Roof moss removal in Greater Vancouver
Moss is not a cosmetic problem on a roof. It lifts the shingle edges, holds water against the deck underneath and shortens the life of the whole thing. We treat it. We never put a pressure washer on it.
What the job includes
- Full roof treated with a moss-killing solution applied at low pressure
- Loose moss cleared by hand and off the roof, not washed into your gutters
- Gutters and downspouts checked and cleared of what comes down
- Roof valleys and the shaded north slope given extra attention
- Walkways and driveway rinsed off afterwards so nothing is left staining the concrete
Anything outside this gets quoted separately and shown to you before we start. We do not add line items after the fact.
What moss actually does to a roof
Moss holds water. That is the whole problem. A dry shingle sheds rain and lasts its rated life, and a shingle with moss growing along its edge stays damp more or less permanently through a Lower Mainland winter.
As it thickens, moss physically lifts the bottom edge of each shingle, which breaks the seal and lets wind and water get underneath. It also traps the granules that wash off the surface, and those granules are the layer protecting the asphalt from UV. Once they are gone the shingle degrades quickly.
This is why roof work here is worth doing before it looks bad rather than after. Replacing a roof early because of moss is an expensive way to save a few hundred dollars.
Questions we get asked
Are you going to pressure wash my roof?
No. Pressure washing a shingle roof strips the protective granules off the surface and can void the manufacturer warranty. It makes the roof look clean immediately and takes years off its life. We treat the moss and let it die back and wash off naturally.
How long until the roof looks clean?
The moss dies within days but takes weeks to fully weather off, and a few rain cycles to wash clear. If you want it visually clean immediately, that is a hand-clearing job and we will quote it separately. Anyone promising an instant spotless roof from a wash is using pressure on it.
How often should this be done here?
Most Greater Vancouver roofs benefit from treatment every two to three years, and sooner if you are under heavy tree cover or on the North Shore. Zinc or copper strips at the ridge can stretch that interval.
Do you do the gutters at the same time?
Yes, and we would recommend it. Moss coming off a roof goes somewhere, and that somewhere is your gutters. Doing both together is cheaper than doing them as two visits.
Other things we clean
Driveway & Patio Cleaning
Pavers, concrete and stone, cleaned to an even finish with the moss pulled out of the joints.
From $199House Washing
Low-pressure soft washing for vinyl, stucco, Hardie board and brick.
From $449Gutter Cleaning
Cleared out, flushed through, and the outside faces brightened.
From $229Send a photo, get a flat price.
Most quotes go out the same day. We give you one number before we start, and it is the number you pay.