The building
In Le Sud-Ouest, provide street, postal code, access and storey count. Add occupancy hours and an on-site contact.
A leak, a planned replacement or a roof assessment in Le Sud-Ouest? Prepare your project with Alliance Roofing: services, materials and useful information in one place.
Plan the project for your borough. For an attached building, identify rear access, shared walls and delivery constraints. Check the requirements for your address before selecting a covering.
Confirm address coverage and availability at 514 556-2864. This page does not represent a local branch.

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A white roof, welded seams and an assembly suited to your property.
Explore in Le Sud-Ouest02Plan covering replacement and corrections to the roof assembly.
Explore in Le Sud-Ouest03Identify the cause before choosing a targeted repair.
Explore in Le Sud-Ouest04Describe an active leak and check available response options.
Explore in Le Sud-Ouest05Understand water accumulation and plan suitable drainage.
Explore in Le Sud-Ouest06Assess roof condition and organize useful maintenance.
Explore in Le Sud-Ouest07Plan roof work around operations and occupants.
Explore in Le Sud-Ouest08Assess a modified-bitumen roof and replacement options.
Explore in Le Sud-Ouest09Assess a built-up roof and compare repair with replacement.
Explore in Le Sud-Ouest10Review insulation alongside the substrate and vapour control.
Explore in Le Sud-Ouest11Address connections between the membrane, walls, chimneys and metalwork.
Explore in Le Sud-Ouest12Check drainage points and membrane details around roof drains.
Explore in Le Sud-OuestIn Le Sud-Ouest, provide street, postal code, access and storey count. Add occupancy hours and an on-site contact.
Specify TPO, modified bitumen, tar and gravel or unknown covering. Include approximate age, repair history and safely taken photographs.
Check permits, permitted materials and site access for your address. Montreal’s official procedure
Materials & systemsThe best choice starts with your building. Here is how to compare three roof-covering families without reducing the decision to a brand or square-foot price.
Read the guide · 2 min
Planning & budgetA square-foot price is not enough to compare two estimates. Here are the items behind price differences and the questions to ask before signing.
Read the guide · 2 min
Leaks & inspectionA leak calls for an organized response. Protecting occupants, documenting symptoms and explaining the situation helps prepare the response.
Read the guide · 2 minLet’s talk about your project, priorities and next steps.