Commercial building washing typically costs $0.15–$0.60 per square foot of facade for soft washing, driven mainly by how hard the building is to access, not by how dirty it is. Here’s how that number actually gets built, and how drone soft washing changes it.
The short version
For commercial exterior soft washing, most quotes land somewhere between $0.15 and $0.60 per square foot of facade, with the wide range driven almost entirely by one thing: access. A single-story retail strip a crew can reach from the ground sits at the bottom of the range. A 10-story tower that traditionally requires a swing stage or boom lift sits at the top, sometimes well above it.
That’s the industry’s dirty secret: on taller buildings, you’re often paying more for the equipment to reach the dirt than for removing the dirt itself.
What actually drives the price
1. Height and access. Every story above lift reach historically added cost in equipment rental, rigging time, and insurance. A 120-foot boom lift can run thousands per week before anyone squeezes a trigger. This is the line item drone cleaning attacks directly: our aircraft reach the 15th floor as easily as the 2nd.
2. Square footage of facade (not floor). Cleaning is priced on the surface being cleaned. A quick way to estimate yours: building perimeter × height. A 200’ × 100’ building, four stories (about 48 feet), has roughly 57,600 sq ft of facade.
3. Surface type and condition. Porous EIFS holding years of algae takes more dwell time and chemistry than metal panel with one season of grime. Heavy staining, oxidation, or rust bleed can add treatment passes.
4. Site logistics. Occupied ground floors, landscaping to protect, tight setbacks, water access, and work-hour restrictions all move the number. So do lane or sidewalk closures, which drone crews usually avoid entirely.
5. Frequency. First-time cleanings cost the most. Buildings on a 12–24 month maintenance cycle stay in the cheap-to-clean zone and never look dirty in the first place.
How drone washing changes the math
Because the drone is the access equipment, the traditional height penalty mostly disappears:
- No lift or swing-stage rental: often the single largest line on a mid-rise bid
- Fewer crew-days: flight crews cover facade 2–5× faster than staged access
- No closures: sidewalks, entrances, and parking stay open
- Lower risk profile: nobody working at height on your property
On buildings under three stories with easy ground access, a conventional crew can still be the cheaper option, and when that’s true for your building, we’ll tell you so in the proposal.
Get a real number
Ballparks are for blogs. For your actual building, we scope remotely from the address and aerial imagery and return a written price within one business day. No site visit, no sales meeting required.