The right GTA roofing contractor has eight specific traits: $2M+ liability insurance with active certificate, full WSIB coverage on every crew member, a written line-item fixed-price quote (not a lump-sum estimate), a 25-year written workmanship guarantee, drone inspection capability, manufacturer-certified installer status, real local reviews (verified, not just star count), and zero high-pressure sales tactics. AUK Roofers passes all eight. Most contractors quoting on your roof right now fail at least three of them. This guide shows you exactly what to ask and what to verify before signing.
1 — Liability insurance ($2M minimum)
If a worker falls off your roof and the contractor isn't insured, you can be liable. Period. Ontario homeowners have been sued successfully for million-dollar settlements after contractor injuries on their property. Your homeowner policy will not cover this — it specifically excludes uninsured contractor work. Ask for the certificate and verify the policy is active. Don't accept 'we have insurance' verbally.
Minimum acceptable: $2,000,000 commercial general liability
Ask for the certificate of insurance (COI) — every legitimate contractor has one ready
Verify the policy is active and covers roofing operations specifically
Confirm the certificate names YOU as the property owner during the work period
2 — WSIB coverage (on every crew member)
WSIB is Ontario's workers' compensation system. If a worker is injured on your roof and isn't covered, you're potentially on the hook for medical bills and lost wages. Many contractors carry WSIB only for the owner — not for sub-contracted day labour. That's a problem.
Ask for the WSIB clearance certificate showing all employees covered
Verify the certificate covers the date your job will be performed
If contractor uses subcontractors, each sub needs their own WSIB or coverage
Walk away from any contractor who can't or won't provide this
3 — Written line-item quote (not a lump-sum estimate)
A lump-sum estimate ('$12,500 for your roof') hides what you're actually getting. A line-item quote shows each component priced separately so you can compare apples to apples between contractors and verify nothing important is missing. Always demand the line-item version.
Tear-off and disposal — specified by number of layers
Decking allowance — priced per sheet replaced
Underlayment — brand, weight, coverage area
Ice-and-water shield — coverage area in sq ft
Shingle/panel material — brand, model, colour, warranty
Flashings — drip edge, valley, step, chimney, vent
Ventilation — ridge vent, soffit, attic fan
Cleanup, magnet sweep, disposal removal
Workmanship warranty terms in writing
Permit costs (if applicable)
4 — Written workmanship warranty (25 years preferred)
Manufacturer warranty covers the materials. Workmanship warranty covers the install. Most leak issues come from install mistakes (flashing, valleys, ventilation), not material defects — which means the workmanship warranty is what protects you. Verbal '5 years guaranteed' is not enforceable. Insist on it in writing on the quote.
AUK Roofers: 25-year written workmanship guarantee, transferable to next owner
Industry minimum acceptable: 10 years
Anything less than 5 years is a red flag
Verbal promises are not enforceable — only what's on the signed contract
5 — Drone inspection capability
Drone inspection isn't just a marketing trick — it materially changes the quality of your assessment. Drone captures every plane, every valley, every ridge cap from above. Ladder inspections only see the perimeter and the slopes the inspector chooses to walk. Climbing on aging shingles also damages them. Contractors without drone capability are working with less information.
6 — Manufacturer certification
GAF (Master Elite), IKO (Shieldpro Plus), CertainTeed (Master Shingle Applicator), Owens Corning (Platinum Preferred), and Malarkey (Emerald Preferred) all certify a small percentage of contractors who pass training, install volume, and workmanship audits. Certified status unlocks longer manufacturer warranties on the materials and signals install quality. Always ask which certifications the contractor holds.
7 — Real local reviews (Google, not curated testimonials)
Anyone can paste five glowing testimonials on their website. Google Reviews are harder to fake at scale, especially when you check for: review count (>50 is solid, >200 is excellent), recent reviews (within last 6 months), variety of named projects, and contractor responses to negative reviews (handled professionally vs defensively).
AUK Roofers: 4.9★ across 200+ Google reviews
Look for reviews from your specific neighbourhood — local familiarity matters
Check the contractor's response style on any 1-3 star reviews — defensive responses are a red flag
Verified Google profile beats any 'as seen on' testimonials page
8 — Zero high-pressure sales tactics
Roofing is one of the few industries where 'sign today or the price changes' is still common. It's a tactic, not a pricing reality. Materials don't get cheaper because you sign on the kitchen table that night. Walk away from anyone who:
Insists on signing during the inspection visit
Offers a 'today only' discount that disappears tomorrow
Won't leave the written quote with you to think about
Pushes you toward replacement when a repair would do
Calls or texts repeatedly after you've said you're considering options
Refuses to provide the COI or WSIB certificate before signing
Common questions.
Direct answers, no filler.
How many quotes should I get?
Three is standard. Two is acceptable if both meet the eight criteria above. One is too few — you have no comparison. Five+ is a sign you're shopping price instead of evaluating contractors.
What's the cheapest legitimate quote I should expect?
For a 2,000 sq ft architectural-shingle replacement in 2026 GTA: $9,000–$10,000 is the legitimate floor. Anything under $8,500 is almost certainly missing scope (skipping ice-and-water shield, using cheap underlayment, cutting workmanship warranty, or using uncertified labour).
Is the most expensive quote always the best?
No. Premium pricing without premium scope is just markup. Compare line-item: same materials, same scope, same warranty — then choose on reputation and service quality.
What if a contractor refuses to give me a written quote?
Walk away. Every legitimate contractor produces a written quote. Verbal estimates are not enforceable and protect nothing. The act of refusing tells you they're either disorganized or trying to keep wiggle room — neither is a partner you want.
Should I always pick the contractor my insurance recommends?
No. You have full right to choose any qualified, licensed, insured contractor. Insurance recommendations are convenient but sometimes selected on volume pricing rather than quality. Apply the eight criteria.
How important is local reputation specifically?
Very. A contractor who has done 50 roofs in your specific GTA city knows the housing stock, the local building department, and the typical failure patterns. That's worth more than a national chain with a slick brochure.
What about online reviews on Yelp, Reddit, etc.?
Useful but secondary. Google Reviews has the highest volume and the strongest verification. Treat Reddit local-subreddit threads as good sanity checks but not primary sources.
Should I check Better Business Bureau?
BBB is less useful in 2026 than it once was — the rating system is gameable and BBB membership is paid. Check it as one data point but weigh Google Reviews and licensing/insurance verification more heavily.
Compare quotes the right way
Across all 14 GTA service areas. $2M insured. WSIB. 25-year workmanship guarantee.
