House Washing
Organic growth and exterior buildup addressed with a surface-specific house washing process.
View House WashingExterior cleaning & restoration results
See the difference the right approach can make.
Every surface tells a different story.
Algae on siding, weathered concrete, stained masonry, oxidized finishes, fleet buildup, and commercial grime may all look like cleaning problems, but they do not all call for the same solution.
At Keystone, we start by understanding the material and what is causing the problem, then match the chemistry, pressure, equipment, and process to the surface.
Explore before-and-after work
across the properties we care for.
Concrete & Sidewalk Cleaning
Built-up grime and organic staining removed using methods matched to the condition of the concrete.
View Concrete & Sidewalk Cleaning
Deck & Patio Cleaning
Weathering and exterior buildup addressed with a process selected for the deck material and condition.
View Deck & Patio Cleaning
Commercial Building Washing
Exterior staining and buildup removed with methods matched to the building and operation.
View Building WashingThe goal isn’t maximum pressure.
It’s the right result for the surface.
Two properties can look like they have the same problem and still require completely different treatment.
That’s why we evaluate the material, condition, buildup, and realistic outcome before deciding how to proceed. Some surfaces respond to routine cleaning. Others need targeted chemistry, lower pressure, restoration techniques, or more specialized treatment.
Preserve. Prolong. Protect.
More examples from our work.
Masonry Cleaning
Organic growth and staining treated with surface-specific masonry care.
Project photos pending
EIFS/Dryvit & Stucco Cleaning
Sensitive finishes cleaned with controlled, surface-specific methods.
Project photos pending
Heavy Equipment Cleaning
Grease, mud, road residue, and working buildup addressed on-site.
Project photos pending
Oxidation Removal
Chalky, faded finishes treated based on material and condition.
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“Excellent job. Our house looks great!”— Erik H.
Proudly serving Central Pennsylvania.
We provide residential, commercial, industrial, and fleet exterior care throughout Central PA, including:
- York
- Harrisburg
- Mechanicsburg
- Camp Hill
- Middletown
- New Cumberland
- Hanover
- Dillsburg
- Lancaster
- Enola
- Lemoyne
- Hershey
- Carlisle
- Colonial Park
For larger commercial, industrial, restoration, and fleet projects, we're happy to travel beyond our primary service area. Not sure if we cover your location? Just ask.
Have a surface that needs the right care?
Tell us what’s going on with your home’s exterior, and we’ll follow up with honest guidance and a clear quote.