Professional Window Cleaning Across Long Island
Clean windows transform a property. They let in more natural light, improve curb appeal, and signal attention to detail — whether it's a family home in Garden City or a storefront in Huntington. But Long Island's coastal climate, pollen seasons, and construction activity leave windows cloudy, streaked, and spotted faster than almost anywhere else in the Northeast.
Best Power Wash LI provides professional window cleaning for residential and commercial properties across Nassau and Suffolk County. Our crew delivers streak-free, spotless results on every pane — inside and out — using professional-grade tools and techniques that leave windows crystal clear.
Residential Window Cleaning
Your home's windows accumulate more than you think — hard water spots from sprinklers, pollen film, salt haze from the ocean, oxidation on frames, and organic buildup in tracks and sills. We clean it all:
- Exterior window washing — every pane, every floor, streak-free
- Interior window washing — available on request for a complete transformation
- Screen cleaning — screens removed, washed, dried, and re-installed
- Track & sill cleaning — debris, mold, and buildup removed from channels
- Hard water spot removal — mineral deposits dissolved and polished away
- Storm window cleaning — both panels cleaned and reassembled
- Skylight cleaning — safely accessed and cleaned without damage
Window cleaning pairs perfectly with house washing — many customers book both services together for a complete exterior transformation. When your siding is clean and your windows sparkle, your home looks brand new.
Commercial Window Cleaning
For businesses, clean windows aren't optional — they're a customer expectation. Dirty, streaked glass makes even the best business look neglected. We serve:
- Retail storefronts — first-impression glass that draws customers in
- Office buildings — multi-story commercial glass, inside and out
- Restaurants & cafes — crystal-clear dining views for your guests
- Medical & professional offices — clean, bright, professional environments
- Banks & financial offices — trust signals start at the front door
- HOA clubhouses & common areas — maintained to community standards
- Multi-story buildings — water-fed pole systems reach 3-4 stories safely from the ground
Commercial clients can schedule window cleaning as part of a maintenance program — monthly, quarterly, or seasonal — for consistent appearance at preferred pricing.
Our Window Cleaning Process
1. Pre-Inspection
We walk the property and note every window — type, condition, accessibility, and any special concerns like hard water staining, paint overspray, or oxidation.
2. Screen Removal & Cleaning
All removable screens are carefully taken out, individually washed with soft brushes and cleaning solution, rinsed, and set to dry while we clean the glass.
3. Glass Cleaning
Using professional squeegees, applicators, and purified water systems, we clean every pane to a streak-free finish. For multi-story work, we use water-fed pole systems with deionized water that dries spot-free without chemicals.
4. Detail Work
Frames, sills, and tracks are wiped clean. Hard water spots get specialized mineral removal treatment. Every detail is addressed.
5. Screen Re-Installation & Final Check
Cleaned screens are re-installed and every window gets a final quality check. We don't leave until every pane passes inspection.
What Affects Window Cleaning Cost?
- Number of windows — the primary cost driver
- Window size & type — large picture windows, French doors, and skylights take more time
- Stories — multi-story homes need extension poles or ladder work
- Interior + exterior vs. exterior only — full service costs more but delivers a bigger transformation
- Screen cleaning — adds time but dramatically improves overall appearance
- Hard water spot removal — mineral deposits require additional products and technique
- Accessibility — landscaping, steep terrain, or obstacles around windows
We provide free estimates for every window cleaning project — residential and commercial. No obligation, no surprises.
Window Cleaning Maintenance Tips
- Schedule professional cleaning at least twice per year — spring and fall are ideal
- Adjust sprinklers away from windows to prevent hard water buildup
- Clean window tracks annually to prevent mold and drainage issues
- Replace damaged or torn screens to keep insects out and improve appearance
- For commercial properties, monthly or quarterly cleaning maintains professional appearance
Serving All of Long Island
We clean windows across Nassau and Suffolk County — Great Neck, Manhasset, Rockville Centre, Smithtown, Bay Shore, Hicksville, and every community on the island.