

What about hard-water spots?
Mineral scale often needs a lime-and-calcium remover labeled safe for glass; soap alone will not lift it.

Clean glass and screens make rooms brighter and healthier. If multi-story exteriors are not your idea of a weekend, Pro Housekeepers’ regular cleaning and deep cleaning crews can include interior glass while you handle or hire exterior work separately.