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Roof Systems

Commercial Roofing

A roof leak in a business costs more than the repair. We plan commercial roofing around your tenants, customers and hours.

Small commercial buildings, retail plazas, offices, churches and multi-unit residential properties need roofers who understand both low-slope membranes and the reality of working on an occupied building. Hammerline Roofing handles roofing for property owners and managers and keeps you informed at each stage.

Commercial roofing services

  • Membrane roof replacement — EPDM, TPO and modified bitumen systems with tapered insulation where drainage needs improving.
  • Leak investigation and repair — tracing leaks back to failed seams, flashings, drains or rooftop equipment curbs.
  • Sloped commercial roofs — shingle and metal roofing on mansards, storefront canopies and smaller pitched buildings.
  • Roof maintenance — scheduled inspections, drain cleaning and minor repairs to extend the life of an existing roof.
  • Condition reports — written reports with photos to help owners plan capital budgets, reserve funds or a sale.

How we run commercial projects

  1. Site review. We check the roof, access, rooftop equipment and any tenant or safety restrictions.
  2. Scope and schedule. You get a written scope, a schedule that works around your business and a plan for keeping the building watertight.
  3. Safety and protection. We set up fall protection, protect entrances and keep materials and debris contained.
  4. Closeout. Final photos, material details and any warranty information for your files.

For low-slope systems on homes and garages, see flat roofing. For storm-related leaks on a commercial property, see storm damage repair.

Good to know

For many commercial owners, the most cost-effective approach is a maintenance plan rather than waiting for a leak. Twice-yearly inspections, cleared drains and small seam repairs can extend a roof's life and help you plan a replacement years ahead instead of reacting to an emergency. When replacement is due, timing matters: planning around tenants' busy seasons, lease renewals and budgets keeps disruption low. We document each visit with photos, so you have a clear record for insurers, lenders, buyers or a condominium board, and a history of the roof that makes future decisions easier.

What affects the cost of commercial roofing

Commercial roofing costs depend on the roof area, the membrane system, insulation requirements and the condition of the existing roof. Removing multiple old layers or wet insulation adds significant work. Rooftop equipment, curbs, drains and parapet walls each need detailed flashing. Access, safety requirements and working around tenants or business hours also affect labour. For repairs and maintenance, the extent of the problem and how easy it is to reach drive the cost. We provide a written scope so owners can compare options and plan budgets.

Commercial Roofing questions

Can you work while my business stays open?

Usually, yes. We plan noisy work and material lifts around your hours and keep entrances and walkways safe and clear.

Do you provide reports for property managers or insurers?

Yes. We can provide a written condition report with photos describing what we found and what we recommend.

Do you install roofs on large industrial buildings?

We focus on small and mid-sized commercial buildings. For very large industrial roofs, we'll tell you honestly if the project is outside what we take on.

Where we offer commercial roofing

We provide commercial roofing for property owners and businesses in Windsor, LaSalle and Tecumseh. See what to expect in your area:

Let's put a real roof over your head.

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