Roofing decisions start with the building, slope, drainage, existing materials and condition. Get clear information for repairs, replacement, flat roofs, shingles, metal roofing and commercial systems across Vancouver and the Lower Mainland.
A leak does not automatically mean a full replacement, and a new roof should not be selected by material name alone. The roof assembly, age, drainage, ventilation, penetrations and surrounding conditions all affect the scope.
Start with condition, not a roofing product. A roof replacement estimate is more useful when the existing assembly has been understood first. The visible roof covering may be only one part of the project. Deck condition, underlayment or membrane, flashing, ventilation, roof-to-wall transitions, drains and penetrations can all affect the final scope. This is why a homeowner comparing asphalt shingles with metal roofing, or a property manager comparing flat-roof membranes, should first understand what the current roof requires rather than choosing a product from a sample board.
Leak investigation and repair planning for damaged shingles, flashing, penetrations and low-slope roofing.
Roof repair guide →Re-roofing and replacement planning when age, repeated leaks or widespread deterioration make isolated repairs less practical.
Replacement planning →Low-slope roof systems for homes, strata and commercial properties, including membrane and modified-bitumen applications.
Flat roofing →Common sloped-roof systems with choices in profile, colour, ventilation details and replacement approach.
Shingle roofing →Long-life metal roof options for selected residential and commercial applications.
Metal roofing →Roofing for commercial, multi-unit and property-managed buildings where access, drainage and maintenance planning matter.
Commercial roofing →Residential roofing can include asphalt shingles, metal, low-slope membrane sections, flashing, skylight transitions and drainage details. Vancouver's wet coastal conditions make water management particularly important. A useful inspection looks beyond the visible surface and considers where water enters, how it drains and whether the existing assembly is suitable for repair or replacement.
Vancouver weather makes drainage details important. Metro Vancouver receives long periods of rain, and roofing systems need to move water away from vulnerable details consistently. On sloped roofs, valleys, eaves, wall intersections and penetrations deserve attention. On flat and low-slope roofs, drains, scuppers, membrane seams and rooftop curbs become central. A leak can appear during only certain wind or rainfall conditions, so describing when the problem occurs can help focus the inspection on the areas most likely to be involved.


Commercial and multi-unit roofs commonly include drains, curbs, HVAC penetrations and large membrane areas. Repair decisions should account for the condition around those details, not only the spot where water appears inside. For larger projects, access, tenant disruption, staging and ongoing maintenance also become part of the roofing plan.
Roofing quotes should describe the same job. When comparing Vancouver roofing contractors, send each company the same basic project information and then compare the written scopes. One proposal may include full flashing replacement, disposal and deck repairs while another assumes those items are extra. A lower total does not necessarily represent the same roof system or level of work. Ask what is included, what is excluded, which materials are specified and how changes will be approved if hidden damage is discovered after removal begins.
Describe the property, roof type, approximate age and what you are seeing. Photos of interior staining or visible exterior damage can help explain the issue, but they do not replace an on-site assessment when the cause is uncertain.
Tell us what you are seeing, where the property is located and the type of building.