Streak-free window cleaning across Southern Maine
Hand-washed glass, frames, and sills on every visit. Residential and commercial.
We answer fast, show up when we say, and leave every pane spotless.
- Residential & commercial
- 3-in-1: glass, frames, sills
- Insured & bonded
Homeowners on the coast trust us with the outside of their home.
Looking for window cleaning in Southern Maine or the NH Seacoast?
Coastal Cleaners is a locally owned exterior cleaning company serving homeowners and businesses from Portland and Casco Bay down through York, and across the New Hampshire Seacoast.
We do one thing differently: we treat your home like it’s our own. That means the glass, the frames, and the sills get cleaned on every visit, not just a quick pass on the panes.
Whether it’s a seaside home covered in salt spray or a storefront that needs to look sharp, you get streak-free results and a crew that actually shows up.
What You Get Working With Us
- Glass, hand-scrubbed and squeegeed, or pure-water rinsed on higher panes, until it’s streak-free
- Frames, wiped down inside and out, no grime line left behind
- Sills, detailed and dried, so the dust, pollen, and salt residue are gone before we leave
- Residential, commercial, and high-rise. Interior windows hand-detailed with shoe covers on, every time.
Six ways we keep your home looking new.
We answer and show up
No ghosting after the quote, no no-shows. You get a text before we arrive, every time.
5.0 on Google, and real
More five-star reviews than most cleaners on the coast. Every single one is five stars.
As seen on WGME 13
Featured on Channel 13 for raising the standard for exterior cleaning in Maine.
The difference is in the algae and mildew buildup.
Coastal homes pick up algae, mildew, and a little salt over the year. Our soft-wash process lifts it all without damaging stain, paint, or plantings, and the difference is immediate.
- Algae & mildew treated
- Salt and grime lifted
- Color restored, paint looks years younger
How It Works
2. We Come See It
A free, on-site estimate within three days, with a fair flat-rate price.
3. We Make It Shine
Streak-free windows, cleaned start to finish, done right the first time.
Proudly serving Southern Maine's premier communities
We specialize in premium exterior cleaning across the Southern Maine coast, with a focus on these communities:
- Cape Elizabeth, ME — Streak-free windows and gentle soft-washing for the coast's most prestigious homes
- Falmouth, ME — High-end window and house washing that protects Casco Bay properties from salt and algae
- Portland, ME — Residential and commercial window cleaning across the city's neighborhoods
- South Portland, ME — Reliable, on-time exterior cleaning for busy coastal households
- Kennebunkport, ME — Salt-spray window care and recurring plans built for oceanfront estates
- Scarborough, ME — Modern soft-wash and window service for growing coastal families
- Ogunquit, ME — Seasonal-home window and exterior cleaning kept show-ready
Questions homeowners ask us
Question: Are you insured?
Answer: Yes, fully insured and locally owned. We’re happy to send proof before we start.
Question: When can you come out?
Answer: We respond the same day and schedule your free on-site estimate within three days.
Question: How much does it cost?
Answer: Every home is different, so we give you a fair flat-rate quote after we see it. No surprises, no upsells on the day.
Question: Do you clean commercial windows?
Answer: Yes. Storefronts, offices, and high-rise, in addition to homes.
Question: What areas do you serve?
Answer: All of Southern Maine and the New Hampshire Seacoast, from Portland to Portsmouth.
Set it once. We'll be back every season.
A recurring plan means clean windows in spring, soft-wash siding before summer, gutters before the fall storms, and a salt rinse after winter. Priority scheduling and 10% off everything we do.
4 visits / year
on the seasonal plan
Priority scheduling
storm-season first
10% off add-ons
any extra service
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