Roof Cleaning in Damascus, Oregon — Moss Removal for the Metro's Last Big Acreage Lots
Eco-friendly, US-made, no-bleach moss treatment for Damascus's heavily fir-canopied half-acre-plus properties — no city hall required, just a short drive from JNR's Happy Valley shop.
A Damascus roof has Damascus problems.
Damascus is a city that stopped being one. Incorporated in 2004, voters chose to disincorporate in 2016, and after a four-year legal fight the Oregon Supreme Court reinstated that vote on September 3, 2020 — today it's a Clackamas County census-designated place with no city hall, no city building department, and no city government of any kind. What that history left behind is acreage: across the CDP's 17.62 square miles, lots in areas like Damascus Heights commonly run from a half-acre to more than two acres, some of the last sizeable forested parcels still inside the metro's urban growth boundary.
That's the whole roofing story in one line: unbroken fir and cedar canopy over rural-sized lots that never got thinned for subdivision streets. A roof under that kind of canopy stays shaded and damp far longer between rains than anything a few miles up the road in Gresham or Happy Valley — and Happy Valley is close, just five miles and an eight-minute drive from JNR's shop, since Damascus borders it directly. JNR has listed Damascus on its published service area since at least August 2013.

Every service, dialed to Damascus homes.
Roof Cleaning & Eco-friendly Moss Treatment
Damascus's half-acre-to-two-plus-acre lots sit under heavy, unthinned fir and cedar canopy that never got cleared for subdivision streets — roofs here hold shade and moisture longer than almost anywhere else JNR works.
Learn more »Gutter Cleaning & Repair
On properties with that much canopy overhead, gutters fill fast; JNR clears them thoroughly on Damascus's rural-sized lots, not just a quick pass.
Learn more »Pressure Washing
Damascus homes — from Damascus Heights acreage to smaller lots along the Highway 212 corridor — get a soft, low-pressure wash suited to their often custom or older roofing.
Learn more »Roof Repairs
With no city building department of its own, Damascus runs on Clackamas County code; JNR repairs flashing and shingles to that standard.
Learn more »Roof Maintenance Plan
A standing maintenance plan matters most on Damascus's forested acreage, where moss can re-colonize a roof within a single wet season.
Learn more »Tree Trimming
JNR trims back the fir and cedar canopy that makes Damascus's large lots so private — and so shaded — to slow moss regrowth at the source.
Learn more »Proof — not promises.
NEARBY WORKJNR's published service-area list has named Damascus since at least August 2013: "Roof cleaners in Happy Valley, Portland, Beaverton, Clackamas, Milwaukie, Damascus, Sandy, Gresham, Aloha, Wilsonville, Tualatin, West Linn, Lake Oswego, Oregon City, Etc." Damascus has been part of JNR's stated territory that long.
— JNR service-area blog post, Aug 7, 2013
DOCUMENTED JOBThe closest documented job with real, city-named before-and-after photos on file is in adjacent Boring — literally across Damascus's eastern edge — where JNR did a dedicated roof-cleaning and maintenance-plan job.
— JNR company blog, Aug 31, 2012
Close enough to show up.
JNR's shop sits right on Damascus's edge — Happy Valley borders it directly, about five miles and an eight-minute drive via SE Sunnyside Road. Most Damascus jobs are closer to home than almost any other city on the list.
The treatment matters here.
On Damascus's acreage properties — often with a well, livestock, or a big garden and no municipal storm system to dilute anything — what goes on the roof matters more than almost anywhere else JNR works. The eco-friendly, US-made treatment skips bleach, zinc, and peroxide entirely, so it kills moss at the root without adding runoff to a property that handles its own water and soil.
Neighborhoods & areas served.
Asked by your neighbors.
Does JNR still serve Damascus even though it isn't a city anymore?
Yes — disincorporating in 2020 changed who handles Damascus's permits and roads (Clackamas County now), not who cleans roofs. JNR has listed Damascus on its service area since at least August 2013 and still works acreage properties there regularly.
Why does moss grow faster on Damascus roofs than in Gresham or Happy Valley?
Damascus's large lots — often a half-acre to two-plus acres — sit under heavy, largely unthinned fir and cedar canopy that never got cleared for subdivision streets. That shade keeps roofs wet far longer between rains than a more built-out neighborhood a few miles away.
Is the moss treatment safe for a property with a well, livestock, or a garden?
Yes — JNR's eco-friendly, US-made treatment has no bleach, no zinc, and no peroxide, which matters most on acreage without a municipal storm system to dilute runoff before it reaches the ground.
Has JNR actually documented work near Damascus?
The closest documented job with real, city-named before-and-after photos on file is in adjacent Boring, right across Damascus's eastern edge, from an August 2012 roof-cleaning and maintenance-plan job.
How far is Damascus from JNR's shop?
About five miles and an eight-minute drive via SE Sunnyside Road — Happy Valley borders Damascus directly, so it's one of the closest jobs on the schedule. Call (503) 432-9093 for an estimate.
Does JNR handle large acreage lots, or just standard suburban roofs?
Both — Damascus Heights properties running a half-acre to two-plus acres are a regular part of the route, not a special case.
Get your free Damascus roof inspection.
We answer every call. Photo-documented inspection, honest recommendation, no pressure — and if your roof doesn't need us yet, we'll tell you so.