Serving the Seattle Eastside
Pressure Washing
Pressure Washing for Eastside driveways, patios, and pavers — done right. Licensed, Bonded, and Insured.
Concrete is porous, and the Pacific Northwest climate is relentless. Moss, algae, oil stains, and oxidized concrete aren't cosmetic problems — they're active degradation. A driveway that looks dark gray after five years isn't just dirty: the surface has been colonized by organisms that are slowly breaking down the concrete. Most Eastside homeowners are surprised by how light-colored their concrete was when we're done. They'd forgotten what it looked like new.
Why Eastside Homeowners Choose PNW Softwash for Pressure Washing
We use commercial surface cleaners — not wand-only washing — for flat concrete work. Surface cleaners apply consistent, overlapping pressure across the full width of the pass, which eliminates the striping and tiger-striping that's common with wand-only pressure washing. The result is a uniform clean you can actually see from the street, not a pattern of clean lines and missed strips.
For oil stains and grease, we pre-treat with a biodegradable degreaser, dwell for the right amount of time based on the stain type, and then pressure wash for maximum lift. For driveways with heavy oil staining — typical near garage entrances — this makes a visible difference versus pressure washing alone.
The Difference Is Visible
Real results from homes across the Eastside.
Driveway — Sammamish
Patio — Bellevue
Walkway — Maple Valley
Drag the handle to reveal the transformation. Real homes, real results.
What Our Pressure Washing Service Includes
Standard pressure washing services include: driveways and parking pads, walkways and front paths, patio surfaces (concrete, paver, and stamped), retaining walls, pool surrounds, and concrete steps. We can also pressure wash brick and natural stone — we adjust pressure down and use appropriate detergents to avoid surface damage on these materials.
We do not pressure wash wood decks — deck and fence washing uses a soft wash process (see Deck & Fence Washing). We do not pressure wash roofs — high pressure damages shingles and voids manufacturer warranties.
Pricing for a standard two-car driveway starts at $325–$395. Full driveway + walkway + patio packages are typically $525–$800. We price by the square foot and by the level of soiling — we'll give you a firm number before starting.
What Homeowners Say
★★★★★
“We recently had our siding cleaned along with our driveway and backyard and I can't say enough good things about this company! From start to finish, they were professional, responsive, and incredibly detail-oriented. Everything looks brand new again! They took their time, made sure everything was done right and left everything spotless when they finished. If you're looking for a company that truly cares about quality and takes pride in their work, I highly recommend them. We'd definitely use them again.”
— Kristen W
★★★★★
“PNW Soft Wash did an absolutely outstanding job on my brick surfaces. Their professionalism and attention to detail are truly exceptional. They take the time to understand the material they're working with, and their deep knowledge of brick washing shows in every part of the process. What impressed me most is how committed they are to doing the job right. They don't rush, they don't overlook anything, and they go to great lengths to make sure every brick is cleaned safely and thoroughly. You can tell they genuinely care about the quality of their work and the long-term condition of your home. If you want a team that is detail‑oriented, highly skilled, and dedicated to delivering the best results possible, PNW Soft Wash is the company to hire. I couldn't recommend them more.”
— I Smiga
Pressure Washing — Every City We Serve
Select your city for local pricing, neighborhood-specific details, and free same-day quotes.
Pressure Washing — Frequently Asked Questions
Honest answers from a Licensed, Bonded, and Insured crew that works on the Eastside every week.
How much does driveway pressure washing cost in King County?
- Professional driveway pressure washing in King County typically runs $325–$600, depending on the size and condition of your surfaces. Compare that to concrete replacement at $8,000–$15,000 or paver installation at $12,000–$25,000. Regular maintenance is a fraction of the cost of replacement, and we offer a bundled discount when combined with other services — save 10% when you add house or roof washing to your driveway cleaning.
Is pressure washing safe — will my driveway be slippery afterwards?
- Actually, the opposite. Pressure washing removes the slippery moss, algae, and organic growth that create dangerous conditions when your concrete gets wet. After professional cleaning, your driveway, walkways, and patio are genuinely safer to walk on. Improved safety is one of the biggest benefits.
How often does my driveway or concrete need pressure washing in the Pacific Northwest?
- It depends on your conditions. Driveways in heavy shade or high-traffic areas benefit from cleaning every 12–18 months. Moderate conditions: every 2–3 years. Open sun exposure: every 3–5 years. Watch for signs like slippery moss, visible staining, embedded dirt, or faded appearance — those mean it's time.
What PSI do you use?
- We adjust pressure based on surface type and contamination level. For most concrete and hard surfaces, 2,000–3,000 PSI provides optimal cleaning power without causing damage. For more delicate surfaces, we dial it down and softwash at 165 PSI. We also use surface cleaners for flatwork, which provide even, consistent pressure across the surface rather than a concentrated stream from a wand.
Can professional pressure washing remove oil stains from my driveway?
- Most oil stains can be significantly reduced or eliminated using specialized degreasers and appropriate pressure. Deep stains that have soaked in over a long period may not come out 100%, but we'll give you honest expectations before we start. We assess every surface for its specific material, condition, and cleaning needs — no guesswork.
Ready to Book Pressure Washing?
Free same-day quotes. Serving the entire Seattle Eastside.