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Pressure washing costs in Washington

Here’s the ballpark for common pressure washing jobs around Washington, DC. Want one for your own project? A photo is all it takes.

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Washington

What it usually costs

  • Wash the house siding$0.16 – $0.60 per sq ft
  • Wash the driveway and walkways$0.16 – $0.36 per sq ft
  • Wash a deck or fence$0.33 – $0.54 per sq ft
  • Soft-wash the roof$0.27 – $0.61 per sq ft

A ballpark, not a quote. Some of these are national averages adjusted for Washington prices, so your job could land outside them.

Pressure washing in Washington

A lot of Washington homes meet the street with a brick front, and old brick is softer than it looks. The District's Historic Preservation Office calls a low-pressure water or steam wash the safest way to clean historic masonry, run at the lowest pressure that does the job. For the city's nineteenth-century pressed brick, HPO says 200 to 600 psi is usually enough. A mild cleaning agent or a soft bristle brush can help it along.

The calendar counts here too. HPO says to skip pressure washing a masonry building from November through March, because the water forced into the wall can freeze and permanently damage brick and stone. Cleaning masonry needs no building permit. Sandblasting, though, is prohibited in the District.

Look closely at what your front is made of. HPO warns that acidic cleaners dissolve the surface of glazed brick, marble and limestone.

The rinse water matters as well. DOEE, the District's environment department, counts wash water as a pollutant, and says no amount of it may be washed into a storm drain.

Push past 1,200 psi on historic brick and HPO says you'll likely scar or etch it for good, and the damage may not show until the wall dries.

Sources

Questions homeowners ask

How accurate is a photo estimate?
It’s a ballpark, not a quote. A photo gives us a good read on the surface and how dirty it is, but a pro who sees the whole property will always be more precise. Use our number as the range to expect before you start calling around.
How is pressure washing priced?
Mostly by the square footage and the surface — a concrete driveway is cheaper per foot than siding or a wood deck, which need a gentler soft-wash. Heavy algae, mildew, or oil stains add to it because they take detergent and a second pass.
Will pressure washing damage my siding or deck?
It can if it’s done at full pressure on the wrong surface — that’s why good pros soft-wash siding and wood. Our ballpark factors in the gentler method for delicate surfaces.
Is this really free?
Yes. No signup, no credit card, no spam. We only make money if you choose to connect with a local pro — and that’s up to you.
What photo works best?
One shot showing the full surface you want cleaned — the whole driveway or the side of the house — gives the best read on the size and how dirty it is.

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