House Washing Service in Oregon
Soft washed under 500 PSI, gentler than a garden hose held close. It is the only method vinyl, stucco, fiber cement and painted wood should ever see. $250 to $350 single storey, $350 to $500 two storey, the average Oregon market rate, locked in writing. Biodegradable products, planting soaked and covered first, and photos on every job.
Last reviewed 13 September 2026 by GreenTree Services, Corvallis. We re-check every figure and method on this page against how the crews actually work before republishing it.
On this page
- Cost, method and how often
- How much does house washing cost in Oregon?
- Is house washing the same as pressure washing?
- How often should a house be washed in Oregon?
- What is house washing?
- Do you offer house washing near me?
- What your siding can take
- The five steps on every wash
- Why is one quote cheaper than another?
- What do cheap house washers near me usually skip?
- What it costs across Oregon
- Before painting, before listing, and after winter
Cost, method and how often
The four questions people search before booking, answered with the figures we quote from.
How much does house washing cost in Oregon?
$250 to $350 for a single-storey home and $350 to $500 for two storeys, reaching $600 on larger or more complex elevations. Those are average Oregon market rates. Furthermore, they hold in every city on the route. Additionally, we quote per property after a walkthrough and lock the figure in writing. House power washing near me prices vary mostly by storey count, elevation complexity and access rather than by square footage alone. Booking alongside gutters or window cleaning lowers the combined total.
Is house washing the same as pressure washing?
No, and confusing the two is exactly how siding gets damaged. Pressure Washing drives water at 2,500 to 4,000 PSI and belongs on concrete. A house wash is a soft wash under 500 PSI where a biodegradable cleaner does the work and the water only rinses it away. House pressure washing at full force forces water behind panels, strips paint from older wood, and can void a siding warranty. House pressure washing services that quote the same setting for your driveway and your walls are telling you how fast they intend to work.
How often should a house be washed in Oregon?
Once a year for most homes, every six to eight months for north-facing walls, properties under tree cover and homes near a river. The wet season here runs October to May, which gives algae and mildew a far longer growing window than most of the country. That is the green film that appears on the shaded side of a house while the sunny side still looks clean, on the same building and the same siding.
What is house washing?
House washing is the cleaning of exterior siding using a soft wash under 500 PSI, where a biodegradable cleaner breaks down algae and mildew and the water only rinses it away. Specifically, a full wash covers six areas:
- Siding on every elevation, including the shaded walls
- Eaves, soffits and fascia
- Gutter exteriors
- Trim, shutters and window surrounds
- Light fixtures and house numbers
- Entry doors and porch ceilings
House pressure washing at 2,500 PSI or above, by comparison, forces water behind panels. As a result, it also strips paint from older wood.
Do you offer house washing near me?
If you are in the mid Willamette Valley, yes, with no trip fee. The route covers Corvallis, Albany, Eugene, Springfield, Salem, Philomath and Lebanon. House washing services near me searches from any of those land inside the area. Each city has its own page below. Painted wood near a campus needs a different approach to modern vinyl on an open lot in Bethel.
What your siding can take
Siding material decides the method more than anything else about the property. This is the reference we work to before mixing anything.
| Siding | Method | What to watch |
|---|---|---|
| Vinyl | Soft wash under 500 PSI | Water gets behind panels easily. Rinse top down, never upward into the laps. |
| Painted wood | Soft wash, paint checked first | Pre-1980 paint can chalk or lift. Condition assessed before product is chosen. |
| Cedar and shake | Lowest pressure, longer dwell | Soft, porous and unforgiving. Slower work, more product, no shortcuts. |
| Stucco | Soft wash, controlled volume | Absorbs water. Over-saturation shows as staining weeks later. |
| Fiber cement | Soft wash under 500 PSI | Durable, but joints and butt seams still take water under pressure. |
| Brick and historic mortar | Lowest pressure by hand | Lime mortar blows out under pressure and is expensive to repoint. |
Detail on the method itself in the soft wash versus pressure wash comparison.
The five steps on every wash
Step two is the one that protects your planting, and step three is the one that decides whether the walls stay clean past spring.
Assess the siding
Material, age and paint condition checked on every elevation, plus anything fragile. The quote goes in writing and is locked.
Soak and cover the planting
Beds, shrubs and fixtures wetted and sheeted before any product is mixed. Rinse paths planned away from storm drains.
Apply and dwell
Biodegradable cleaner applied at low pressure and given time to break down algae, mildew and the green film on shaded walls.
Rinse top down under 500 PSI
Rinsing works downward so nothing streaks. Eaves, soffits, trim and fixtures included, not just the flat wall.
Rinse planting and document
Beds rinsed a second time, the work walked with you, and before and after photos sent.
Why is one quote cheaper than another?
House washing companies across Oregon quote inside a narrow band. What changes is how much of the building gets touched, and whether the planting survives it.
What do cheap house washers near me usually skip?
The planting prep and the elevations nobody sees from the street. Any house washer near me can rinse a wall. Soaking and sheeting beds takes twenty minutes and cannot be photographed afterwards, so it is the first thing dropped. The second is the back and side walls, which is where the algae actually lives because they get the least sun. A wash that only covers the front is half a job at close to a full price.
Our standard against the shortcut
| Our standard | What commonly happens instead |
|---|---|
| Beds soaked and sheeted, then rinsed again | Product straight onto the walls above live planting, with the loss showing a week later. |
| Every elevation washed, shaded walls included | Street frontage only, leaving the growth on the walls that actually harbour it. |
| Paint condition checked before mixing | One mix for every property regardless of siding age or finish. |
| Eaves, soffits, trim and fixtures included | Flat wall only, so the dirty band under the eaves stays exactly where it was. |
| Rinsed top down to avoid streaking | Upward rinsing, which drives water into the laps and leaves run marks. |
| Run-off directed off the storm system | Straight to the kerb, against Oregon DEQ rules. |
| Photographic record of every elevation | Nothing documented, on walls you rarely stand back and look at. |
| $2M insured, Oregon registered | No cover, so water damage inside a wall becomes your claim. |
None of it costs more in materials. It costs hours, and a schedule built around four properties a day has none spare. Pricing at the Oregon average and washing the whole building means fewer jobs per day and customers who book again each spring.
Before painting, before listing, and after winter
Can you wash a house before painting or selling?
Yes, and painters usually require it. Paint will not bond properly to chalked, mildewed or dirty siding, so a wash is standard preparation rather than an optional extra. For a sale, clean siding and clean glass change the first photograph and the first impression more cheaply than almost any other exterior work. Both bookings get scheduled to the painter’s start date or the listing date rather than to our convenience. See pre-sale cleaning.
What does a full service include?
Every elevation, not just the one facing the road. Siding on all sides, eaves, soffits, fascia, gutter exteriors, trim, shutters and light fixtures. Plants soaked and covered first, pre-treatment given time to work, rinsing top down so nothing streaks, and before and after photos on every job. The shaded north wall is usually the dirtiest and the one most often skipped.
Every city on the route
Each city page carries the local siding stock, the neighbourhoods and the timing. No trip fee anywhere on this list.
Coverage and ZIP codes: Corvallis 97330 and 97333, Albany 97321 and 97322, Eugene 97401 to 97405, Springfield 97477, Salem 97301 and Philomath 97370. Siding stock varies sharply by area: painted wood in Monteith and Hackleman, Craftsman in Whiteaker and Jefferson Westside, modern vinyl across Timberhill and Bethel.
Benton and Linn Counties
Lane and Marion Counties
House washing prices across Oregon
Soft washing under 500 PSI, priced by storey count and elevation length rather than interior square footage, which has almost no bearing on the work.
| Service | What it covers | Price |
|---|---|---|
| Single-storey home | All elevations, trim and soffits | $250 to $350 |
| Two-storey home | Reach equipment, more product | $350 to $500 |
| Long ranch elevation | More wall, no height premium | $250 to $400 |
| Cedar, T1-11 or painted wood | Lowest pressure, longest dwell | $300 to $500 |
| Vinyl and fibre cement | Standard soft wash | $250 to $400 |
| Gutter face and fascia | Cleaned at the same visit | $150 to $300 |
| Biodegradable treatment | Kills growth at the root | Included |
| Plant covering and pre-soak | Standard on every job | Included |
A pressure rinse and a soft wash are different services. Rinsing removes what you can see, and the growth returns the same season. Soft washing kills it at the root, which costs more and lasts longer. Both get advertised as house washing.
Booking several services together earns a bundle discount of 10% to 25%, scaled by how many are on the job. The Oregon cost guide carries every range we publish.
What Oregon customers say
5.0 across 13 reviews. Read them all →
★★★★★
Super attentive to detail, solid work on our home in Lake Oswego, OregonAshley G.
★★★★★
These guys are awesome, great attitude and I was completely impressed with the job they did at my new house. Will definitely be using them again and again.Jeff M.
★★★★★
I highly recommend this company for their professionalism in the excellent quality of their work, attention to detail, customer service, dependability, conscientiousness, and personal integrity.Pam G.
Frequently asked questions
Ten questions, each one mirrored in the FAQ schema on this page.
How much does house washing cost in Oregon?
House washing runs $250 to $350 for a single-storey home and $350 to $500 for two storeys, with larger or more complex elevations reaching $600. Those are average Oregon market rates. GreenTree quotes per property after a walkthrough and locks the figure in writing. Booking it alongside gutters or windows lowers the combined total because it is one setup and one visit.
Is house washing the same as pressure washing?
No, and confusing the two is how siding gets damaged. Pressure washing drives water at 2,500 to 4,000 PSI and belongs on concrete. House washing is a soft wash under 500 PSI where a biodegradable cleaner does the work and the water only rinses. High pressure on siding forces water behind panels, strips paint from older wood and can void a siding warranty.
Will house washing damage paint or siding?
Not at the correct pressure. A soft wash under 500 PSI is gentler than a garden hose at close range. It is what vinyl, fiber cement, stucco and painted wood all require. Damage happens when a crew uses the driveway setting on the walls. On homes built before about 1980, paint condition is checked before any product is chosen.
How often should a house be washed in Oregon?
Once a year for most Oregon homes, and every six to eight months for north-facing elevations, properties under tree cover and homes near a river. The wet season runs October to May here. That gives algae and mildew a far longer growing window than most of the country, and leaves the green film on shaded walls.
Do you offer house washing near me?
The Willamette Valley is our standing route, covering Corvallis, Albany, Eugene, Springfield, Salem, Philomath and Lebanon, with the Portland metro area served on scheduled routes across Benton, Linn and Lane counties, with no trip fee inside the service area. Each city has its own page with the local siding stock and timing. A 1920s painted wood exterior near a campus needs a different approach to modern vinyl on an open lot.
What does a house washing service include?
Siding on every elevation, eaves, soffits, fascia, gutter exteriors, trim, shutters and light fixtures. Plants and beds are soaked and covered first, the pre-treatment is given time to work, and rinsing runs top down so nothing streaks. Before and after photos are sent on every job.
Can you wash a house before painting or selling?
Yes, and both are common bookings. Paint will not bond properly to chalked, mildewed or dirty siding, so painters usually require a wash first. For a sale, clean siding and clean glass change the first photograph and the first impression more cheaply than almost any other exterior work.
How long does house washing take and when can I use the property?
Three to five hours for a typical single-family home, longer for two storeys or complex elevations. The property is usable immediately. Windows and doors stay closed during the work, and plants are rinsed again once we finish.
Are your house washers insured?
Yes. GreenTree Services carries $2 million in general liability insurance, and the certificate is available before the crew arrives if you ask. The company has been registered with the Oregon Secretary of State since 2022 under Registry number 2424331-91.
What products do you use and are they safe for plants?
Biodegradable cleaners, applied at low pressure and rinsed thoroughly. Beds and shrubs are soaked before any product goes down and rinsed again afterwards, which is what actually protects planting. Run-off is directed away from storm drains. In the Willamette Valley those feed the rivers with little treatment, and Oregon DEQ regulates what may enter them.
Get a written, price-locked quote
We reply within 2 hours during business hours, Mon to Sat 7am to 7pm. Bundle with gutters or windows and the combined figure comes down.
GreenTree Services, 1460 NW Van Buren Ave, Corvallis, OR 97330 · (971) 280-2861 · Oregon Registry #2424331-91
Sources and standards: Oregon DEQ stormwater rules · James Hardie fiber cement care · Vinyl Siding Institute cleaning guidance · NOAA rainfall data · Verify Registry #2424331-91