Service Areas · Toronto

Commercial Roofing in Toronto

Delta Roofing is a commercial roofing contractor serving Toronto and the wider GTA from our head office on Martin Grove Road in Etobicoke. We've protected the city's commercial, industrial and institutional roofs for over two decades.

Toronto's dense commercial core and aging building stock demand experienced flat-roof work: tight downtown logistics, crane coordination between buildings, and retrofits that tie into existing HVAC and structure without voiding warranties. Our crews are built for exactly this kind of complex, high-stakes environment.

We deliver full re-roofing, reflective cool-roof coatings, alterations and retrofits, preventive maintenance and 24/7 emergency response across Toronto, with a live after-hours dispatcher and a rapid on-site commitment.

Downtown, commercial and institutional roofs

Our Toronto projects span the dense downtown and financial core, commercial and institutional buildings across North York, Scarborough and Etobicoke, and older building stock that needs experienced re-roofing and retrofit work tied cleanly into existing structure and HVAC.

  • Downtown Core
  • Financial District
  • North York
  • Scarborough
  • Etobicoke
  • Liberty Village
  • Port Lands
  • 0 Years in business
  • 0 Roofs completed
  • 0 Sq ft installed
  • 0 Emergency response
  1. Site Assessment & Report

    We inspect the roof, document conditions and deliver a written report with photos, so you know exactly what you're dealing with before you budget.

  2. Proposal & Scope

    A detailed, fixed scope and transparent proposal, system options, phasing, timeline and manufacturer warranty terms, with no surprises.

  3. Installation & Warranty

    Certified crews install to manufacturer spec, keep your site running, and hand over documented manufacturer and workmanship warranties.

Certified, insured and accountable

  • WSIB clearance in good standing
  • $10M commercial liability insurance

Recent work

Commercial roofing projects near Toronto

Industrial re-roof over live assembly lines

Industrial

Full tear-off and replacement over active, running assembly lines, divided into tight daily phases, materials staged on weekends.

Size
110,000 sq ft
Downtime
Zero
Warehouse & showroom TPO re-roof

Re-Roofing

Multi-tenant warehouse & showroom — a saturated built-up roof replaced with a fully adhered 60-mil TPO system over new polyiso insulation.

Size
32,000 sq ft
Timeline
14 days
Silicone coating restoration

Coating

Aged modified-bitumen roof restored, flashing splits repaired, surface cleaned and a high-solids silicone coating applied to extend certified life.

Size
15,000 sq ft
Life added
10 years

In Toronto?

Book a free roof assessment in Toronto

Tell us about your building and we'll respond fast, usually the same business day, with a proposal or an on-site inspection.

Get started

Request a quote or roof assessment

Tell us about your building and roof. We respond fast, usually the same business day, and can book an on-site assessment.

  • No-obligation written proposal
  • Property & facility managers welcome
  • Emergencies? Call (416) 798-0977

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