Roof Moss & Algae Treatment Cost in Markham
Kill and prevent the black streaks (Gloeocapsa magma) and moss patches that shorten Toronto shingle life. Fixed 2026 pricing, written down before the crew starts.
Your quote — in 3 quick taps.
A certified expert calls or texts back in under 15 minutes. No spam. Fixed-price written quote.
Cost — Moss Treatment in Markham
Insurance-grade jobs cost 10-15% more than standard visits because of the documentation and time on paper.
Most Markham jobs land inside a predictable price band. Complexity, access, and system size are the three real drivers.
The written quote is always fixed — we absorb the risk if the job runs long. That's the whole point of certified pricing.
What's included
- ✓ Kills the algae at the root
- ✓ Removes moss patches by hand — no scraping
- ✓ Zinc strip prevents 8–10 years of regrowth
- ✓ Extends shingle life by ~30%
- 1. Apply shingle-safe algaecide, dwell 20 min
- 2. Hand-brush any moss patches
- 3. Rinse with low-pressure fan spray
- 4. Install continuous zinc strip at ridge
Cost FAQ — Markham
Do you carry insurance?+
$5M general liability plus WSIB coverage on every crew. Both certificates are emailed before we set foot on site.
Are your quotes really fixed?+
Yes. Every written quote is fixed — we absorb the risk if the job runs long. That's the whole point of certified pricing.
Can I finance the work?+
Yes. 0% promo financing is available on qualifying projects — approvals in minutes with no credit pull.
Do you offer a warranty?+
Every job carries a 5-year workmanship warranty. Parts carry the manufacturer's warranty on top.
Is your team certified?+
Every technician is WETT SITE-Basic certified at minimum, with lead inspectors carrying SITE-Comprehensive credentials plus CSIA training.
Cost in nearby cities
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Book cost — Moss Treatment in Markham
Free written quotes. Same-week booking across the GTA.
Quote in 3 quick taps.
Service · urgency · contact. A chimney expert replies in under 15 minutes.
- Fixed-price written quote
- No spam, no sales calls
- WETT & CSIA certified