Window Cleaning Charleston SC
Salt film, pollen, and humidity haze cloud Charleston windows year-round. We clean exterior windows on residential and commercial properties — streak-free, without leaving water marks or detergent residue.
Why Charleston Windows Need Professional Cleaning
Charleston’s coastal environment creates window fouling conditions that homeowners in most parts of the country don’t face. Salt spray from the harbor, Shem Creek, and barrier islands deposits a mineral film on glass that creates a hazy, milky appearance — especially on windows facing the water or prevailing sea wind. Salt film doesn’t wipe off with a paper towel; it requires the right chemistry and technique to dissolve the mineral deposit without streaking.
Spartina pollen season in spring coats window glass with a yellow-green sticky residue that bonds to the surface when it gets wet. Humidity-driven algae growth appears on window frames, screens, and sills. And the hard water from Charleston’s municipal supply leaves white calcium deposits on glass where sprinklers hit windows.
We clean exterior windows as a standalone service or as part of a full exterior cleaning visit combined with house washing or pressure washing. Interior window cleaning is available on request.
What We Clean
🏠 Residential Exterior Windows
All exterior glass surfaces on single and multi-story homes. Ground floor, second floor with extension equipment, and accessible upper-floor windows. Streak-free results every visit.
🏢 Commercial Windows
Storefronts, office buildings, restaurants, and retail on King Street and throughout Charleston’s commercial corridors. Scheduled cleaning programs available.
🪟 Window Frames & Sills
Window frames and sills cleaned alongside the glass. Mildew on vinyl and painted wood frames, calcium deposits on sills, and mold in frame corners all addressed during the cleaning visit.
🔲 Screens
Screened windows and screened porch panels cleaned gently. Charleston’s pollen and dust accumulate on screens and reduce visibility and airflow — we clean screens without damaging the mesh.
Exterior window cleaning typically runs $150–$350 depending on number of windows, stories, and accessibility.
(843) 268-6699 — written quote before work begins.
Window Cleaning FAQs
How often should I have my windows cleaned in Charleston?
Twice a year for most residential properties — once after spring pollen season and once in fall. Coastal properties near the harbor, Isle of Palms, or Sullivan’s Island may benefit from quarterly cleaning due to salt film accumulation.
Do you clean interior windows?
Interior window cleaning is available on request. Most customers start with exterior window cleaning only, then add interior for full clarity. Interior cleaning is scheduled as a separate visit or combined with exterior when timing allows.
Can you combine window cleaning with a house wash?
Yes — window frame cleaning and exterior glass cleaning is included in our standard house wash. Full detail window cleaning (glass, frames, sills, and screens) can be added to any service visit at a combined price.
How much does window cleaning cost in Charleston?
Exterior window cleaning typically runs $150–$350 for residential properties depending on the number of windows, stories, and accessibility. Commercial properties are quoted per building. Written quote before work begins.
Hard Water Stains on Charleston Windows
Hard water staining is a specific window problem that affects Charleston homes with irrigation systems pulling from wells or homes where sprinkler heads hit windows. Hard water contains dissolved calcium and magnesium minerals that deposit on glass when the water evaporates, leaving a white chalky or milky residue that can’t be removed with standard window cleaning methods or glass cleaner products.
Removing hard water deposits requires an acidic treatment to dissolve the mineral bond — the same reason lemon juice (citric acid) works on mineral deposits in faucets. We use professional-grade mineral deposit removers on windows showing hard water staining, applied before the standard window cleaning pass. Heavily calcified windows that have been neglected for years may require multiple treatments or mechanical spot work.
If irrigation sprinklers are hitting your windows, hard water staining will recur regardless of how often you clean. Adjusting sprinkler head angles is the only permanent solution.
Window Cleaning for Vacation Rentals on Isle of Palms & Folly Beach
Charleston’s barrier island vacation rental market is intensely competitive — ocean-view properties command premium nightly rates, and guest reviews directly drive repeat bookings and pricing power. Dirty windows that obstruct the ocean view, or foggy glass that makes a beach house feel uncared-for, are the kind of detail that guests mention in reviews and that photos show instantly.
Vacation rental owners on Isle of Palms, Sullivan’s Island, and Folly Beach typically schedule exterior window cleaning 2–4 times per year — before the start of rental season in spring, mid-summer for high season, and after hurricane season in fall. Salt film accumulation is faster on barrier island properties than anywhere else in the Charleston area, so the cleaning frequency is higher.
We coordinate with property managers and rental calendars to schedule cleaning during turnover gaps or low-occupancy periods. Before-and-after photos are provided for every visit as part of your property maintenance records.
More Window Cleaning Questions
Why do my windows look cloudy even after cleaning?
If the cloudiness persists after professional cleaning and isn’t on the surface, the glass seal may have failed — you’re seeing moisture trapped between double-pane glass layers (called “fogged” or “failed IGU”). This is a glazing issue, not a cleaning issue, and requires glass unit replacement. We can tell you during a visit whether the haze is surface contamination we can remove or failed glass seal we can’t.
Will window cleaning remove salt film from coastal windows?
Yes — salt film is one of the most common window issues we address on coastal properties. The mineral deposit from salt spray requires appropriate cleaning chemistry to dissolve before the glass can be properly cleaned. Standard squeegee cleaning without pre-treatment on salt-filmed glass just smears the deposit around.
Do you clean skylights?
Yes — skylights accumulate the same algae and pollen film as roof surfaces, but on glass rather than shingles. Exterior skylight cleaning requires safe roof access and appropriate equipment. We assess skylight accessibility during the walk-through and confirm it’s within our scope before including it in the quote.
How do you clean windows on a two or three-story home?
We use water-fed pole systems with purified water for upper story exterior windows — an extension pole with a soft brush delivers purified (deionized) water to the glass, which leaves no mineral deposits when it dries. This method is safer than ladder work and consistently produces streak-free results on second and third-floor windows.
How long do clean windows stay clean in Charleston?
For inland Charleston properties: 3–6 months before noticeable pollen or environmental buildup. For coastal barrier island properties: 2–3 months given salt spray accumulation. After a direct storm event, even recently cleaned windows may need attention from sand and rain-driven debris deposits.
See Clearly Again — Call Today
Streak-free window cleaning across all of Charleston SC. Lowcountry Pressure Washing.
Call (843) 268-6699 →