Professional window cleaning · Flathead Valley, Montana
Streak-free windows, hand-detailed — for homes and businesses across Kalispell, Whitefish, Columbia Falls, and Bigfork.
“Work Done Well, Work Done Right.”
01What we do
Four ways we work — one standard. Hand-detailed glass, careful prep, and a walk-through before we leave.
More than spraying glass and walking away — we hand-detail every pane, work the corners where dust collects, vacuum out tracks, and wipe down the sills. Glass you can actually see through.
Fresh-build glass comes covered in stucco bleed, paint overspray, drywall dust, and sticker adhesive. The wrong tools leave permanent scratches — we use the right ones, pane by pane.
Customers judge a business before they step inside — dirty glass is one of the loudest signals something’s off. We keep storefronts, offices, and multi-tenant buildings sharp, on a schedule built around your hours.
Everything else made of glass — or solar cells. Most of these bundle with a window cleaning visit so you only pay one trip charge.
Solar panel cleaning
Dust, pollen, and wildfire ash can cut output 5–25%. Purified-water rinse, panel by panel — no abrasives, no warranty risk.
Skylights
Roof-access skylight cleaning, hand-detailed. Often included when accessible during a full-home visit.
Chandeliers & high glass
Great-room fixtures, clerestory windows, and two-story stairwell glass — hand-cleaned, floors protected.
Screens, tracks & sills
Wiped down on every job at no extra charge. Screens come off, get hand-washed, and go back on.
Quoted per job — access and condition vary. Text a photo to (406) 607-2151 and we’ll price it.
02Where we work
Based in Kalispell, on the road everywhere else — with regular routes that keep scheduling fast and travel free.
Home base
The heart of our daily routes — from older homes around Main Street to new builds along the airport corridor.
Lake & resort
Lake homes, vacation rentals, and Big Mountain residences — careful around high-end finishes, scheduled around guest turnovers.
Lakefront
Flathead Lake’s most scenic shoreline — lake-spray mineral deposits, big picture windows, and seasonal-resident schedules.
Glacier gateway
On our weekly route — easy scheduling, no drive-time fees, and priority for tourist-season businesses in their peak months.
Lakeside, Somers, Evergreen, and everywhere in between. Travel anywhere in the valley is free — there’s no trip surcharge.
03Reviews
04Our work
Real clips from real jobs across the valley — tap any to play with sound.
05About
OCS LLC was built to run the way we’d want a company to treat us: one that picks up the phone, quotes a fair price and sticks to it, shows up when it says it will, and doesn’t upsell you on things you don’t need.
Window cleaning is a craft, and we take it seriously. OCS is owner-operated — the people who quote your job are the same ones on the ladder.
06Your quote
Answer a few quick questions about your home. Your range appears the moment you hit reveal — no waiting on a callback.
