Getting True Apples-to-Apples Comparisons — A Vancouver Island Homeowner Guide
Getting three quotes for roof treatment is good practice — but only if you're comparing the same service. A $300 scraping quote and an $800 biocide treatment quote are not comparable: they're different services with different outcomes, different risk profiles, and different long-term costs. This guide gives you the framework to compare quotes accurately.
Before any price comparison, ask each contractor three questions: (1) What method are you using? (biocide treatment, soft washing, pressure washing, or scraping) — the answer determines what you're actually buying; (2) What is the guarantee period and specific terms? — a 2-year written guarantee has real value; no guarantee has real cost; (3) What products are you applying, at what concentration? — professional biocide applicators use specified products at specified dilution rates; anyone who can't answer this isn't using professional chemistry. Once you have these answers, you can compare like for like.
Professional biocide treatment quotes from legitimate companies include: product cost (commercial biocide at professional concentration), trained applicator time (2–4 hours for a standard residential roof), equipment (soft-wash system, PPE, containment), insurance cost, and written guarantee. Quotes below $350 for a full residential roof cannot include all of these at professional standards. Ask for a breakdown: product cost, labour, and what the guarantee covers. The cheapest legitimate biocide treatment for a typical Victoria home is approximately $400–$500 — quotes below this level warrant scrutiny.
Not necessarily. Choose based on method, credentials, and guarantee — not price tier. A mid-priced contractor using pressure washing is a worse choice than a higher-priced specialist using professional biocide. Use price as one input, not the primary decision factor.
About Roof Labs Canada
Roof Labs Canada provides roof treatment, moss control, black streak treatment, and soft washing for Vancouver Island and the Gulf Islands. As Roof Labs Canada, we bring marine-engineered formulas, 9+ years of island experience, and a written 2-year guarantee to every project.
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