Serving London & Middlesex County

Commercial Roofing Company in London, Ontario

Trusted London roofers for all your commercial and industrial roofing needs — specializing in flat roofs, metal roofing and cladding, at any scale. Residential roofing and siding for London homes too.

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No obligation — tell us a bit about your building.

We'll call you within one business day. Your details are never shared or sold.

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Call Us Anytime(226) 774-3050
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Connect With Uslondonroofing519@hotmail.com
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Roofing Emergencies?We're Available 24/7

For all your commercial & industrial roofing needs

24/7
Emergency roof response, seven days a week
Free
On-site assessments & written quotes
100%
Licensed, insured & WSIB-covered work

From a simple repair to a long-term roof solution

A Professional, Certified Roofing Company Delivering Exceptional Results

London Commercial Roofing stands out through our commitment to safety, quality workmanship, and doing the job right. We're licensed to perform commercial roofing work, fully insured, WSIB-compliant, and we stand behind every job with dependable, accountable service across London and Middlesex County.

A Different Kind of Roofing Company in London

Choose us and you get quality work from professional, reliable roofing teams who stay at your service from first assessment to final inspection.

We're Here for You Throughout the Process

In an industry slow to modernize, we've built our company on real customer service — clear communication, written scopes, and no surprises.

Built on Quality and Safety

WSIB-compliant, IHSA-trained crews, manufacturer-certified installs, and warranties on both materials and labour.

About Us

Why building owners pick us for the job

The Right Roofer for the Job — and Here's Why

Not every roofer is the right fit for every job. Here's where we genuinely earn the call — no inflated numbers, just what actually matters when it's your building and your money on the line.

For your flat or low-slope roof

Flat and commercial roofing is our specialty — not a side job squeezed in between residential shingle work. Your building gets crews who install TPO, EPDM and modified bitumen every day, and who detail the seams and flashings for Southwestern Ontario's freeze-thaw. Flat roofing →

When it's an emergency

We're London-based, so when a roof fails we're not dispatched from hours away. One call, 24/7 — and we stop the water first, protecting your interior and inventory before we plan the permanent fix. Emergency response →

When you're not sure: repair or replace

We recommend a repair when it's the smart call and a replacement only when it's genuinely warranted — even when the repair is the smaller job for us. That's not a slogan: a St. Thomas customer, Irving, had us try a repair first instead of a costly new flat roof, and it held through 2–3 days of straight rain. Read his review →

For a large industrial roof

Acre-sized warehouse and plant roofs get phased around your operations so you keep running — with the membrane sized for the span, the rooftop traffic and the real drainage volume. Serving London to Woodstock →

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Our roofing expertise

Commercial Roofing Services in London

From a simple repair all the way to a full replacement, we cover every commercial and industrial roofing need under one roof. Not sure what's going wrong up there? See the common roof problems we diagnose and fix across London.

Roof repair crew carrying out commercial roof repair in London, Ontario

Commercial Roof Repair

Reliable roof repair to protect the safety and operations of your commercial property — leaks, flashing, punctures and storm damage.

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Roofing crew performing commercial roof maintenance in London, Ontario

Commercial Roof Maintenance

Scheduled inspections and preventive maintenance plans that stop leaks and extend the life of your roof.

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Finished flat EPDM commercial roof replacement in London, Ontario

Commercial Roof Replacement

Full flat and low-slope replacements tailored to your building and budget, phased around your operations.

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TPO and EPDM single-ply commercial flat roof on a warehouse in London, Ontario

TPO & EPDM Flat Roofing

Single-ply membranes — heat-welded TPO and rubber EPDM — built for Ontario freeze-thaw and long service life.

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Roofers installing a new commercial roof in London, Ontario

Commercial Roof Installation

New-construction and full-system installations designed to protect your property for the long term.

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Roofer performing 24/7 emergency commercial roof repair in London, Ontario

24/7 Emergency Roofing

Emergency response, day or night — we stop the water first, then plan the permanent fix.

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Architectural standing seam metal roofing and cladding in London, Ontario

Metal Roofing & Cladding

Standing-seam metal roofing, architectural cladding, ACM panels, and custom sheet-metal flashing and fabrication.

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Aerial view of a commercial flat roof inspection in London, Ontario

Roof Inspection & Infrared Scanning

Documented condition reports, infrared moisture scanning, tapered insulation, roof safety systems and skylights.

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Leading industrial & commercial roofing specialists in London

Specialized Solutions for Large-Scale Facilities

Many companies offer general roofing. We specialize in the heavy-duty industrial and commercial work — bringing the equipment, insurance, and technical expertise required for large-scale projects that standard roofing companies aren't equipped to handle.

Large-scale commercial flat roof with rooftop plant on an industrial facility in London, Ontario

Why Industrial Clients Choose Us

We handle everything from sprawling manufacturing plants to high-rise commercial hubs. Our crews are trained for high-volume projects, and we plan our workflow around your production schedule to keep business disruption to a minimum. We use industrial-grade reinforced materials engineered to withstand chemical exposure and extreme Ontario weather.

Our Commitment to Excellence

As your dedicated commercial roofing partner, we don't just provide a service — we build a long-term relationship. We deliver durable, code-compliant, and cost-effective roofing systems built for the most demanding buildings in London.

Shaping your building with cutting-edge metalwork

Metal Fabrication, Cladding & Architectural Systems

We deliver high-quality custom metal fabrication for commercial, industrial, and architectural projects — durable, innovative metal solutions that elevate any building.

Explore Metal & Cladding Get a Free Quote
Roofers installing a residential roof for a homeowner in London, Ontario

Residential & home services

We Look After London Homes Too

Large commercial and industrial roofs are our specialty — but London homeowners get the same crews, the same insurance, and the same warranties. Roofing plus the exterior details that keep water out and curb appeal up.

  • Residential roofing — Economical & Lifetime
  • Siding installation
  • Soffit, fascia & eavestrough
  • Skylights, sun tunnels & roof windows

Explore Home Services

Commercial roofing done right — the first time

The Best Business Spaces Have the Best Roofs

We're your one-stop solution for beautiful, durable, and affordable commercial roofing. We follow industry-leading practices so every roofing job is done right the first time. All our London commercial roofers are insured, certified, and trained to deliver budget-friendly, high-quality service. Get a free estimate today.

Benefits of Hiring Our Experts for Commercial Roof Repairs

Relying on amateur handymen for commercial roofing is a costly mistake — roofing demands specific knowledge, tools, safety equipment, and experience. Here's what you get with our team:

  • We follow all local building codes and compliances
  • Assurance of top-quality materials and workmanship
  • Roofers who are insured, certified, and thoroughly trained
  • We adhere to all safety protocols (WSIB / IHSA)
  • Save on costly future repairs with lasting fixes
  • We take on the special, complex roofing cases others avoid

Why choose us

Eight Reasons London Businesses Trust Us With Their Roof

Honesty

Need help with your roof? We give you a straight answer — repair when it's smart, replace only when it's warranted. No upsells you don't need.

Warranty

Your roof matters to us in its tenth year as much as its first. Every install is backed by manufacturer and workmanship warranties.

Local Business

We're London-based and locally owned — involved in our community and invested in the buildings we work on right here in Middlesex County.

Competitive Value

We won't always be the cheapest quote, but we promise you'll be happy with the value we deliver for years to come.

Dependability

We show up, communicate clearly, and finish what we start — helping London building owners with roofing and exterior work they can rely on.

Peace of Mind

Our liability insurance and WSIB coverage protect you from all claims, so a roofing project never becomes your liability.

Workmanship

Skilled, trained installers who take pride in the details — the flashing, seams, and drainage that decide whether a roof lasts.

Trust

Our business is built on your trust in our service, and we work harder than anyone else to keep it on every job.

Testimonials

What London Building Owners Say

★★★★★

"We had called in for our roof to be serviced and we got a response quickly. The team arrived at our house the same day very quickly, and they provided courteous and great service. Our experience with this company was great and we would definitely recommend them to anyone looking for something to be done with your roofs. Thank you for making this a pleasurable experience."

— John, London
★★★★★

"These guys are excellent at their job. They are very attentive and care deeply about doing it right and making sure the customer is happy. I was very pleased with the quality of work and the excellent customer service they provide, not to mention the very competitive pricing. Highly recommended!"

— Luke, Strathroy
★★★★★

"I contacted them for a flat roof quote as they have done roofing work previously for my elderly parents many years ago.

Originally I had requested a quote for flat roof replacement, they did say that they can still come by and inspect the roof for a fee with credit towards cost of a repair and see if it was still repairable and possibly avoid a costly new flat roof. They did find some obvious deficiencies and pointed them out, also stated that they could repair it without any warranty and that the leak should stop.

Just so happened that we had a lot of rain for 2-3 days straight after the repair and there was no leaks inside the home. We were very pleased with the roof repair and this bought us some extra time until we replaced the entire roof to prevent future issues."

— Irving, St. Thomas

Roofing warranties

Protected by Materials & Labour Warranties

We're dedicated to the highest-quality roofing for commercial and industrial properties. Our warranties cover both materials and labour, so your roof stays secure and effective for years. With trusted manufacturer warranties and expert craftsmanship, we guarantee long-lasting protection for your building.

What we work on

Buildings We Roof

  • Commercial buildings
  • Retail & shopping centres
  • Hospitals & healthcare
  • Offices & public buildings
  • Food establishments
  • Warehouses & factories
  • Schools & learning centres
  • Government buildings
  • Libraries & museums
  • Multi-unit residential

See all industries we serve →

Get a Free Commercial Roof Assessment

Serving London, Ontario and Middlesex County. Same-day response on emergency leaks.

Get a Free Quote Call (226) 774-3050

Recent from the blog

Commercial Roofing Insights

How long does a TPO roof last in Ontario?

What freeze-thaw, membrane thickness, and maintenance mean for your roof's lifespan.

7 signs your commercial roof needs replacing

The warning signs building owners should never ignore before winter.

Commercial roofing FAQs

Straight answers on cost, timelines, warranties, and repair vs. replacement.