Great Victoria Roofing home

Sources

93 references, each with what it supports on this site and the date we last checked it.

The tables behind these figures (cost per square foot, repair price bands, lifespans and permit rules) are published as citable datasets with CSV and JSON on the open data page.

Source policy: government and climate data first; industry bodies for practice; contractor cost guides only as calibration ranges, always flagged. Where a municipality publishes nothing about re-roofing permits, we say so rather than inventing a rule. Reddit and forum evidence is used for demand (which questions exist), never for facts.

Government and regulatory

  1. OHS Guidelines Part 11 — Fall Protection — WorkSafeBC · accessed 2026-09-10

    Fall protection required at 3 m (10 ft) or more; low-slope (≤4/12) work must stay 2 m from unguarded edges without other protection; slopes of 8/12 and steeper require personal fall protection or a safety net.

  2. Falls from elevation — WorkSafeBC · accessed 2026-09-10

    Fall-protection hierarchy (guardrails, restraint, arrest) and residential construction fall-prevention resources.

  3. Charging and collecting PST — real property contractors — Government of British Columbia · accessed 2026-09-10

    Real-property contractors pay PST on the materials they install and do not charge PST to the customer; a homeowner's roofing invoice carries 5% GST only. Page updated 2025-11-27.

  4. RC4052 GST/HST Information for the Home Construction Industry — Canada Revenue Agency · accessed 2026-09-11

    GST (5% in BC) applies to contractors' supplies of renovation and construction services, including roofing contracts. (Replaces the retired GI-089 link, 2026-09-11.)

  5. Homeowner Protection Act & Regulations — BC Housing · accessed 2026-09-10

    Residential builder licensing framework in BC. Whether a roof-only contract triggers licensing is not confirmed; we do not assert it.

  6. Building Permits — City of Victoria · accessed 2026-09-10

    Permit page lists no re-roofing exemption or requirement; contact 250-361-0344 / permits@victoria.ca. Solar PV exemption conditions are the only roof-related item.

  7. Permit Q&As — District of Saanich · accessed 2026-09-10

    Exemption list does not mention roofing either way; inspections 250-475-5457 / inspections@saanich.ca.

  8. Residential Permits — District of Saanich · accessed 2026-09-10

    Permit categories (new build, addition, renovation).

  9. Building Permits — City of Langford · accessed 2026-09-10

    Permit required for 'finishing or altering the interior and/or exterior of a structure'; roofing not named. building@langford.ca, 250-474-6692.

  10. Renovations & Additions — City of Colwood · accessed 2026-09-10

    Renovation permit triggers (additions, suites, structural repairs, decks); roofing not mentioned.

  11. Building and Renovating — District of Sooke · accessed 2026-09-11

    States that construction, renovation and demolition projects need permits and that the property owner is responsible for obtaining one before work begins; does not name re-roofing specifically. Building department 250-642-1634. (Previous URL retired; updated 2026-09-11.)

  12. Apply for a Building Permit (Juan de Fuca, Salt Spring, Southern Gulf Islands) — Capital Regional District · accessed 2026-09-10

    CRD electoral areas only (not core municipalities); exemption list includes minor non-structural repairs.

  13. Building & Renovating — District of Central Saanich · accessed 2026-09-10

    Permit information; roofing not addressed.

  14. Applying for a Building Permit — District of North Saanich · accessed 2026-09-10

    Permit information; roofing not addressed.

  15. District of Oak Bay — District of Oak Bay · accessed 2026-09-10

    Municipal contact for permit and heritage questions; no roofing-specific page found.

  16. Town of Sidney — Town of Sidney · accessed 2026-09-10

    Municipal contact for permit questions; no roofing-specific page found.

  17. Township of Esquimalt — Township of Esquimalt · accessed 2026-09-10

    Municipal contact for permit questions.

  18. Town of View Royal — Town of View Royal · accessed 2026-09-10

    Municipal contact for permit questions.

  19. District of Metchosin — District of Metchosin · accessed 2026-09-10

    Municipal contact for permit questions.

  20. District of Highlands — District of Highlands · accessed 2026-09-10

    Municipal contact for permit questions.

  21. Material Latent Defects (selling a home) — BC Financial Services Authority · accessed 2026-09-11

    Sellers must disclose known material latent defects (defects that cannot be discovered by reasonable inspection, or that make the property dangerous or unfit) in writing, in a separate document. Patent (visible) defects are not covered by this duty.

  22. Consumer Guide to Disclosures — BC Financial Services Authority · accessed 2026-09-11

    The Property Disclosure Statement is a voluntary form and a starting point for the buyer's own inquiries; a 'Property No Disclosure Statement' signals the need for further due diligence.

  23. Self-employed proprietors or partners — who needs coverage — WorkSafeBC · accessed 2026-09-11

    Self-employed proprietors with no employees (and no unregistered subcontractors) are not required to register; employers with workers must. A homeowner hiring an unregistered sole proprietor can take on employer-like responsibilities.

  24. Personal coverage (Personal Optional Protection) — WorkSafeBC · accessed 2026-09-11

    Sole proprietors and partners can buy optional personal coverage for their own wage loss and medical costs; without it an injured owner-operator is not covered.

  25. Census Profile, 2021 Census — period of construction — Statistics Canada · accessed 2026-09-10

    Relative housing age across Greater Victoria municipalities (older core, newer West Shore).

  26. Homeowner maintenance resources — Canada Mortgage and Housing Corporation · accessed 2026-09-10

    General attic condensation, ventilation and roof maintenance guidance.

  27. Maintenance Matters bulletins — BC Housing Research Centre · accessed 2026-09-10

    Coastal BC building-envelope moisture guidance.

  28. Insurance Act, Statutory Conditions 6 and 9 (notice of loss; salvage) — Province of British Columbia · accessed 2026-09-28

    After a loss the insured must take all reasonable steps to prevent further damage and must give the insurer notice; the insurer contributes to reasonable expenses of doing so.

  29. Sanitary Sewer and Stormwater Utilities Bylaw No. 14-071 — City of Victoria · accessed 2026-09-28

    Stormwater from roofs and other impervious surfaces must drain to the municipal storm system unless an approved on-site system is used; no draining onto another parcel.

  30. Rainwater Rewards program — City of Victoria · accessed 2026-09-28

    Rebates between $35 and $1,500 for rainwater management on a residential lot.

  31. Sanitary sewer dos and don'ts — District of Saanich · accessed 2026-09-28

    Roof downspouts must connect to the stormwater system, not the sewer.

  32. Holiday ladder safety tips from WorkSafeBC and Preventable — WorkSafeBC · accessed 2026-09-28

    About 485 British Columbians hospitalized a year after falls from ladders and scaffolding; three points of contact; not the top two rungs.

  33. Maintenance Matters 02: Maintaining Your Roof — BC Housing · accessed 2026-09-28

    Inspect roofs twice a year and after storms with high winds; inspection by a professional; moss holds moisture and can cause premature failure; keep a maintenance record.

  34. Home Maintenance Schedule (About Your House; 2010 revision, copy hosted by the Fraser Basin Council) — Canada Mortgage and Housing Corporation · accessed 2026-09-28

    Seasonal checks: clear eavestroughs and test downspouts in fall; check roof condition from the ground in summer.

Climate

  1. Canadian Climate Normals 1991–2020 — Victoria stations — Environment and Climate Change Canada · accessed 2026-09-10

    Official precipitation normals. Gonzales (city) 608 mm/yr, wettest December 109 mm, driest July 14 mm; UVic 661 mm; airport roughly 45% more than the city (figures as summarised by Wikipedia from ECCC).

  2. Victoria, British Columbia — Climate (citing ECCC 1991–2020) — Wikipedia · accessed 2026-09-10

    Rain shadow of the Olympic Mountains; driest location on the BC coast; monthly distribution.

Industry and academic

  1. RoofStar Guarantee — Guarantees — Roofing Contractors Association of BC · accessed 2026-09-10

    5/10/15-year third-party guarantees available only through RCABC member contractors with independent observations; contractor handles claims in the first two years.

  2. Consumer Guide to Roofing (PDF) — Roofing Contractors Association of BC · accessed 2026-09-10

    Neutral guidance on choosing a contractor and questions to ask.

  3. How to control roof moss and prevent long-term damage — Oregon State University Extension · accessed 2026-09-10

    Moss control practice for the Pacific Northwest: remove first, zinc/copper strips, never pressure-wash asphalt shingles.

  4. Zinc strips for roof moss — Miller Library Q&A — University of Washington Botanic Gardens · accessed 2026-09-10

    Zinc strips protect roughly 15 ft (4.5 m) of roof below the strip; zinc sulfate can corrode copper gutters/flashing.

  5. Asphalt Roofing Manufacturers Association — residential resources — ARMA · accessed 2026-09-10

    Asphalt shingle types, service-life factors, granule loss and algae explanations.

  6. Cedar Shake & Shingle Bureau — CSSB · accessed 2026-09-10

    Cedar grades, installation and care in wet climates.

  7. Metal Roofing Alliance — homeowner resources — MRA · accessed 2026-09-10

    Metal profiles, service-life and coastal specification guidance.

  8. Severe weather insurance FAQs — Insurance Bureau of Canada · accessed 2026-09-28

    Policyholders are expected to protect property from further damage if it is safe, for example with a tarp, and to hire a professional if it is not.

  9. Wind and tornado: protect your property — Insurance Bureau of Canada · accessed 2026-09-28

    Most home policies cover water that enters through openings caused by wind or hail.

  10. Roofing guidelines for homeowners — National Roofing Contractors Association (US) · accessed 2026-09-28

    Homeowners should stay on the ladder and off the roof; a leak does not necessarily mean the roof needs replacing.

  11. Application of coatings or rejuvenators on asphalt shingles after installation — Asphalt Roofing Manufacturers Association · accessed 2026-09-28

    ARMA strongly advises against field application of coatings or rejuvenators over installed asphalt shingles; limited documentation of benefits. Its members sell new shingles.

  12. Technical report on a soy-based shingle treatment, with laboratory results (2017) — The Ohio State University, Dept. of Food, Agricultural and Biological Engineering; PRI laboratory report appended (copy hosted by a dealer) · accessed 2026-09-28

    Prepared at the request of the product's maker and the Ohio Soybean Council; one 17-year-old roof; tested three days after treatment; treated samples exceeded the granule-loss limit and failed hail impact at all six locations.

  13. Roof Maintenance Guide (2012) — RCABC Guarantee Corp. · accessed 2026-09-28

    A RoofStar guarantee requires the owner to maintain the roof; repairs under guarantee by an RCABC member; power washing may erode granules.

Published estimates (contractor and commercial guides)

Used only to calibrate ranges. These publishers sell roofing or leads; we never quote a single price from them.

  1. Roof replacement cost in Victoria — CostCanada · accessed 2026-09-10

    Asphalt $4 (budget) / $8 (average) / $13 (premium) per sq ft; Victoria about 10% above the national average (2026).

  2. Roof replacement cost Victoria BC — Forge Metal Roofing (Victoria contractor) · accessed 2026-09-10

    Victoria full replacement $12,000–$40,000+; asphalt $5–$9, corrugated metal $8–$14, standing seam $12–$20+ per sq ft installed (2026).

  3. New roof cost Victoria BC 2026 — Shoreline Roofing (Victoria contractor) · accessed 2026-09-10

    Typical single-family $9,000–$30,000; $450–$1,200 per roofing square installed (2026-06-05).

  4. Metal roofing Victoria BC: cost, lifespan, is it worth it — Shoreline Roofing (Victoria contractor) · accessed 2026-09-10

    Metal $18,000–$35,000 typical, roughly double an asphalt re-roof; local lifespans metal 40–50 yr, asphalt 15–22 yr, cedar 20–30 yr (2026-07-29).

  5. Preventing roof moss in Victoria BC — Shoreline Roofing (Victoria contractor) · accessed 2026-09-10

    Professional treatment $500–$1,200; zinc/copper strips $300–$600; annual contract $300–$600; treat every 12–18 months; north-facing and under Douglas fir/cedar most at risk (2026-04-30).

  6. Why August is the best month to replace a roof in Victoria — Shoreline Roofing (Victoria contractor) · accessed 2026-09-10

    Contractor view that late summer is the best replacement window locally.

  7. Do I need a permit to repair or replace my roof in BC? — Shoreline Roofing (Victoria contractor) · accessed 2026-09-10

    Industry claim: like-for-like re-roof typically no permit; material change (e.g., to metal) may need one; always check locally (2023-06-25). Treated as a claim, not a rule.

  8. How much does a new roof cost in Victoria BC? — Vintage Roofing (Victoria contractor) · accessed 2026-09-10

    Asphalt $10k–$20k; cedar/higher grade $18k–$25k; slate/metal $25k–$35k+ (2023-10-08).

  9. Why summer is the best time for a roof replacement in Greater Victoria — Vintage Roofing (Victoria contractor) · accessed 2026-09-10

    Summer is the busiest season; book early (2026-06-28).

  10. Average roof replacement cost in BC — Green Building Canada · accessed 2026-09-10

    BC asphalt $4–$9 (avg $6.50), metal $8–$30, cedar $14–$30, flat $4–$12 per sq ft; Victoria/Vancouver 15–20% higher than the rest of BC (2024-09-25).

  11. Roof replacement costs in Canada — province by province — Homeowner.ca · accessed 2026-09-10

    BC asphalt $4–$9 per sq ft installed; 2,000 sq ft ≈ $13,000 before tax at the midpoint; Victoria/Vancouver labour 15–20% above the rest of the province (2026-03).

  12. Roof replacement cost in Canada 2026 — RenoQuotes · accessed 2026-09-10

    Canada asphalt $6–$13, metal $15–$30, membranes $11–$22 per sq ft (2026-04-13).

  13. Cedar shake roofing guide (Surrey BC) — Paragon Roofing BC · accessed 2026-09-10

    Grade 1 cedar $14–$26 per sq ft; cedar material up 40–60% since 2019; 18–25 yr maintained vs 12–15 yr unmaintained.

  14. Cost of torch-on roofing in BC — Taves Roofing · accessed 2026-09-10

    Torch-on $8–$12 per sq ft in BC.

  15. Torch-on roofing guide: costs, lifespan and maintenance in BC — Citadel Roofing · accessed 2026-09-10

    Torch-on $10–$13+ per sq ft; 25–30 year lifespan.

  16. Roof repair costs (Canada) — HomeStars · accessed 2026-09-10

    Canada roof repair $500–$1,800, average about $1,000; labour 50–70% of repair quotes (2026).

  17. Chimney flashing cost calculator (Canada) — RoofingCalculatorHQ · accessed 2026-09-10

    Chimney flashing replacement $310–$1,250, typical $390–$540 (2026).

  18. Home inspection Victoria BC — Roots in Victoria (realtors) · accessed 2026-09-10

    Inspectors check moss extent; roof cleaning $300–$600 annually or biannually; cedar 15–20 yr, asphalt 20–25 yr locally (2026-08-14).

  19. How much does a home inspection cost in Victoria BC? — Watchtower Inspections · accessed 2026-09-10

    Victoria home inspection $500–$800 (2026).

  20. New roof before selling: is it worth it? — Moody Properties (BC realtor) · accessed 2026-09-10

    Realtor estimate that a new roof recoups roughly 60–70% of its cost at sale in BC. Used for the recoup estimate only; disclosure duties are cited to BCFSA.

  21. Roof insurance claim BC — step by step — IM Roofs · accessed 2026-09-10

    Storm-damage claim process in BC; older roofs may be settled at depreciated value.

  22. Water damage: what am I covered for? — RBC Insurance · accessed 2026-09-28

    Sudden storm openings are usually covered; slow leaks and repeated seepage typically are not.

  23. Home insurance for homeowners — BCAA · accessed 2026-09-28

    Cover for water entering through an opening in the roof is sold as an optional extended water coverage.

  24. Gutter installation Victoria BC — Greater Victoria Roof Cleaning · accessed 2026-09-28

    Continuous aluminum gutters about $9 to $22 per linear foot installed; $1,500 to $3,500 for a complete installation.

  25. Gutter repair Victoria BC — Greater Victoria Roof Cleaning · accessed 2026-09-28

    Gutter repair bands: $150 to $350 to re-slope a sagging run; $350 to $800 to replace damaged sections.

  26. Gutter replacement cost in Victoria — Gutter Done Victoria · accessed 2026-09-28

    Gutter replacement $5.25 to $20.50 per linear foot; average total just under $2,020.

  27. Wholesale gutter pricing — Roof Cleaning Victoria · accessed 2026-09-28

    Trade rate $5.00 per foot for 5 inch continuous aluminum gutter and for downpipe, $1.00 per foot tear-off; states retail as $8 to $9 per foot.

  28. Gutter installation cost in British Columbia (2026) — Gutters Canada · accessed 2026-09-28

    About $8 per foot single storey; $12 to $17 per foot for second and third storeys (Metro Vancouver).

  29. Gutter installation cost guide — RenoQuotes · accessed 2026-09-28

    National per-foot ranges by material, gutter guard prices, typical house length 150 to 200 feet, lifespans by material.

  30. Gutter cleaning cost — MC Gutters & Exteriors · accessed 2026-09-28

    Gutter cleaning $150 to $500 for an average-sized home.

  31. Gutter cleaning — Victoria Moss Removal · accessed 2026-09-28

    Gutter cleaning $200 to $450 for an average Victoria home; two to three cleanings a year under trees.

  32. Gutter cleaning cost in Victoria BC — Shine Pros · accessed 2026-09-28

    $235 for a 1,500 sq ft single-storey home and $448 for a 3,500 sq ft two-storey; storey surcharges.

  33. Gutter cleaning pricing — Roof Cleaning Victoria · accessed 2026-09-28

    $225 for an 1,801 to 2,500 sq ft house and $255 for 2,500 to 3,500 sq ft.

  34. Estimator — Friendly Giant · accessed 2026-09-28

    $150 minimum charge for on-site services.

  35. What is roof rejuvenation? — Roof Maxx Technologies · accessed 2026-09-28

    Seller claim: up to 5 years per treatment and up to 15 with repeat applications.

  36. Warranty — Roof Maxx Technologies · accessed 2026-09-28

    Warranty covers flexibility for five years and states it is not a warranty against granule loss or leaks.

  37. Asphalt roof rejuvenation — Shiny Power Wash (Surrey, BC) · accessed 2026-09-28

    Published price about $1 per square foot.

  38. Roof rejuvenation, North Vancouver — NanoShieldBC (North Vancouver) · accessed 2026-09-28

    Published prices $1.24 to $2.50 per square foot by product tier.

Our own model

  1. Great Victoria Roofing pricing model (our estimate) — Great Victoria Roofing · accessed 2026-09-10

    All cost ranges on the site are outputs of the deterministic model in data/pricingFactors.ts, calibrated to the published ranges above and reviewed quarterly. Estimates, not quotations.