Real 2026 pressure washing and soft-wash pricing from verified Bothell-area contractors — by surface, square footage, and ZIP code.
Pressure Washing in Bothell, WA typically costs $150–$700 per visit in 2026, depending on lot size and terrain. Most Bothell property owners on a weekly schedule (April–October) pay the mid-range tier. Get an exact, itemized price for your address in under 60 seconds with an instant Quotly quote.
Bothell straddles the King-Snohomish county line along the North Creek and Sammamish River corridors, anchored by the University of Washington Bothell campus, the Country Village shops, Blyth Park along the river, and the dense residential neighborhoods of Canyon Park, Norway Hill, and Queensborough. With roughly 50,000 residents and about 40 inches of annual rainfall, Bothell homes — particularly on the wooded slopes of Norway Hill and under the mature second-growth northwest of Canyon Park — accumulate green algae on north-facing siding and moss on shaded driveways at a steady rate. Below you will find typical 2026 pricing by surface — house siding, driveways, decks, patios, and roofs — the difference between high-pressure washing and low-pressure soft-washing, a real itemized sample quote for a Bothell home, the neighborhoods local crews cover, ways to save, and a month-by-month cleaning calendar for north King County. If you are comparing nearby markets, see our pressure washing guides for Kirkland, Woodinville, and Kenmore as well.
| Lot Size | Per Visit | Monthly (4×) |
|---|---|---|
| Driveway / walkway (up to 600 sq ft) | $150 – $300 | $150 – $300 per cleaning |
| House siding soft-wash (1,500–2,200 sq ft) | $300 – $550 | $300 – $550 per cleaning |
| Deck or patio (200–500 sq ft) | $120 – $300 | $120 – $300 per cleaning |
| Roof soft-wash (1,500–2,500 sq ft) | $400 – $700 | $400 – $700 per cleaning |
Prices reflect 2026 rates from verified contractors serving the 98011, 98012, 98021 ZIP code area. Need an exact number? Get an instant Bothell pressure washing quote based on your actual lot.
Sample quote based on a typical Bothell property. Your actual price may vary — get your own Bothell pressure washing quote in 60 seconds.
Most reputable Bothell pressure washing companies include the following on a standard exterior cleaning. If a quote skips any of these, ask why before signing — they are considered standard in the north King County market.
Bothell pressure washing companies typically price work one of three ways. Choosing the right model for your project can save 15–30%.
| Pricing Model | Typical Price | Best For | Trade-offs |
|---|---|---|---|
| Per square foot | $0.15 – $0.45 / sq ft | Large driveways, big siding areas, or whole-house jobs where area is easy to measure | Hard to estimate yourself without measuring; minimums usually apply |
| Flat per-surface rate | $150 – $700 per surface | Most Bothell homeowners — a set price for the driveway or the house | Less precise for unusually large or stained surfaces |
| Annual maintenance plan | $250 – $550 / year | Shaded Norway Hill or Canyon Park homes with heavy north-facing algae | Ongoing commitment; overkill for dry, open lots |
Booking all your exterior surfaces in a single trip avoids repeat trip-charge minimums. Most Bothell crews discount 10–20% versus separate visits.
Bothell contractors calendars fill fast from May through August. Scheduling a spring slot in March or April often locks in last-year rates before the summer rush.
A soft-wash kills algae at the root, so results last 2–3 times longer than a high-pressure blast. Fewer repeat cleanings means lower lifetime cost.
Many Bothell crews knock $25–$50 off each home when two adjacent Norway Hill or Canyon Park properties book the same day, saving setup and drive time.
Bothell wooded lots grow moss quickly on north-facing roofs. A periodic roof soft-wash and zinc-strip install is far cheaper than premature shingle replacement.
| ZIP | Neighborhoods Covered |
|---|---|
| 98011 | Downtown Bothell, Blyth Park, North Creek, Kenmore border |
| 98012 | Canyon Park, Thrasher Corner, Mill Creek border |
| 98021 | Queensborough, Paradise Hills, Fitzgerald area |
A few Bothell and Washington-specific rules to know before booking pressure washing:
Verified contractors on Quotly serve pressure washing customers across Bothell and surrounding King County neighborhoods, including:
What to expect month-by-month for pressure washing in the Bothell, WA climate.
| Month | Recommended Activity |
|---|---|
| January | Wet, dormant season. Good time to book ahead; some crews offer winter discounts on covered surfaces. |
| February | Inspect for winter moss and algae buildup. Schedule early-spring slots before the rush. |
| March | Drier days begin. Ideal for roof soft-wash and moss treatment before spring growth accelerates. |
| April | Prime season opens. House soft-washing to remove winter algae; driveway cleaning as patios come back into use. |
| May | Peak demand begins. Book house and deck washing ahead of summer entertaining. |
| June | Dry, warm weather — best results for high-pressure flatwork and deck cleaning before sealing. |
| July | High season. Driveways, patios, and fences clean and dry quickly in the summer sun. |
| August | Continue exterior cleaning. Good month to wash and re-seal decks while wood is fully dry. |
| September | Late dry-season window. Whole-house wash to head off the fall algae bloom. |
| October | Rains return. Clear gutters, wash off summer grime, and apply roof moss treatment before winter. |
| November | Wet season. Focus shifts to roof and gutter work between storms. |
| December | Off-season. Limited weather windows; plan and book the coming year. |
Delicate surfaces — vinyl, painted wood, cedar siding, and roofs — require low-pressure soft-washing. Hard flatwork like driveways takes high pressure. The mix of surfaces on your Bothell home drives most of the price.
Pressure washing is largely area-based. Larger siding areas, long driveways, and multi-level Norway Hill homes needing extension equipment all add time and cost. Tight access can add 10–20%.
Bothell wooded lots produce heavy green algae on north-facing walls and black gloeocapsa streaks on roofs. Surfaces not cleaned in several years take extra solution and dwell time.
Roof soft-washing and second-story siding carry a premium for fall-protection setup. Expect roof work to be the highest line item on most quotes.
Bothell receives about 40 inches of rain annually, mostly October through March, so dry-season slots (May–September) are in high demand. Booking in the shoulder months can save money.
Pressure washing services in Bothell are subject to Washington State retail sales tax (10.3% in Bothell). Most contractors show this as a separate line item on quotes and invoices.
See pressure washing costs in Kirkland, WA, Woodinville, WA, Kenmore, WA, Redmond, WA, and Sammamish, WA.