Roof Moss & Algae Treatment Cost in Caledon
Kill and prevent the black streaks (Gloeocapsa magma) and moss patches that shorten Toronto shingle life. Real numbers from real jobs finished in the last 90 days.
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Cost — Moss Treatment in Caledon
Second-storey and heritage properties add a modest premium for access and containment gear.
Insurance-grade jobs cost 10-15% more than standard visits because of the documentation and time on paper.
Most Caledon jobs land inside a predictable price band. Complexity, access, and system size are the three real drivers.
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 — Caledon
How fast can you book me in?+
Same-week is standard across the GTA. Same-day is available if you book before 11 AM most weekdays.
Can I get a quote without a site visit?+
For most standard services, yes — three photos and your postal code is enough for a firm written number.
Do you offer a warranty?+
Every job carries a 5-year workmanship warranty. Parts carry the manufacturer's warranty on top.
Do you work weekends?+
Saturday slots book out weeks in advance. Sunday is emergency-only. Book early for weekends.
Do you carry insurance?+
$5M general liability plus WSIB coverage on every crew. Both certificates are emailed before we set foot on site.
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Book cost — Moss Treatment in Caledon
Free written quotes. Same-week booking across the GTA.
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