

COMMERCIAL ROOFING St. Catharines
St. Catharines’ Local Commercial Roofing Company Since 1998
Get a flat roof expert on your property this week.
Get a Roofing Quote
FREE ROOF REPORT
One Cracked Vent Gasket Can Cost You Thousands in Interior Damage
Watch Kyle Hewines walk through a plumbing vent repair on a commercial roof in St. Catharines. Vent gaskets shrink and crack over time from UV exposure, and once the seal fails, water follows the pipe straight into your building's interior.
Get a clear, documented picture of your roof's condition so you can budget with confidence and stop reacting to surprises:
50+ Point Roof Inspection
by commercial roofing experts
Photo Documentation
of all wear, damage, and deterioration
Detailed Summary of Defects
with prioritized action items and cost estimates

ST. CATHARINES FLAT ROOF SERVICES
Every Flat Roof Service You Need, From the Experts Down the Road
Our office is on Vansickle Road. If your roof needs attention, just give us a call and we'll be there in 15 minutes or less.
Flat Roof Repairs
We've repaired flat roofs on just about every type of commercial building in St. Catharines. We find the source, fix the problem, and get your roof back to performing. No unnecessary scope, no repeat visits for the same issue.
ViewRepair Services
Flat Roof Replacement
hen your roof is past the point of cost-effective repair, we replace the full system. Modified bitumen, TPO, or EPDM selected based on your building, your budget, and how long you plan to hold the property.
ViewReplacement Services
Emergency Leak Repair
Got an active leak? We're on our way. Our team responds fast to contain the damage, stop water from spreading into your building's interior, and protect your property while we assess the full scope and plan the permanent fix.
ViewEmergency Services
Penetration Repairs
Every drain, skylight, HVAC curb, and vent that passes through your membrane is a potential failure point. We inspect, reseal, and replace any leaky penetration flashings in days.
View Penetration Repairs
Drone Roof Inspection
A drone roof inspection provides you with a complete aerial record of your Scarborough roof. Ponding, seam failures, and flashing wear all documented from above.
ViewDrone Roof Inspection
Skylight Repair & Install
Failed gaskets, cracked lenses, and fogged units all compromise your building's envelope and energy efficiency. We repair and replace single dome units to full strip skylights.
ViewSkylight Repairs
MAXIMIZE ROOF LIFE WITH A
Preventative Roof Maintenance Plan
Avoid surprise repairs and costly replacements by extending roof life with preventative maintenance tailored to your property.
Reduce costly repairs
Prevent leaks & damage
Extend roof life

St. Catharines COMMERCIAL ROOFING COST
How Much Does Commercial Roof Repairs Cost in St. Catharines?
| Commercial Roofing Service | Price Estimate * |
|---|---|
| Flat Roof Repairs | $250 – $1,250 |
| Skylight Repairs | $200 – $750 |
| Elevator Shaft Repairs | $300 – $1,700+ |
| Waterproofing / Resealing | $1 – $5 per sq. ft. |
| Flat Roof Replacement | $3,000 – $11,000 per 1,000 sq. ft. |
| Drainage Repair | $75 – $500 |
Replacing a 50-Year-Old Flat Roof With Chronic Ponding Issues
Replaced 7,500 sq ft pitch & tar roof with a new BUR system
Installed additional drainage to eliminate water ponding
Zero structural damage to building during tear-off and install
Other Roofers Recommend Videl
Mark Pallin is Senior Manager at Sanyo Canadian Machine Works, a manufacturing facility that had been dealing with recurring roof leaks for years. After eight ceiling tiles collapsed onto office desks overnight, he called his brother — a retired professional roofer — for a recommendation. The answer was Videl.
Crawford Melvin
"Kirby and his team are great to work with, do quality work, and are reliable and responsive from pricing through to execution."
Commercial Property Owner
Pat Villani
"Videl Roofing is most trustworthy to get the job done right! The work site was left very clean on completion of all work."
2 Lowell Avenue, St. Catharines
"What sets Videl Roofing apart is the culture of the company. Their team is honest and they understand the scope of what's required at a fair price."
Dave Baird
Managing Director at WDI Group
How long have you been putting off that roof inspection?
Your roof has been on your list long enough. Our office is fifteen minutes away and our Roof Condition Report is free. We'll walk your roof, document every issue, and hand you a detailed report with prioritized action items and cost estimates within 24 hours.
Need Emergency Service?
Call (905) 397-1198
The Videl Difference
Your Rooftop Is Your Most Expensive Asset to Ignore. We Ensure You Maximize Roof Life.
90-Minute Response Guarantee
Our St. Catharines and Mississauga offices put us less than an hour from Hamilton in either direction. We'll be on-site within 90 minutes or the service call is free.
$5 Million Liability Insurance
Every flat roof repair is backed by $5,000,000 in liability insurance coverage. That means your property, your tenants, and your investment are protected from day one through project completion.
28+ Years on Ontario Rooftops
We've been repairing, replacing, and maintaining commercial flat roofs across Southern Ontario since 1998. That experience means faster diagnostics, fewer surprises, and roofing systems that last.
#MaximizeRoofLife
Expert advice on commercial roofing, repairs, and maintenance.
Is it possible to reduce the cost of a roof replacement?
One of the most effective ways is reusing your existing insulation. If it's dry and structurally sound, keeping it in place eliminates disposal costs, reduces material spend, and speeds up the install. We saved one client over $16,000 on a single project this way. At Videl Roofing, we're always looking for ways to help local Ontario property owners and building managers keep costs down without cutting corners on quality.
How do I budget for a major roof replacement on a commercial property?
Start with a capital expenditure plan that accounts for your roof's current condition, its estimated remaining lifespan, and the full cost of replacement including materials, labour, and potential insulation upgrades. Planning ahead lets you phase the expense instead of reacting to an emergency.
Why do commercial flat roofs fail prematurely?
Download our State Roofing Report for Ontario. In it we studied 15 commercial and industrial flat roofs across Ontario and found 58 active failure points. The top causes were UV degradation, membrane aging and delamination, and thermal expansion. But the real issue behind all of them was deferred maintenance.
What makes industrial roofing different from standard commercial roofing?
Industrial facilities typically have larger roof spans, heavier rooftop equipment, more penetrations, and stricter operational requirements around downtime and safety. The membrane selection, drainage design, and installation logistics are more complex than a standard retail plaza or office building.
What's the best flat roof system for commercial buildings in Ontario?
It depends on your building type, your budget, and how long you plan to hold the property. Modified bitumen is the most common choice for its durability and repairability. TPO and PVC offer strong chemical resistance and energy efficiency. BUR systems are still a solid option for buildings that need heavy-duty performance.
Videl Roofing Services in Southern Ontario
We back every service call with a 90-minute response guarantee during business hours (8:30am - 4:30 pm). If we don't show up in time, you don't pay.


