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Serving Puyallup & the South Sound

Professional Roof Cleaning Without Damaging Your Shingles.

Moss, algae and buildup removed safely. We lift the heavy growth off by hand and kill what’s left at the root. No pressure blasting, ever.

  • Soft wash, never blasted
  • Moss killed at the root
  • Free drone inspection
  • Shingle-safe guarantee

Moss Isn't Just Sitting There

Under our trees and our rain, moss doesn’t stay on top of the shingles. It gets underneath them.

It lifts the shingles

Moss creeps under the bottom edge of a shingle and pushes it up as it grows. Once that edge is lifted, wind gets under it and rain gets past it.

It holds water on the roof

A moss mat works like a sponge lying on your shingles. It keeps them damp between rains, right through the months when they never get a chance to dry.

It takes years off the roof

Granules wash away, the mat spreads across the north slope, and a roof that should have had years left starts leaking at the valleys and the edges.

Cleaning a roof costs a fraction of replacing one.

We soft wash. We never pressure blast a shingle roof.

Pressure strips the granules

A pressure washer takes the granules off your shingles along with the moss, and those granules are the shingle’s protection from the sun. Manufacturers call for low pressure, and blasting a roof can void the warranty on it.

Soft washing kills it at the root

A low-pressure treatment kills the moss and algae where they’re attached, instead of scraping the top off and leaving the roots to grow back by spring.

Then we treat it to stay clear

We finish with a prevention treatment so the next wet season doesn’t undo the work, and we clear the gutters of everything that came off the roof.

What a Roof Cleaning Actually Includes

  • Heavy moss and needles lifted off by hand before anything wet touches the roof.
  • A low-pressure soft wash that kills the moss and algae at the root.
  • A prevention treatment so the roof stays clear through the next wet season.
  • Gutters cleared of everything that came off the roof.
  • Landscaping covered, watched and rinsed while we work.
  • Photos of the finished roof and the walks swept and hauled clean before we go.

Steep roofs and tall two-storeys are normal around here. We’re set up for them, and you get a text when we’re on the way.

Two NW Pro Wash crew members with a ladder at a customer's house

Roofs We've Cleaned Around the South Sound

Real jobs, photographed before and after. Drag the slider across any photo.

The same roof after cleaning, an even grey across every course
Moss and needle build-up across a wide shingle roof
Before
After
Growth packed into every course of shingles, lifted off and treated.
The roof after cleaning, with the ridge and slopes clear
Fir needles covering a roof slope and ridge
Before
After
A season of needles across the slope and along the ridge cap.
The same roof after cleaning, clean shingles and clear gutter line
Needles, cones and moss covering a shaded roof
Before
After
A shaded roof under big firs, cleared of needles, cones and moss.

What Neighbors Say

from 271 reviews on our Google profile

They carefully removed the thick moss by hand and then treated the roof with a low-pressure soft wash solution that kills moss and algae at the root without damaging the shingles. They also applied a moss prevention treatment to help keep the roof looking great long after they left.

Mary Rosa Google review

… what I liked was it’s a soft wash that doesn’t hit the sides of the house, the windows, etc., with a lot of pressure. I was concerned about my plants and the two gentlemen that showed up today were extremely professional, very cooperative and communicative…

Neil Google review

Great job! Reasonable price. I have a steep roof and it was no problem. … I had my roof and detached garage de-mossed and treated, my house washed (looks freshly painted) and my porch and sidewalks pressure washed.

Lisa Contris Google review

Two Reasons to Book It Now

With every quote

Free drone inspection

We fly the roof before we price it, so you can see what’s actually up there — the moss, the needle build-up, the lifted shingles — instead of taking our word for it.

Why now

Book it before the rain settles in

The moss on your roof right now is about to spend five wet months lifting shingles and holding water against them. A fall cleaning means your roof goes into winter clear instead of coming out of it damaged.

Cameron in front of the NW Pro Wash truck

Locally Owned, and It's Our Crew on Your Roof

NW Pro Wash has been cleaning homes around the South Puget Sound since 2021. Cameron and the crew do every job themselves. Your house never gets handed off to a subcontractor, and the people who quoted the work are the ones who show up to do it.

We’re licensed and insured, we show up when we say we will, and you’ll know the moment we’re on the way.

License #NWPROPW764CW · Licensed & insured · Bonney Lake, WA

Get Your Free Roof Inspection

Tell us where the house is and we’ll fly the roof, send you the photos and give you a price. No one has to be home for the inspection.

(253) 290-0057

Call or text, whichever’s easier. Mon–Fri 8am–6pm · Sat 9am–5pm · Sun 9am–12pm

Where we work

Bonney Lake, Puyallup, South Hill, Enumclaw, Buckley, Wilkeson, Carbonado, Maple Valley, Covington, Kent, Renton, Federal Way, Des Moines, Normandy Park, Tacoma, Seattle and Issaquah.