Nanaimo's wet climate makes moss and algae growth inevitable. Our professional soft washing service removes moss, lichen, and black algae safely — protecting your roof and extending its lifespan.
What We Clean
From moss removal to full soft wash treatments, we restore your roof's appearance and protect its integrity.
Complete removal of moss, lichen, and black algae from asphalt shingles, cedar shakes, and tile roofs.
Low-pressure soft wash method with biodegradable solutions — safe for all roof types and surrounding landscaping.
Post-cleaning zinc strips slow future moss regrowth, extending the results of your roof cleaning.
Specialized cleaning for cedar shake and wood roofs using gentle techniques that preserve the wood's natural oils.
Remove oxidation, staining, and biological growth from metal roofs without scratching or damaging the surface.
Post-roof-cleaning gutter flush removes all debris washed down during the cleaning process.
Why Moss Bros.
Complete liability coverage on every roof cleaning job.
Biodegradable solutions safe for plants, pets, and your family.
We work in all weather conditions — rain or shine.
Guaranteed results on every residential and commercial roof.
What Nanaimo Customers Say
"Moss Bros. removed years of thick moss from our Nanaimo roof. Used soft washing — no damage to shingles at all. The roof looks brand new and the crew was excellent."
Paul N.
"Our cedar shake roof had significant moss growth. Moss Bros. treated it safely and professionally. Several months later it still looks great. Would 100% recommend."
Diane F.
Common Questions
Roof cleaning in Nanaimo typically ranges from $300–$800 depending on roof size, pitch, and level of moss/algae buildup. We provide free, no-obligation quotes — call 778-744-4021 or fill out our online form.
We use soft washing — a low-pressure technique combined with eco-friendly, biodegradable cleaning solutions. Pressure washing on roofs can damage shingles and void warranties. Soft washing is safer, more effective, and longer-lasting.
Nanaimo's wet coastal climate accelerates moss and algae growth. We recommend roof cleaning every 1–3 years depending on your roof's exposure to shade and moisture. Regular cleaning extends roof life and prevents costly repairs.
No — our soft washing method uses low pressure that is safe for all roof types including asphalt shingles, cedar shakes, metal, and tile. We never use high-pressure washing on roofs.
Yes. Moss roots penetrate shingle granules, cause moisture retention, and can lead to rot, leaks, and structural damage over time. Regular roof cleaning protects your investment and can add years to your roof's lifespan.
Yes — Moss Bros. provides roof cleaning throughout Nanaimo, Parksville, Lantzville, Ladysmith, Cedar, Qualicum Beach, and the surrounding Vancouver Island region.
Get a free roof cleaning quote — we respond within minutes
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