How-To Guide January 21, 2021 4 min read

The Best Way to Clean Windows

Over time, pollution and dirt slowly accumulate on windows — obstructing the view and blocking natural sunlight. The problem gets worse when improper cleaning leaves thick streaks behind. Here's the professional technique our team uses in Santa Barbara homes.

Step 1: Choose a Dry, Cloudy Day

This is one of the most overlooked tips. If you clean windows under direct hot sun, the cleaner dries on the warm glass before you can wipe it off — leaving stubborn streaks that are hard to remove. A cloudy day, or the shaded side of the house, is ideal.

"If the weather doesn't cooperate, start on the shaded side of the house and work your way around."

Step 2: Remove Dust and Loose Dirt First

Before applying any liquid cleaner, sweep the dirt from the frame using a dry brush or vacuum with a brush attachment. This is critical — if you skip this step, the loose dirt mixes with the cleaning solution and turns into a muddy mess that smears across the glass.

If the screen looks dirty, remove it and wash it separately with warm soapy water and a soft brush, then rinse and let it dry completely before reinstalling.

Pro Tip: Use one microfiber cloth for applying the cleaner and a separate dry one for buffing. This two-cloth method eliminates streaks almost entirely.

Step 3: Use Plenty of Cleaner

Don't be stingy with the cleaning solution. You need enough liquid to dissolve and suspend the dirt so it can be fully removed. If you use too little, the dirt redistributes and leaves streaks instead of being carried away on the cloth.

For very dirty windows, do a first pass with a damp cloth to remove most of the grime, then do a second pass with fresh cleaner for a streak-free finish.

Step 4: Use a Squeegee for Large Panes

A good rubber squeegee is the professional's tool of choice for large window panes. Spray generously, then pull the squeegee from top to bottom in a single, overlapping stroke. Wipe the blade clean between each stroke with a lint-free cloth.

Overlap each stroke by about 2 inches to avoid missing strips
Work from top to bottom — never side to side on large panes
Dry the edges with a clean, dry microfiber cloth

Step 5: Clean the Tracks and Frames

Don't forget the window tracks and frames — these collect a surprising amount of dust, dead insects, and debris. Use a stiff brush or old toothbrush to loosen the dirt from the tracks, then vacuum it out or wipe with a damp cloth. Clean frames with a mild all-purpose cleaner.

Step 6: Buff for a Streak-Free Finish

As a final step, buff the dry glass with a clean, dry microfiber cloth using circular motions. This removes any remaining haze and gives windows a brilliant, clear shine. Hold a flashlight at an angle to spot any missed streaks before you finish.

Too many windows? Let us handle it. Queen of Clean Service provides professional window washing as part of our cleaning packages. Get your free estimate today.