Exterior Cleaning FAQ for Oregon Homes, Grouped by Service
This exterior cleaning FAQ for Oregon homes sorts the questions Oregon owners ask by the service they concern. Each answer stays short, then points to the page that covers the topic properly. Every price is also a published GreenTree band, tied to its own service. When a job belongs to another trade, the answer names that trade instead.
Checked 1 October 2026 against the live pages each answer links.
On this page
What does exterior house cleaning include in Oregon?
Exterior house cleaning is the washing of every outside surface on a home, each at its own pressure. Walls and roofs stay under 500 PSI. Driveway slabs take the full force of the machine, while pavers take less. The crew clears gutters by hand, cleans windows with purified water and covers planting first.
Beyond this FAQ, the Oregon pressure washing services page sets out each surface, its price and the pressure it can take.
How does GreenTree price an exterior cleaning job?
A GreenTree quote is a written price per surface, set at a walk round and fixed before work begins. Published bands give a fair starting point. For example, a two-car driveway sits at $299, and washing a one-story house costs $299 to $350. Bundling helps too, because a shared visit cuts 10% to 25% from the combined price.
Each band in this exterior cleaning FAQ also appears in one table on the Oregon cost guide.
How should I prepare my property for an exterior cleaning visit?
Move the cars off the driveway, open any side gates and keep pets indoors before the crew arrives. After that, shut the windows and sliding doors on each wall the crew will wash. Check that one outdoor tap works, since the machine draws from it. Pots, bins and garden chairs can stay put, since the crew shifts and returns them.
Which GreenTree page covers each exterior cleaning service in depth?
One row per service in this Oregon exterior cleaning FAQ: the method, the band and the page that explains it.
| Service | Pressure or method | Published price | In depth |
|---|---|---|---|
| Driveways and concrete | Full pressure on bare slabs | $299, two-car drive | Driveway cleaning |
| House washing | Soft wash under 500 PSI | $299 to $350, one story | House washing |
| Roof cleaning | Hand-lifted moss, gentle rinse | $300 to $600, composition shingle | Roof cleaning |
| Gutter cleaning | Cleared by hand, downspouts flushed | $299, one story | Gutter cleaning |
| Windows | Water-fed pole, purified water | $299 to $700 by panes | Window cleaning |
| Decks | Low pressure along the grain | $299, smaller decks | Deck restoration |
| Solar panels | Purified water, no pressure | $299, home array | Solar panel cleaning |
| Holiday lights | Install, maintain, take down | From $700, one-story roofline | Holiday lights |
| Commercial | Written scope per building | $299 to $600, storefront | Commercial cleaning |
Prices in this Oregon exterior cleaning FAQ come from the published GreenTree bands. Each home still gets its own written number after a site visit.
Driveway and concrete cleaning FAQ for Oregon owners
Can a pressure washer damage concrete or pavers?
Sound bare concrete takes full pressure without harm, so open driveway slabs get it. Paver joints lose their sand under a hard jet, so pavers and stone run softer. Stamped and colored concrete also runs lower. The driveway cleaning page then sets out each surface with its own limit.
Why might an old oil stain only lighten?
GreenTree trucks carry cold-water machines only, so grease leaves through degreaser and dwell time. A fresh drip usually lifts completely, but oil soaked into old concrete for years may only fade. The written quote says so before work starts. Our pressure washing hub explains the method surface by surface.
Will GreenTree seal the driveway afterwards?
No. GreenTree cleans driveways but does not sell or apply sealer. Instead, a sealing contractor can quote that coat and match the product to your finish. A dry summer stretch usually suits that work, since sealer needs a dry slab. A coated slab needs a lower setting at every later wash, so mention any sealer to the crew.
What does a standalone sidewalk clean cost?
On its own, a home frontage costs $299. Booked with the driveway, the walk costs less, because one setup serves both. Walks under trees green fastest of all. The sidewalk cleaning page covers frontage rules city by city.
House washing and siding FAQ for Oregon owners
Why does a house wash stay under 500 PSI?
Siding fails under force long before it comes clean. For its fiber cement boards, James Hardie rules out the high-pressure power washer altogether. A soft brush and a gentle garden hose do the job instead, the maker says. GreenTree therefore holds all siding, whatever the material, below 500 PSI. The house washing hub covers each siding type.
How often should an Oregon house get a wash?
A home in open sun usually needs one wash a year. But walls under fir or maple, north elevations and riverside houses often need one every six to eight months. James Hardie also suggests a hose-down every 6 to 12 months for its own siding. Tree cover changes that schedule more than anything else on the lot.
What happens with flaking paint on an older house?
Any rinse will lift paint that has already come loose. On a home built before 1978, that paint may contain lead. The Oregon Health Authority sets training and license rules for contractors who renovate, repair or paint pre-1978 homes. A lead-safe painter therefore goes first, and the wash follows.
Roof cleaning and moss FAQ for Oregon owners
Can you pressure wash a shingle roof?
No. Asphalt shingle makers rule it out through their trade body, the Asphalt Roofing Manufacturers Association. The result, in its words, is granule loss and very likely premature failure. GreenTree therefore rinses shingle at low pressure only. Prices for each roof type sit on the roof cleaning hub.
How does GreenTree get moss off a roof?
The crew lifts the moss off by hand, especially in valleys and along shingle edges, where it builds thickest. A low-pressure rinse carries loose fragments down to the gutter, which comes last. Roof type sets the band: $300 to $600 on composition shingle, $500 to $900 on cedar shake. The moss removal guide also covers moss on walks and siding.
When does a roof need a roofer instead?
Call a licensed roofer first when the fault lies in the roof itself, not on its surface. A sagging ridge, cracked or missing shingles, soft decking and attic leaks all qualify. Similarly, bald shingles shedding granules point to a roof near its end. Our roof maintenance page explains the yearly check.
Why does roof moss keep coming back?
Spores reach every Oregon roof, and shade then lets them settle. OSU Extension says trimming nearby trees helps more over time than any clean. It lets the sun reach the roof. North planes under big trees therefore green up first. Otherwise, a cleaned roof simply grows moss again over a few wet seasons.
Gutter cleaning FAQ for Oregon owners
What does the gutter price include?
Gutter cleaning starts at $299, the GreenTree minimum, on one story or two. The crew clears each trough by hand. The downspout flush and flow test follow afterwards at no extra cost. The bagged debris then leaves with the crew. The gutter cleaning hub also shows what pushes a quote up or down.
Does GreenTree fix gutters or fit guards?
No. Repairs, new runs and guards all sit with a licensed gutter contractor, since GreenTree only cleans. When guards already exist, the crew lifts each section, clears the trough below and sets it back. Any fault the flow test finds also goes into your photo notes, along with the trade to call.
Should anyone pressure wash the inside of a gutter?
No. GreenTree clears every gutter by hand. That is because water under pressure finds its way behind the fascia board and soaks the soffit. It also sprays loose sludge over the walls and windows below. Instead, our seasonal cleaning guide explains the hand method, including the ladder rules a homeowner should copy.
Window, skylight and solar panel cleaning FAQ
How does GreenTree clean windows and skylights?
The crew works from the ground with a water-fed pole and purified water. The glass dries without spots as a result. Pane count and height set what most homes pay for windows: $299 to $700. Skylights cost $25 to $35 each. The window cleaning page also breaks the price down by home size.
Can solar panels take a pressure washer?
No. Panels get purified water only, with no pressure, no abrasives and no detergent. The crew also follows the cleaning terms in your panel maker manual. A home array runs $299, set by panel count and access. Wiring and electrical faults stay with a solar electrician. See solar panel cleaning.
Deck and fence cleaning FAQ
Will a deck clean leave the boards ridged?
No, provided the wand runs along each board at low pressure. The Forest Products Laboratory notes that power washing erodes soft earlywood faster than dense latewood, leaving ridges behind. The wand follows each board instead of crossing it. Decks up to 300 square feet cost $299 to clean, while fence washing runs $299 to $400.
Does GreenTree stain a deck after cleaning?
Yes, deck staining is a GreenTree service, and it follows when the boards have dried. GreenTree repairs any rot, wobble or structural fault as part of its full deck package before stain goes on. Stain cannot grip soft or gray fiber, so the walk round flags any such wood. The deck restoration page explains the timing.
Exterior cleaning FAQ for property managers and sellers
Does GreenTree clean storefronts and commercial buildings?
Yes, against a written scope that lists each building and surface. A storefront usually runs $299 to $600, set by frontage, frequency and the hours the crew can work. Multi-story exteriors need reach equipment and run $400 to $900. The commercial pressure washing hub covers office, HOA and retail work.
Can each rental property get its own invoice?
Yes. Each managed property can carry its own invoice for owners, though one invoice can also cover the portfolio. A quote stays fixed while a board votes on it. Photos then follow each building, numbered to match your site plan. The property manager page lists the paperwork.
Is a pre-sale exterior clean worth booking?
It suits sellers when listing photos would show green siding, a dark driveway or streaked gutters. Book it shortly before the photographer, since growth returns through the wet months. Insurance paperwork can also go to the agent before the visit. See pre-sale home cleaning.
FAQ about GreenTree itself
Is GreenTree insured and registered in Oregon?
Yes. A $2 million general liability policy stands behind every job, and the crew also carries workers compensation. The state registry entry, Oregon Registry #2424331-91, is public. It confirms a registered business with the Secretary of State, but it is not a contractor license. The why choose GreenTree page shows how to check each fact.
Which Oregon towns does GreenTree cover?
The standing route links seven valley towns, from Salem in the north to Eugene and Springfield in the south. Addresses on that route pay no travel charge, while the Portland metro gets its own scheduled days. GreenTree has worked on more than 500 properties since 2022. Each city page links from the Oregon pressure washing hub.
Who founded GreenTree, and when?
GreenTree was set up in 2022, with Corvallis as its base. Every crew works to its standards for pressure, chemistry and documentation. The phone line opens seven days a week at 7am and closes at 7pm. The about page also lists the address, the services and the work GreenTree does not take on.
Who should book exterior cleaning, and who should call another trade?
GreenTree cleans surfaces. Repairs, coatings and trees belong to the trades named here.
A sound surface that is only dirty, mossy or stained is a GreenTree job. But damage to the material itself sends you to a different trade first.
| Job | GreenTree? | Who to call |
|---|---|---|
| Roof repair or a new roof | No | A licensed roofer |
| Gutter repair, new runs or guards | No | A licensed gutter contractor |
| Rotten or loose deck parts | Staining only | GreenTree handles the repairs |
| Driveway or patio sealing | No | A sealing contractor |
| Peeling paint, pre-1978 house | Wash afterwards | A lead-safe painter |
| Limbs over the roof or tree removal | No | An arborist |
| Wiring on a solar array | No | A solar electrician |
| Interior cleaning, carpets or painting | No | An interior trade |
A single grubby step seldom needs a crew at all. Instead, a stiff brush and a bucket usually handle it.
How does an exterior cleaning visit run, step by step?
From first look to final bill, in six stages.
Walk round and written price
The crew looks at every surface on your list, then writes one figure that holds.
Cover planting and plan the rinse
Beds get soaked and sheeted, and rinse water heads for lawn.
Set pressure surface by surface
Shingle and cladding get under 500 PSI, while concrete slabs get the full machine.
Work from the roof down
Roofs come first and gutters follow, so nothing drops onto clean walls or paving.
Walk the result together
You inspect each area with the crew, and the before and after photos follow.
Invoice that matches the quote
The bill repeats the written figure, payable by cash, check or card.
What the free exterior cleaning quote checks, from roof line to rinse route
- Material. Concrete, pavers, vinyl, fiber cement, cedar and shingle each carry their own pressure ceiling.
- Size and stories. Area and story count choose the price band and the ladder work.
- Growth and stains. Moss depth, algae age and oil spots decide how much hand work and rinsing a job needs.
- Trees overhead. Fir, maple and oak tell the crew when roofs and gutters will fill again.
- Access. Locked gates, slopes and a distant tap each lengthen the hose run.
- Water. One working outdoor tap within reach feeds the machine.
- Rinse route. Detergent water needs lawn or soil to soak into rather than a street drain.
- Parking. A truck spot near the tap keeps setup short.
Then you get one written figure per surface, and nothing goes on the calendar until you accept it. Request the free quote here.
What do Oregon customers say about our exterior cleaning?
What two GreenTree customers wrote. Read more reviews
My driveway and back patio had not been cleaned in years. Both were so bad they looked black. By the time Green Tree was done both looked almost brand new. I would highly recommend and will use them again in the future.Diane M.
Green Tree Services did an excellent job. Efficient. Professional. High quality. Reasonable price. Highly recommend.Lisa R.
Exterior cleaning FAQ: ten quick answers for Oregon homeowners
Ten general questions close this exterior cleaning FAQ, each with a short answer for Oregon homes.
What is the difference between soft washing and pressure washing?
Soft washing runs under 500 PSI and suits siding and roofs, because force damages both. Full-force pressure washing belongs on bare concrete, the one surface built to take it. Pavers and decks sit in between, at a gentler setting. A single visit therefore often uses both methods, each on its own surface.
Do I need to be home while the crew works?
For exterior work, no. Someone needs to be home only if you book inside window glass. Before leaving, unlock the gates, check the outdoor tap and keep pets indoors. The crew sends before and after photos once it finishes, so you can check each area from work. Still, anyone at home is welcome to walk the result with the crew.
Where does the rinse water go on an Oregon lot?
Onto lawn or planted soil, never down a street drain. That is because Oregon DEQ washing guidance allows two outlets for soapy rinse: the ground or a sanitary sewer. So the crew picks a lawn or bed for the rinse at the walk round. Paving also gets a sweep first, which keeps loose debris out of the drains.
Can one visit cover several services?
Yes, and bundling lowers the total. Three or more services on that visit then take 10% to 25% off the bundle, scaled by how many you add. Roofs go first and gutters last, so roof debris never lands in a cleared trough. You then receive a single invoice for the lot.
Can the price change on the day?
No. The figure you accept at the walk round goes in writing and stays fixed. Later, your invoice shows that same number. Anything new the crew finds, such as rot behind a gutter, goes into notes for the right trade. It never turns up as an extra charge.
How do I pay for the work?
GreenTree accepts cash, check or credit card. After the work, an invoice for the quoted amount follows. Property managers can also ask for one invoice per property or one for the whole portfolio. Questions about a bill go to (971) 280-2861, seven days a week.
How do I get a free quote?
Call (971) 280-2861 between 7am and 7pm, seven days a week, or use the online quote form. A walk round then measures each surface on site. You receive one written figure per surface, and nothing goes on the calendar until you accept it. The quote visit itself costs nothing.
Does GreenTree work in the Portland metro?
Yes, on pre-set route days rather than the daily valley loop. Portland, Lake Oswego, West Linn, Hillsboro, Beaverton, Tigard and Gresham all fall on those routes. Valley homes between Salem and Springfield sit on the main route instead. Ask at booking which metro route day suits your street.
Is a rental pressure washer safe on siding?
Only at the gentle end of its range, and never aimed up under the laps. James Hardie, which makes fiber cement siding, favors a gentle hose rather than any high-pressure machine. Most dirt on Oregon cladding thus comes off without force. Still, heavy green growth on a second story is usually a job for a crew.
How soon does growth come back after a clean?
That depends on the site far more than on the clean. Open, sunny surfaces often stay clear for a year or longer. But shaded north walls, roofs under fir and damp walks green up sooner, often within a couple of wet seasons. A yearly visit suits most homes, while heavily shaded ones may need two.
Ask the question this exterior cleaning FAQ missed
Call or send the form, and then the answer comes from the people who run the crews. A walk round and a written figure cost nothing.
Use this exterior cleaning FAQ for Oregon homes as a starting point, then open each linked page.
GreenTree Services, 1460 NW Van Buren Ave, Corvallis, OR 97330 · (971) 280-2861 · Oregon Registry #2424331-91
Sources: ARMA roof guidance. Hardie siding care. OSU Extension on moss. OHA lead rules. DEQ washing guidance. FPL wood finishing. Registry #2424331-91.