Who Does Roof Moss & Algae Treatment in Mississauga?
Kill and prevent the black streaks (Gloeocapsa magma) and moss patches that shorten Toronto shingle life. Not every contractor in Mississauga is licensed for this. Here's the test.
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Who Does It — Moss Treatment in Mississauga
General handymen quote this work constantly. The problem shows up when your insurer asks for documentation nobody can produce.
Ask for the certificate numbers, the WSIB clearance, and two Mississauga references from the last 90 days. Anyone hesitating is telling you something.
In Ontario this work belongs to a WETT-certified contractor carrying at least $2M liability — $5M is the standard serious firms hold.
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
Who Does It FAQ — Mississauga
Is your team certified?+
Every technician is WETT SITE-Basic certified at minimum, with lead inspectors carrying SITE-Comprehensive credentials plus CSIA training.
Do you handle insurance paperwork?+
Yes. We photograph, document, and email inspection reports in the format Ontario insurers accept.
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.
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.
Who Does It in nearby cities
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Book who does it — Moss Treatment in Mississauga
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