How Much Does Pressure Washing Cost in Portland?
2026 pricing guide for Portland-area homeowners. Real local prices for driveways, house washing, roof cleaning, and more.
Portland Pressure Washing Prices at a Glance
Prices below reflect what Portland-area homeowners typically pay in 2026. All ranges are starting prices — final cost depends on size, condition, and accessibility. Every job is unique; we always provide a free on-site quote before any work begins.
| Service | Typical Range |
|---|---|
| Single-car driveway (up to 400 sq ft) | $150–$200 |
| Double-car driveway (400–800 sq ft) | $200–$300 |
| Patio or walkway (up to 500 sq ft) | $100–$250 |
| Deck cleaning (wood or composite) | $150–$350 |
| House washing (single-story) | $250–$375 |
| House washing (two-story) | $375–$600 |
| Roof cleaning (soft wash) | $300–$500 |
* Starting estimates. Final pricing confirmed before any work begins. Request a free quote for your specific project.
What Affects Pressure Washing Prices in Portland
Not all jobs are created equal. These are the main factors that move the needle on price:
Square footage
The most straightforward factor. Larger surfaces cost more because they take longer. A 400 sq ft driveway takes about an hour; an 800 sq ft driveway takes close to two. Most contractors price per square foot or use tiered size brackets.
Condition and buildup
Heavy moss, embedded algae, or years of oil staining require pre-treatment, longer dwell times, and sometimes multiple passes. A driveway that hasn't been cleaned in five years costs more to clean than one maintained annually. In Portland's climate, surfaces degrade noticeably every season.
Accessibility
Steep driveways, second-story siding, roofs on hillside homes, and tight fence lines all add setup time and sometimes require specialized equipment. Homes in hilly areas like Lake Oswego's Mountain Park or West Linn tend to see slightly higher quotes for roof and exterior work.
Service type
Pressure washing (for hard surfaces like concrete) costs less per square foot than soft wash house washing or roof cleaning, which use chemical solutions and require more careful application. Roof cleaning in particular carries premium pricing because of the technical skill required to avoid shingle damage.
Bundling multiple services
Booking house washing and gutter cleaning together, or driveway cleaning alongside deck cleaning, often results in a lower combined price than booking each service separately. Setup costs are shared, and mobilization is the same either way.
Why Portland Properties Need Cleaning More Often
If you've moved to Portland from a drier climate, the rate at which exterior surfaces accumulate moss and algae here can be surprising. Portland averages 36–45 inches of annual rainfall, with most of it falling between October and April. Surfaces barely dry out for six months of the year, and that persistent moisture is exactly what moss spores need to establish.
In a drier climate like Phoenix or Denver, a concrete driveway might go five or more years between cleanings. In Portland, most driveways show visible moss and algae growth within one to two years — and some north-facing driveways under heavy tree canopy look neglected after a single wet season.
The upside: regular cleaning (every one to two years) actually extends the life of surfaces. Moss on concrete holds moisture and accelerates freeze-thaw damage. Algae on siding works into paint and wood grain over time. Moss on a roof shortens shingle lifespan by years. The cost of regular exterior cleaning is almost always far lower than the cost of early repairs or replacement.
Frequently Asked Questions
How much does it cost to pressure wash a driveway in Portland?
A single-car driveway (up to 400 sq ft) typically runs $150–$200. A double-car driveway (400–800 sq ft) runs $200–$300. Driveways with heavy oil staining or embedded moss cost more due to pre-treatment.
How much does house washing cost in Portland, OR?
Most single-story homes run $250–$375. Two-story homes typically run $375–$600. Homes with heavy algae buildup — very common in Portland — may cost slightly more due to longer treatment times.
Why does pressure washing cost more in Portland?
Portland's wet climate creates heavier organic growth than drier regions. Surfaces require more pre-treatment and cleaning time to achieve the same result. That said, regular cleaning prevents far more costly repairs down the road.
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