How to Choose a Roofing Contractor

Compare written scopes, not only totals

Two roofing quotes can differ because they include different removal work, underlayment, flashing, ventilation, disposal, access or warranty terms. Ask each contractor to explain what is included and excluded so the totals can be compared on the same basis.

Ask who is actually performing the work. The company providing the estimate may use employees, subcontractors or a combination. That arrangement is not automatically good or bad, but the property owner should know who is responsible for supervision, site safety, cleanup and warranty service. The contract should identify the business accountable for the completed roofing scope.

Look for specificity instead of pressure. A professional proposal should give the owner enough detail to understand the recommended work and time to ask reasonable questions. Be cautious when an estimate relies heavily on urgency without connecting that urgency to observable roof conditions. Genuine emergency protection can be necessary during an active leak, but a major replacement decision should still be explained clearly.

Verify time-sensitive credentials close to the project date. Insurance policies, WorkSafeBC status and manufacturer certifications can change. Do not rely on an old logo or certificate copied from a website. Ask for the current business information and verify the items that matter to the project. Keep copies with the contract so the project record reflects what was current when the work was approved.

Check WorkSafeBC status. WorkSafeBC recommends that homeowners hiring an independent business confirm that the business is registered and making required payments, which can be checked through a clearance letter. Ask the contractor for its precise legal or trade name so you can verify the current status directly with WorkSafeBC.

Ask about insurance and project responsibility. Confirm the contractor's current insurance information and who is responsible for supervision, site protection, cleanup and communication. For larger projects, understand whether subcontractors will be involved and who remains accountable for the completed roofing scope.

Understand the warranty

Material warranties and workmanship warranties are not necessarily the same. Ask what each warranty covers, who provides it, how long it lasts and what maintenance or registration requirements apply.

What a useful roofing assessment should clarify

A useful assessment should identify the roof type, visible condition, likely failure points and whether the problem appears isolated or part of broader deterioration. For leaks, the interior stain may not sit directly below the entry point because water can travel along decking, framing or membrane layers. The scope should therefore address the cause, not simply cover the place where water became visible.

Before approving work, ask what materials are being used, which areas are included, what is excluded, how debris and site protection are handled, and what warranty applies to the completed scope. Larger replacement projects should also explain ventilation, flashing and drainage details where they are relevant to the roof assembly.

Get the project details in writing

Whether the job is a small repair or full replacement, keep the final scope, product information, payment schedule and warranty terms together. If the scope changes after work begins, document the change and its effect on price or timing before proceeding.

References and reviews can provide context, but they should not replace current project verification. A contractor may have completed good work in the past while its insurance, staffing or business status has since changed. Use reviews to understand communication and project experience, then verify the present-day items that matter to your own roof. For large commercial or strata work, ask whether the contractor has handled comparable roof types and access conditions.

Before signing, compare the contractor's proposal with the roof replacement scope guide and roofing materials guide. If the project began with a leak, the repair versus replacement page can help test whether the proposed scope matches the condition described.