- Call Us at 360-915-3282
- Address: Olympia, WA
- License Number: ZACHSPW813QH
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zachpitzler@yahoo.com
Olympia, Lacey and Tumwater, WA
Roof Moss Removal in Olympia, WA
Zach’s Power Washing provides roof moss removal in Olympia, WA and nearby Lacey, Tumwater and the rest of Thurston County. We soft wash your roof with a treatment that kills moss, algae and lichen, without putting pressure or water flow on the shingles. The dead moss turns white and washes away with the wind and rain, and our 2-year guarantee means it won’t grow back before then.
Open Monday to Saturday, 9 am to 5 pm
2-Year Guarantee
No moss regrowth for 2 years
No Pressure Washing
A gentle soft wash on every roof
100+ Reviews
From local homeowners
Licensed
License # ZACHSPW813QH
Why Roofs in Olympia Grow So Much Moss
It’s the Pacific Northwest, and the climate can be brutal on a roof. Olympia gets around 50 inches of rain a year, most of it between October and April, and the tall firs and cedars around so many homes keep roofs in the shade. A roof that hardly ever dries out is the perfect place for moss to grow.
It usually starts as a thin green film on the shady side of the house or along the bottom edges of the shingles. Give it a couple of wet winters and it turns into thick clumps that hold water against the roof like a sponge. Those clumps work their way under the shingle edges and lift them, which lets rain get underneath. The result is loose granules, leaks and a roof that wears out years before it should.
Getting rid of the moss, algae and lichen early is one of the best ways to add years to your roof’s life. It also makes the whole house look better from the street.
Roof Moss Removal at a Glance
- MethodSoft wash treatment with no pressure washing
- What it killsMoss, algae, lichen and other growth
- ResultsMoss dies and turns white, then washes away over 3 to 6 months
- GuaranteeNo moss regrowth for 2 years
- Service areaOlympia, Lacey, Tumwater and Thurston County
- HoursMonday to Saturday, 9 am to 5 pm
- Phone360-915-3282
Signs Your Roof Needs Moss Removal
You don’t have to climb a ladder to check. Take a walk around the house, or look out an upstairs window, and watch for these:
- Green or yellow patches, especially on the north side of the roof or under trees
- Clumps of moss sitting along the shingle edges, ridges or valleys
- Shingles that look lifted, wavy or uneven
- Gray, crusty spots of lichen or dark streaks of algae
- Moss, fir needles and shingle granules collecting in the gutters
- Gutters or downspouts that overflow during a heavy rain
If you notice any of these, it’s worth having the roof treated before the moss gets thick enough to do real damage.
How Our Roof Moss Removal Works
We use a technique called soft washing. Instead of blasting moss off with a pressure washer, we treat the whole roof with a solution that kills the moss, algae and other growth where it sits. We don’t put pressure or water flow on your roof, because that can take years off its life and even cause leaks.
1
Brush off the big clumps
We remove the larger chunks of moss with a soft bristle brush. That gets the heaviest growth off without tearing at the shingles.
2
Treat the entire roof
The whole roof gets a soft wash treatment, not just the spots you can see from the ground. It kills the moss along with algae, lichen and other growth.
3
Watch the moss turn white
The moss dies and turns white soon after it’s treated. That color change is how you know the treatment is working.
4
Let the weather finish the job
Over the next 3 to 6 months, wind and rain wash the dead moss away and leave your roof looking good as new.
Because nothing gets blasted off, your shingles keep the protective granules that shield them from sun and weather. The Asphalt Roofing Manufacturers Association warns that high-pressure washing is likely to damage asphalt roofing, which is one more reason we stick with soft washing. Some of the dead moss will end up in your gutters as it comes off, so it’s a good idea to schedule gutter cleaning once the roof has cleared up.
Seeing Moss on Your Roof?
The sooner it’s treated, the less damage it can do. Send us a message for a quote or call Zach’s Power Washing today.
Moss Removal vs. Replacing Your Roof
Plenty of roofs that look like they need replacing are really just covered in moss. If the shingles underneath are still flat and solid, having the moss treated costs a small fraction of a new roof. Replacing an asphalt roof on a typical Thurston County home usually runs into five figures once you add up tear-off, disposal, materials and labor.
Moss removal can’t repair shingles that are already curling, cracked or worn down to the mat. If you’re seeing that across large parts of the roof, get a roofer’s opinion first. If the roof still has good years left, removing the moss helps it last. You can read more about how we care for roofs on our roof cleaning in Olympia page.
When to Schedule Roof Moss Removal
Moss grows fastest during our wet months, from fall through spring. Having the roof treated in late summer or early fall clears it before the heavy rain sets in, and spring is a good time to deal with a winter’s worth of new growth.
If your roof already has thick moss, there’s no reason to wait for a certain season. The treatment works best with a stretch of dry weather after it goes on, so we’ll help you pick a good day.
Roof and Gutter Project Photos
Here are a few photos from roof and gutter jobs we’ve done. You can see more of our work in our project gallery.
What Our Customers Say
Zach did a great job cleaning my roof and chain link fence. My house is surrounded by tall trees so the backside of my roof and my backyard fence get a lot of moss and mildew buildup… I’m happy that the moss on my roof is dead and falling away. Zach was also respectful of the plants around my home with regard to the water runoff. I will definitely hire him again.
Ang S.
Zach was very professional and easy to work with. I had other scheduling issues and he worked with me. The workers were very careful setting up around my house, flower beds, and garden area.
Shauna O.
Roof Moss Removal in Olympia, WA and Nearby Cities
Zach’s Power Washing is a local pressure washing company in Olympia, and we remove roof moss for homes and businesses throughout Thurston County.
Olympia
From the Westside and Eastside to South Capitol, Cooper Point and Boston Harbor, including the shady lots under big firs where moss grows fastest.
Lacey
We handle moss removal in Lacey, WA too, from Hawks Prairie and Tanglewilde to the homes around Long Lake, Hicks Lake and Pattison Lake.
Tumwater
We also treat roofs in Tumwater, including Tumwater Hill, Bush Prairie and the Black Lake area.
Thurston County
Outside the city limits? We serve other parts of Thurston County as well. Call 360-915-3282 and we’ll tell you if we can get to your address.
More Exterior Cleaning Services
Moss doesn’t stop at the roof. We can help with the rest of your property too.
Roof Cleaning
A full roof cleaning for algae streaks, lichen and buildup, using the same no-pressure approach.
Gutter Cleaning
We clear out moss, needles and debris so your gutters carry rainwater away from the house.
House and Building Soft Washing
Gentle soft washing that removes dirt, algae and stains from siding, stucco, brick, wood and vinyl.
Concrete Cleaning
Moss and black algae make driveways, walkways and patios slippery. We get them clean and safer to walk on.
Roof Moss Removal FAQs
How much does roof moss removal cost in Olympia, WA?
The price depends on the size and pitch of your roof and how much moss is on it. A small single-story roof with light growth will cost less than a steep two-story roof covered in thick moss. Either way, it’s a small fraction of what a new roof costs. For an exact price, request a quote or call 360-915-3282.
Do you pressure wash roofs to remove moss?
No. We soft wash roofs with a treatment that kills the moss, and we don’t put pressure or water flow on the roof. Pressure washing can strip the granules off asphalt shingles, take years off the roof’s life and even cause leaks.
How long does it take for the moss to go away?
The moss dies and turns white soon after the treatment. We brush off the larger chunks, and over the next 3 to 6 months the wind and rain wash the rest away. It’s gradual, but it’s far easier on your roof than scraping or blasting the moss off.
Will the moss grow back?
Not for 2 years. We guarantee that no moss will grow back for 2 years after your roof is treated. In our wet climate, moss will eventually return on most roofs, especially shady ones, so plan on another treatment down the road to keep it under control.
Is the treatment safe for my plants and garden?
We use safe cleaning agents and take care around landscaping. Customers often mention how careful we are with their plants, flower beds and gardens. If you have pets, keep them inside while we’re working, and let us know about anything delicate near the house.
Do you offer moss removal in Lacey and Tumwater?
Yes. Along with Olympia, we remove roof moss in Lacey, Tumwater and other parts of Thurston County. Call 360-915-3282 if you’d like to check whether we cover your address.
Can I remove moss from my roof myself?
You can, but be careful. Don’t pressure wash the shingles, and don’t scrape hard enough to pull off granules. A wet, mossy roof is slippery and dangerous to walk on, so stay on a ladder if you can. If your roof is steep, two stories or covered in thick moss, it’s usually safer and faster to have us take care of it.
Can you also clean my gutters, siding and driveway?
Yes. As the dead moss washes off the roof, a lot of it lands in the gutters, so gutter cleaning is a smart next step. We also offer house and building soft washing for siding and concrete cleaning for mossy driveways, walkways and patios.
Still Have Questions?
Every roof is a little different. Call us or send a message and we’ll talk through what you’re seeing on yours.
Get a Quote for Roof Moss Removal in Olympia, WA
Tell us a little about your roof through our contact form, or give us a call. We’ll answer your questions and get you a quote.
Open Monday to Saturday, 9 am to 5 pm. License # ZACHSPW813QH
