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Commercial Roofing in Toronto & the GTA

Retail, industrial, warehouse, and multi-unit residential.

L&B Roofers services commercial and industrial buildings across the GTA — retail plazas, warehouses, condominium and multi-unit residential, and light industrial. We coordinate around your operating hours and keep the site safe for tenants and staff.

What's Included

Scope & Process
01

New installation & re-roofing

Full commercial roof replacement with TPO, modified bitumen, or built-up systems, sized and specified to the building.

02

Flat roof repair

Leak tracing, membrane patching, seam re-welding, and flashing repair on commercial flat roofs. We document what we find and what we did.

03

Preventive maintenance programs

Scheduled inspections and maintenance visits (typically spring and fall) that catch small issues before they turn into interior damage or emergency call-outs.

04

Drainage & ponding correction

Tapered insulation, drain resetting, and slope correction so water actually reaches the drains.

05

Roof condition reports

Written assessments for property managers, real estate transactions, insurance renewals, and capital planning.

Typical Timeline

Scope varies with square footage and access — we'll give you a firm schedule with your written estimate. Repairs and maintenance visits are usually same-day.

CoverageGTA
InsuredFully
WarrantyWorkmanship
EstimatesFree
— FAQ

Commercial Roofing — Common Questions

Can you work around our business hours?

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Yes. We schedule around retail hours, warehouse shifts, and tenant occupancy — including early-morning starts, staged sections, and weekend work where it makes sense.

Do you carry commercial liability insurance and WSIB?

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Yes. L&B Roofers Inc is fully insured with commercial general liability and WSIB coverage. Certificates are available on request for property managers and building owners.

Do you offer maintenance contracts?

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Yes. Scheduled maintenance visits with a written report after each visit — this is the single best way to protect the roof asset you already have.

Can you handle multi-building portfolios?

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Yes, we service property management portfolios across the GTA with consistent reporting and predictable scheduling.

— Free Estimate

Ready to get started?

Call for a free, no-obligation estimate. Same-day response across the GTA for most requests.