The secret to exterior window cleaning is using the right method, not the most pressure. In Horsham, PA, we match the cleaner and pressure to the surface so it comes out clean without damage.
The right method for the job
When to book exterior window cleaning
- Spotty or streaky glass
- Hard-water spots from sprinklers
- Dirty frames and sills
- Screens full of dust and pollen
Why it gets dirty
- Rain and sprinkler water drying on the glass
- Pollen and dust
- Runoff from dirty siding and roofs
Safe steps for homeowners
- Use a squeegee and a mild soap solution on reachable windows
- Clean screens with a soft brush and hose
- Point sprinklers away from windows
Not sure what you're looking at? The free stain identifier and safe pressure guide explain each stain and surface.
Why more pressure isn’t better
- Pressure washing windows, which can break seals and push water inside
- Scratching glass with abrasive pads or razors on tempered glass
What happens on the day
- Remove and clean screens
- Wash glass and frames
- Treat hard-water spots where possible
- Detail sills and tracks
- Reinstall screens
How much does exterior window cleaning cost?
What moves the price:
- Size: square footage of siding, roof or flatwork
- Condition: heavy growth, old stains and peeling finishes take longer
- Access: number of stories, roof pitch, slopes and how close we can park
- Add-ons: sealing, gutter brightening and other services done in the same trip
These are typical U.S. ranges, not a quote. You get an exact price before any work starts. For a quick estimate, try the pressure washing cost calculator.
Serving Horsham, PA and nearby towns
Rust from sprinklers and fertilizer, leaf tannin stains in the fall, and salt residue in the spring are the most common stains on Pennsylvania driveways and walkways.
We provide exterior window cleaning across Horsham (ZIP code 19044) and nearby towns including Hatboro (1.2 mi), Willow Grove (2.5 mi), Warminster Heights (2.5 mi) and Dresher (3.3 mi). Call (555) 010-0000 for a free quote in Horsham.
Exterior Window Cleaning: frequently asked questions
How much does exterior window cleaning cost in Horsham, PA?
Exterior Window Cleaning typically costs $150-$400 for a typical home's exterior windows, and usually takes 1-3 hours. The exact price depends on the size and condition, and you get it before any work starts. Call (555) 010-0000 for a free quote.
Do you use high pressure for exterior window cleaning?
Exterior Window Cleaning is done with hand cleaning or pure-water pole. Low pressure and the right solution remove growth and dirt without damaging the surface, and the growth takes longer to come back.
Is exterior window cleaning safe for my plants and pets?
We pre-wet plants and lawns, keep cleaning solutions diluted to what the surface needs, and rinse landscaping again when we finish. Keep pets and children inside until surfaces are rinsed and dry.
How often should I schedule exterior window cleaning?
Once or twice a year. Shade, nearby trees, humidity and heavy traffic mean more frequent cleaning; sunny, dry spots can go longer. Our free cleaning frequency tool gives a recommendation for your climate.
What if it rains on the day?
Light rain doesn't stop most washing, but heavy rain, high wind, lightning and freezing temperatures do. If the weather isn't right, we reschedule at no charge. Our work is backed by a satisfaction guarantee.