Oak Bay's older homes and mature tree canopy make moss one of the most persistent maintenance problems in the neighbourhood. Heritage rooflines, many with cedar shake or decades-old asphalt shingles, need more care than a pressure washer allows. We use a low-pressure soft wash to clear moss, lichen, and algae at the root without stripping granules or touching the shingle surface underneath. We cover the whole roof, bag anything that ends up in the gutters, and send photos of every slope before we leave.
No contracts. Free written quotes.

Local.
Greater Victoria only, no call centre
Flat rate.
Priced in writing before we start
Guaranteed.
We come back free if we missed a spot
Photos.
Before and after on every job
We quote flat-rate, never hourly.
Low-pressure application of a biodegradable solution that kills moss spores at the root rather than blasting growth sideways onto your gutters or neighbours' yard.
Older asphalt and cedar shake both need lower pressure and an adjusted solution concentration. We do not run the same recipe on every roof regardless of material or age.
Oak Bay has more cedar roofs than most neighbourhoods. Cedar needs a milder mix and a longer dwell time. We adjust for it.
Anything the rinse pushes into the gutters gets bagged and cleared before we leave. No half-done finish.
Each slope photographed before and after, sent with notes on anything worth knowing about: cracked flashing, lifted edges, worn patches.
A top-ridge zinc or copper strip slows regrowth on shaded north-facing slopes. Worth adding on Oak Bay lots with heavy Douglas fir or oak cover.




Typical ranges. Your exact flat rate goes in your written quote.
Heavy lichen, steep pitch, or difficult access may add a small surcharge. We confirm the total in writing before we start.
Don't see yours? Send the form below and we'll answer it.
Soft washing at low pressure does not. Pressure washing very often does. Most manufacturers require regular cleaning to keep the warranty active, and the maintenance spec they reference is low-pressure application. That is how we work.
Yes, and we adjust the method for it. Cedar is more sensitive than asphalt shingles, so we run a milder solution concentration and allow a longer dwell time before rinsing. We do not treat cedar the same as a standard asphalt roof.
Most Oak Bay homes take two to four hours, depending on roof size and how much moss and lichen have built up. If we are adding a zinc or copper strip, allow a bit more time for application and the required dwell period. We will give you a specific estimate at quote time based on what we see.
In Victoria's climate, expect two to four years without a preventive treatment. With a zinc or copper ridge strip installed, many homes go three to five years before a full re-clean is needed. Roof pitch, shade from trees, and how often gutters overflow all push that number in one direction or the other.
No. Roof cleaning is exterior only. Leave us clear access to the perimeter and a note about the gate if there is one. We will send the photo report when the job is done.
Same flat-rate pricing, same standard, across Greater Victoria.
Send us a few details and we'll come back with a flat rate, usually within 48 hours.