Roof Cleaning Vancouver BC
Moss Removed. Roof Protected. Guaranteed.
Soft-wash roof cleaning and moss removal for homes, strata complexes and commercial buildings across Metro Vancouver. Moss and algae are treated without pressure, so the roof surface stays intact, backed by our moss-free guarantee.
- Fully Insured & WorkSafeBC Covered
- Experienced, Trained Crews
- Locally Owned & Operated
Moss Is Not A Cosmetic Problem
Moss holds water against the roof and grows under shingle edges and between tiles, lifting them and breaking the seal that keeps wind-driven rain out. On a Metro Vancouver roof that process runs year-round, because shaded slopes never fully dry.
Pressure washing removes the moss and, on asphalt shingle, the protective granules with it. We soft wash instead: a treatment applied at low pressure that kills the moss and algae, with heavy growth removed by hand and the rest carried off by weather over the following weeks. Slower to look perfect, and far better for the roof.
- 5+Years Serving Metro Vancouver
- 1,100+Jobs Completed
- $5MLiability Coverage
What's covered
Roofs We Treat
The treatment is the same in principle on every roof; the strength, dwell time and how we move on the roof change with the material.
-
Asphalt Shingle Roofs
The most common roof in Metro Vancouver and the one most damaged by pressure. Treated at low pressure so the granules that protect the shingle stay where they are.
-
Cedar Shakes & Shingles
Moss and debris lifted from the keyways by hand and gentle rinsing, then treated, so the wood can dry out instead of holding water.
-
Concrete & Clay Tile
Treated and rinsed with the crew working from the edges and ridges where possible, because tile cracks under foot traffic more readily than it looks.
-
Metal & Low-Slope Roofs
Algae, moss and debris cleared from standing-seam metal and low-slope membranes, with drains and scuppers checked while we are up there.
-
Strata & Townhome Complexes
Whole-complex programs scheduled by building, with condition photos for the maintenance file and notice lead time built into the plan.
Strata roof cleaning → -
Commercial & Low-Rise
Roof surfaces and drainage on commercial and low-rise buildings, scheduled around operating hours and documented for the property manager.
Commercial roof cleaning →
Before & After
See The Difference.
Real roof cleaning projects across residential, strata and commercial properties.
What's Included
Soft Wash Treatment
A solution applied at low pressure that kills moss, algae and lichen without stripping shingle granules or disturbing the roof surface.
Heavy Growth Removed
Established moss lifted by hand or gentle brushing where the roof allows, so the treatment reaches the surface underneath.
Gutters & Valleys Cleared
Valleys, gutters and downspouts cleared of dislodged moss, so the debris does not move into the drainage.
Moss-Free Guarantee
If moss returns to the treated area within the guarantee period, we treat it again at no charge. The term is confirmed in your written quote.
What to expect
How It Works
-
Get Your Quote
Tell us about the property and the work you need completed. We review the scope, access and site requirements, then provide a written scope and price before scheduling.
-
We Complete The Service
We coordinate scheduling and access, arrive as planned and complete the agreed scope using the appropriate equipment and cleaning method for the property.
-
Final Review & Documentation
We complete a final review, leave the work area tidy and provide completion photos or service documentation where applicable.
Already booked? Prepare for your service →
Tailored to your property
Roof Cleaning For Every Property Type
From individual homes to multi-building strata communities and commercial facilities, we tailor the scope, equipment and scheduling to the property and how it operates.
Explore by property type
Before you book
Five Questions Worth Asking
What to confirm before choosing a roof cleaning and moss removal contractor, along with how Flat Mate approaches each one.
Will you pressure wash the roof?
If the answer is yes, keep looking. Pressure strips the protective granules from asphalt shingles along with the moss, lifts cedar and cracks tile. It looks like a good result on the day.
Our answerNo. Roofs are soft washed: a low-pressure treatment, with heavy growth removed by hand.
What happens to the moss that comes off?
Dislodged moss ends up in valleys, gutters and downspouts. Ask whether clearing them is part of the job or a separate charge.
Our answerValleys, gutters and downspouts are cleared as part of the roof clean, and the debris leaves with us.
Are you properly insured and covered by WorkSafeBC?
Roof work is work at height. For strata and commercial properties in particular, ask for current documentation rather than a verbal yes.
Our answerFlat Mate carries $5 million in liability coverage and maintains WorkSafeBC coverage. Documentation is available on request.
How will you move on the roof?
Cedar, tile and older asphalt are damaged by careless foot traffic. Ask how the crew works the roof and where they stand.
Our answerFrom the edges and ridges where possible, with fall protection in place and treatment applied from ladders or the ground where the roof suits it.
What does the guarantee actually commit you to?
Every company says it guarantees its work. Ask what the guarantee covers, for how long, and whether it is written into the quote.
Our answerA moss-free guarantee: if moss returns to the treated area within the term stated in your written quote, we treat it again at no charge.
Roof Cleaning FAQs
How often should a roof be treated for moss?
Most roofs in Metro Vancouver benefit from treatment every two to three years, sooner on shaded, north-facing or tree-covered slopes where moisture lingers. Strata complexes often schedule buildings on a rotation so the whole property stays on the same cycle.
Why won't you pressure wash the roof?
Pressure strips the protective granules from asphalt shingles along with the moss, and can lift cedar and crack tile. It looks effective on the day and takes years off the roof. Soft washing removes the growth without that damage.
How long until the roof looks clean?
The treatment kills the moss quickly, and heavy growth is removed by hand on the day. The remaining dead material weathers off over the following weeks, so expect a visible change within days and a fully clear roof in about a month.
What does the moss-free guarantee cover?
If moss returns to the treated area within the guarantee period, we treat it again at no charge. The exact term is confirmed in your written quote.
Do you treat cedar, tile and metal roofs?
Yes. The approach is the same in principle, and the solution strength, dwell time and how the crew moves on the roof are adjusted for the material. Cedar and tile in particular are worked from the edges and ridges where possible.
How much does roof cleaning cost in Metro Vancouver?
Pricing depends on the roof area and pitch, the material, how established the moss is, the number of storeys and access. We provide a clear written quote before scheduling so the scope and price are established in advance.
From The Blog
Planning A Roof Cleaning Project?
Tell us about the roof, the material and roughly how much moss you can see. We'll review the scope and provide a written scope and price before scheduling.
Roof Cleaning Reviews
What Our Customers Are Saying
Real feedback from roof cleaning projects across Metro Vancouver.
Also from Flat Mate