How to Clean Window Tracks, Step by Step

Vacuum out the loose dirt, soak and scrub what’s packed in with warm, soapy water and an old toothbrush, then wipe the track dry and make sure the weep holes drain. Do it in spring and fall, and your windows keep sliding smoothly.

What you need

A vacuum with a crevice tool
An old toothbrush or a small detail brush
A spray bottle of warm water with a few drops of dish soap
Paper towels or rags, and cotton swabs for the corners
A pipe cleaner for the weep holes

How to clean window tracks, step by step

Open the window all the way. On a slider, open it fully to clean one end of the track, then close it to reach the other. Lay a towel under the sill.
Brush and vacuum the loose dirt. Sweep the dust, dead bugs and fluff loose with the dry brush, then vacuum it up, so it doesn’t turn to mud in the next step.
Spray and let it soak. Spray the track with the soapy water and give it about five minutes to soften the grime. For chalky white crust from sprinklers, use equal parts white vinegar and warm water instead. For the worst buildup, sprinkle in a little baking soda first, then spray the vinegar mix and let it fizz.
Scrub the channels and corners. Run the toothbrush along each channel. For the corners, use a cotton swab or a damp paper towel wrapped around a butter knife.
Wipe it out. Wipe out the loosened dirt, then go over the track with a damp cloth until the cloth comes back clean.
Test the drain. Pour a little water into the track and check that it runs out. If it just sits there, the weep holes need clearing (see below).
Dry it and try it. Dry the track, then open and close the window a few times. It should glide without grinding.

What are weep holes, and how do you clear them?

Weep holes are small slots along the bottom of the window frame, usually on the outside, sometimes behind a little flap. They let rain, snowmelt and sprinkler water drain out of the track.

When dirt clogs them, water sits in the track, turns the dust to mud, and on a cold Treasure Valley night it can freeze there. To clear one, gently push a pipe cleaner or a thin, soft brush into the slot and wiggle it, then pour a little water into the track and watch it run out. Don’t jam a nail or a screwdriver in there, and never caulk weep holes shut. They’re supposed to stay open.

What not to use on window tracks

No pressure washer or hard hose spray. High pressure can push water behind the frame, into places that are slow to dry. It’s one reason we clean every window by hand.
No steel wool, scouring pads or metal scrapers. They scratch vinyl and aluminum, and scratches hold onto dirt.
No oil or grease. They feel slick for a day, then hold onto every bit of dust that blows in. If a clean track still drags, a light coat of dry silicone spray is the usual fix. Check your window maker’s care guide first.
Vinegar on stone sills. Vinegar can damage natural stone and some finishes, so use plain soapy water there.

Why window tracks get so dirty in the Treasure Valley

Dust and wind. Dry summers, open fields and all the building around the valley keep dust in the air, and tracks are where it settles. Homes near the foothills and farm ground get even more.
Cottonwood fluff. In late spring, homes near the Boise River get fluff from the cottonwoods, and it mats into screens and settles in tracks.
Sprinklers. Irrigation water that hits the glass runs down into the track and dries there, leaving a chalky mineral crust mixed with dirt. Here’s how to deal with hard water spots on the glass.
Construction dust. New homes often come with dust packed into the tracks. More in our guide to windows in a new build.
Snow and ice. Snowmelt off the sills runs into the tracks, and if the weep holes are clogged, it stays there.

How often should you clean window tracks?

At least twice a year for most homes: in spring, after the cottonwood fluff settles, and in fall, before the first hard freeze, so the weep holes are clear when the snow comes. Homes near fields, construction or the foothills may need it more often. The easy rule: do the tracks whenever the windows get cleaned, while the screens are out. Here’s how often to clean your windows in Boise.

Do sliding door tracks clean the same way?

Yes, with the same steps. Patio door tracks collect more, though. Shoes, pets and grit from the yard all end up in them, so vacuum them more often than your windows. When a slider starts to drag, check the track first.

Why does my window still stick after cleaning the track?

If a clean, dry track still drags, the cause may be worn rollers, a bent track or a sash that’s out of line. That’s a job for a window installer, not a window cleaner. We clean tracks; we don’t repair windows.

What our track detailing add-on covers

Every outside window cleaning we do includes the glass, frames and sills, and we take every screen off and put it back. Track detailing is an add-on that goes after the dirt packed down in the tracks:

By hand, corner to corner. We scrub the channels and corners with specialized tools and vacuum the dirt out.
Windows and sliders. We can do the tracks on every window and sliding door.
Same visit as your windows. Add it to your window cleaning and everything gets done in one trip. Track detailing for a whole house typically takes a couple of hours, depending on how many windows you have and how dirty the tracks are.
Pairs well with screen cleaning. Add screen cleaning on our XERO machine, so dusty screens don’t drop their dirt right back into clean tracks.

We recommend track detailing at least twice a year, and most customers add it to their regular window cleaning.

“Absolutely wonderful service! Great job, the windows are crystal clear and it doesn't even look there's a window there! The screens and tracks are spotless. Quick and neat at a good price. Our house has so many windows and they all look great!”

Nancy M. · Google review

Rather hand it off?

Cleaning tracks is a fine Saturday job for a few windows. For a whole house of packed tracks, let us take it. Get a free quote and add track detailing, or call or text (208) 484-5207, Monday through Saturday, 8am to 7pm. We clean windows and tracks in Boise, Meridian, Eagle, Nampa and across the Treasure Valley.