Hiring a commercial roofing contractor in Burnaby isn't the same as hiring one for a house. The roofs are bigger, the assemblies are more complex, and the consequences of a bad install — leaks over tenant space, insurance disputes, an exposed deck sitting under a Pineapple Express — get expensive fast. If you manage a strata, a light-industrial building near Still Creek, or a retail block along Hastings, the vetting process matters more than the sales pitch. Here's what to actually check before signing.
Verify WorkSafeBC Coverage and Liability Insurance First
Before you talk product or price, ask for two documents: a current WorkSafeBC clearance letter and a certificate of liability insurance. Every legitimate roofing contractor in BC carries both, and they should send them the same day you ask. Vague answers about 'our guys are covered under another company' are a reason to walk.
The clearance letter protects you. If a roofer falls on your building and their WorkSafeBC account isn't in good standing, you can end up on the hook for their claim. Liability works the same way — you want confirmation coverage is active, and for larger buildings it's reasonable to ask to be named as an additional insured for the project's duration. A serious commercial contractor won't blink at that request.
Ask who is actually on the crew, too. Subcontracted labour is common in this trade, but the contractor should be able to tell you which parts are their own employees versus subs, and confirm the subs carry their own coverage.
Read the Warranty, Both of Them
Commercial roofs carry two warranties, and they cover different things. The manufacturer warranty covers the membrane or metal itself against defects. The workmanship warranty covers how the contractor installed it. A great product installed badly still leaks, so both matter.
Ask for the specifics in writing:
- Length of the workmanship warranty in years
- What it covers: leaks only, or flashings, drains, and penetrations too
- Whether the warranty transfers if the building sells
- What voids it (rooftop equipment installs by other trades often do)
- How service calls are handled once the warranty ends
Be skeptical of very long workmanship promises from small operators. A long workmanship warranty is only as good as the company still standing behind it a decade from now.
Choose a Commercial Roofing Contractor in Burnaby Who Knows the Climate
Roofs in the Lower Mainland take punishment roofs in drier parts of Canada never see. We get sustained wet seasons where a flat roof can stay saturated for weeks, freeze-thaw cycles that pry open failed seams every January, moss loading on north-facing low-slope assemblies, and windstorms that peel back anything not properly fastened. A contractor who came up doing residential shingles won't have the same instincts as one who has spent years on flat roofing and torch-on assemblies from Vancouver out to Port Moody.
Ask specifically about their experience with the system you have or want. SBS, single-ply TPO or PVC, inverted roofs, and standing-seam metal all have different failure modes and different install standards. A contractor should be able to explain, in plain language, why they'd recommend one over another for your building. Slope, drainage, foot traffic, insulation strategy, and rooftop equipment all factor in. If they can't articulate that trade-off without pulling up a brochure, they're guessing.
Ask for References and See Recent Local Projects
Request three to five recent commercial jobs, ideally in Burnaby, Coquitlam, New Westminster, or elsewhere in the Tri-Cities. Fresh references are more useful than a plaque from a decade ago. Talk to the property manager who dealt with the crew day to day, not just the owner who signed the cheque. Ask how the contractor handled surprises, because on any older commercial roof there are always surprises, and how quickly they came back for warranty callbacks.
If you can, drive by. A tidy, well-flagged job site on install day usually means the finished assembly is tidy too. Sloppy site conditions correlate with sloppy details around drains, curbs, and parapets. For strata and multi-family buildings, ask specifically how the contractor communicates with residents during a re-roof — noise, access, and parking are always the friction points.
Insist on Documentation and a Real Inspection Before Quoting
A quote written after a five-minute walk-around isn't a real quote. On low-slope commercial roofs, the assembly under the membrane matters as much as the membrane itself. A proper pre-bid inspection includes core samples where needed, moisture scans on suspect areas, drain assessments, and photos of every penetration and transition. Contractors who produce commercial roof inspection reports before quoting are the ones who won't hit you with change orders halfway through the tear-off.
During the job, ask for progress photos and daily notes, especially of anything that gets covered up: vapour barrier laps, insulation fastening patterns, membrane welds. If a warranty claim comes up in year seven, that documentation is what you'll need. For multi-tenant properties, this paper trail keeps the depreciation report and the reserve fund honest.
Ongoing roof maintenance should be part of the conversation too. Even a perfectly installed roof needs drains cleared, seams inspected, and moss addressed. A contractor who wants the install and then disappears isn't a long-term partner.
The Short Version
Verify coverage, read both warranties, choose someone who has actually roofed in our climate, check recent local references, and demand documentation. Price matters, but on a commercial roof it's rarely the number that decides whether you're happy in ten years.
If you'd like a straightforward second opinion on your building — whether it's a strata in Burnaby Heights, a warehouse near Boundary Road, or a mixed-use property in the Tri-Cities — we're happy to walk the roof and give you an honest read. Learn more about our commercial roofing work in Burnaby or get in touch to book a free inspection.
Get a free roofing estimate
Commercial, strata & low-slope roofing across Greater Vancouver.
