pressure-washing

How Much Does Pressure Washing Cost in Oregon? (2026 Price Guide)

Oregon pressure washing prices for 2026: house washes $250 to $500, roof moss soft washing $400 to $900, plus wet-side moss cycles, CCB licensing, and bundling tips.

How Much Does Pressure Washing Cost in Oregon? (2026 Price Guide)

Walk around almost any house in Portland, Salem, or Eugene in March and you will see the same pattern: green film on the north-facing siding, moss thickening along the roofline, and a driveway that turns slick the moment it rains. Western Oregon grows algae the way other states grow dust. That growth is the reason most homeowners here end up hiring a pressure washing company, and it shapes what the work costs.

In 2026, most Oregon exterior cleaning jobs land in familiar ranges. A full house wash runs about $250 to $500, a standard two-car driveway costs $100 to $250, and a roof moss treatment paired with a soft wash falls between $400 and $900. A deck cleaning typically runs $150 to $350.

Those figures move with square footage, buildup, and which side of the Cascades you live on. A two-story home carrying two seasons of algae takes more time, more cleaning solution, and more ladder work than a single-level ranch that gets washed every summer.

Demand keeps climbing as more homeowners treat washing as routine maintenance instead of a pre-sale scramble. Companies from Beaverton to Medford now sell annual plans, and those plans usually beat one-off pricing by about 10 percent.

How Oregon Companies Price a Job

Most contractors quote by the square foot, then round the math into a flat project price. Flatwork such as driveways, sidewalks, and patios usually runs 10 to 30 cents per square foot. Siding costs more because it involves ladders and gentler technique, so expect 15 to 40 cents per square foot for a house wash.

Some companies skip the per-foot math and bill by the hour instead, typically $75 to $150 per hour for a crew with commercial equipment. Either way, nearly everyone carries a minimum charge of $150 to $200 to cover drive time and setup. That is why cleaning a short front walk costs almost as much as doing the whole driveway.

A few variables push quotes toward the top of the ranges. Heavy moss, steep lots, and third-story walls all add labor time. So does deferred maintenance, since siding that has gone five years between washes can take twice as long as siding cleaned last summer.

Here is how that math translates into typical project prices around the state:

Treat any quote far below these numbers with caution. Bargain operators often skip the pre-treatment step, and that step is what keeps the moss from coming right back by October.

Soft Washing or High Pressure: Matching the Method to the Surface

High pressure belongs on concrete. A surface cleaner running 2,500 to 3,500 PSI strips algae, tire marks, and ground-in grime from a driveway without harming the slab, and the results show up in a single pass.

Siding and roofs need the opposite approach. Soft washing uses low pressure, usually under 500 PSI, and lets a detergent mix do the work. The solution kills algae and moss at the root, then a gentle rinse carries everything off.

The mix itself is usually a diluted sodium hypochlorite solution with a surfactant that helps it cling to vertical surfaces. It keeps working after the crew leaves, which is why a soft-washed wall often looks even better a week later than it did the day of the job.

Cedar siding, which is common on Oregon homes built from the 1960s through the 1990s, gouges and furs up under a high-pressure wand. Composition shingle roofs are even less forgiving. Blasting a comp roof strips away the protective granules and can shave years off its life.

That is why reputable Oregon roof cleaners quote a treat-and-rinse soft wash instead of a pressure job. If a company proposes running a wand across your shingles, keep calling around. The soft wash costs about the same and leaves the roof intact.

Good soft wash crews also protect what surrounds the house. They pre-wet plants, bag light fixtures, and rinse the beds when they finish, since the cleaning mix is hard on shrubs. It is worth asking how a company handles landscaping before you sign anything.

Ask how long the results should last while you are at it. Many Willamette Valley companies stand behind a roof treatment for two to three years, and some will spot-treat any regrowth in the first year at no charge.

Portland Grows Moss, Bend Grows Dust

West of the Cascades, exterior cleaning is a recurring chore rather than a one-time fix. Portland, Salem, and Eugene sit in a climate where moss and algae grow through all four seasons, and a shaded north wall can green up again within 18 months of a wash.

Homeowners on the wet side tend to settle into a rhythm. A house wash every year or two and a roof treatment every two to three years keeps most properties ahead of the growth. Thick roof moss routinely pushes wet-side jobs toward the $700 to $900 end of the range.

Tree cover compounds the problem. Homes under big firs in Southwest Portland or the South Eugene hills collect needle litter that holds moisture against the roof, so crews often suggest pairing a $100 to $200 gutter clean-out with the moss treatment.

The coast adds salt to the mix. Homes in Astoria, Newport, and Coos Bay collect a gray salt film on top of the usual growth, and wind-driven rain works grime into every gap. Coastal homeowners often wash annually just to protect paint and trim.

Central and eastern Oregon flip the problem. Homes in Bend, Redmond, and Prineville collect dust, pine pollen, and wildfire-season ash instead of moss, so a house wash there is usually a lighter job that quotes closer to $250 to $400.

The dry side has fewer companies, though. Scheduling can take longer, and crews charge travel fees for jobs outside town, so a Bend outfit heading to a property near Sisters may add $50 to $100 for the drive.

Licensing, Timing, and Ways to Pay Less

Check licensing before you hire anyone. Companies doing this work in Oregon must hold an active Construction Contractors Board license, and you can verify a CCB number online in about a minute. A licensed outfit carries insurance and a bond, which matters when someone is working off a ladder above your garden beds.

A written quote should spell out the method, the products, and what happens if the weather turns. Most Oregon companies reschedule around downpours at no charge, since drizzle rarely stops a wash but a hard rain dilutes the roof treatment.

Late spring through early fall is the busy season statewide, and June and July calendars fill first. Call in April if you want your pick of dates. Roof moss treatment is the one job that favors fall, because the product keeps working on the growth through the wet months.

Bundling is the most dependable discount in this trade. Companies price around drive time and setup, so adding a driveway to a house wash might cost $75 to $150 instead of the standalone $100 to $250. Gutters, patios, and fences follow the same logic.

Neighbors can help too. Some Portland-area crews take 10 to 15 percent off when they can park once and wash two or three houses on the same street. It costs nothing to ask about a group rate when the house next door needs work as well.

Collecting two or three bids matters more here than in most trades, because pricing methods vary so much from company to company. Browsing the pressure washing companies listed near you side by side makes the outlier bids easy to spot. For reminders on gutters, roofs, and the rest of the exterior calendar, the seasonal maintenance articles on our blog are worth a bookmark.

Frequently Asked Questions

How often should a roof be treated for moss in western Oregon?

Every two to three years keeps most Portland and Willamette Valley roofs clear. A $400 to $900 treatment on that cycle costs far less than replacing shingles a decade early.

Is high pressure ever okay on siding?

On brick, block, and fiber cement in good condition, moderate pressure works fine. Cedar and other wood siding should always get a soft wash, since a 3,000 PSI wand can gouge the grain in one pass.

What does a driveway cleaning cost in Bend?

Plan on roughly $100 to $200 for a standard two-car driveway. Dust and pine pollen rinse off faster than wet-side algae, so Bend flatwork often lands near the low end of the state range.

Do pressure washing companies in Oregon need a license?

Yes, the work falls under the Construction Contractors Board, so the company needs an active CCB number. Ask for the number and check its status online before anyone sets up a ladder.

What time of year is cheapest for a house wash in Oregon?

Late September through October, when some crews discount 10 to 15 percent to fill the shoulder season. Winter work is possible on flatwork, though steady rain makes siding jobs slow and messy.

Can I rent a machine and do this myself?

A weekend rental runs $75 to $120 and handles flatwork reasonably well. Roofs and second-story siding are where DIY goes wrong, since rental units lack soft wash equipment and ladder work raises the stakes.