Roof Penetration Repairs & Installation
Every hole in your roof is a future leak waiting to happen
Drains, vents, curbs, hatches, and pipes are where water finds its way in. We seal them properly, the first time.
(905) 397-1198 Claim Your FREE Roof ReportStart with a Free Roof Report
We’ll inspect your roof and provide the answers you need to budget, plan, and protect your property.
WHY Penetrations leak
Every Penetration on a Flat Roof Has a Weak Point
Vents, drains, curbs, and pipes each fail at different points and each call for a different repair. UV breaks down sealants and gaskets. Thermal movement pulls flashings away from the membrane. Foot traffic and vibration loosen connections.
Watch Kyle Hewines seal a leaking plumbing vent on a commercial flat roof. We often see this penetration failure on flat roofs across Ontario, and the repair process is straightforward with the right materials.
Want us to diagnose your roof penetrations? Fill out the form above for a FREE Roof Condition Report.
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
Roof Penetration Repairs
A Simple 3 Step Process
Roof penetration repairs run from a few hundred dollars for a single vent or pipe boot reseal to several thousand for a full curb or drain rebuild. Most repairs are completed in a single visit, and every job is quoted as a fixed price during your free on-site assessment.
What kind of penetration do you need help with?
Plumbing vent stacks
Pipe boots and cones
Roof access hatches
Pitch pockets
Gas line penetrations
Electrical conduit penetrations
Exhaust fans and vents
Solar mount penetrations
Signage and antenna mounts
Expansion joints
Prepare and prime the substrate
We clean the penetration, remove failed sealant and flashing, and prime the membrane so the new materials bond properly.
Set the curb and flash perimeter
Each penetration gets flashed with a different material such as rubberized asphalt for vents and membrane tie-ins for curbs and drains.
Finish with a UV-rated top layer
The final layer uses aluminum fibrated sealants, cap sheets, or metal flashings to protect the repair from sun, freeze-thaw, and foot traffic.
Before & After
See the Work on Real Ontario Roofs
Every photo below is a Videl repair on a commercial or industrial flat roof.
Cones & Pipes
Before
After
Hover to see the finished result
Tap to see the finished result
Drains
Before
After
Hover to see the finished result
Tap to see the finished result
HVAC Curb Re-flashing
Before
After
Hover to see the finished result
Tap to see the finished result
Roof Access Hatches
Before
After
Hover to see the finished result
Tap to see the finished result
Sign Up for Maintenance
Maximize Your Roof’s Lifespan
Inspected against a 50+ point checklist, twice a year
Sealants, gaskets, and flashings caught before they fail
Photo documentation of every penetration on your roof
Priority scheduling when repairs are needed
Proven to extend roof life by 5 to 10+ years
Flat Roof Experts since 1998
Properties Trusting Videl with Their Roofs
Brampton
Can an HVAC contractor seal a roof penetration, or does it need a roofer?
An HVAC contractor can install the unit, but the flashing and membrane tie-in should be done by a roofer. Most of the leaking penetrations we repair started as a third-party install where someone sealed around their own work with caulking that wasn’t built for a flat roof. A proper penetration is flashed into the membrane, not sealed on top of it. Learn more about HVAC curb repair →
How often should roof penetrations be inspected?
Twice a year, minimum. Spring and fall. Penetrations are the first place a flat roof fails, and the failure usually starts small — a hairline crack in a sealant, a lifted corner of flashing, a gasket that’s dried out. Catching it during a routine inspection is a 15 minute fix. Waiting until after water has reached the ceiling can lead to a premature (and costly) roof replacement.
Will adding a new penetration void my roof warranty?
It can, if it’s done by someone outside your manufacturer’s approved installer list. Most commercial flat roof warranties require that any new penetration, curb, or cut in the membrane be installed by a certified contractor using approved materials. We work with the major Ontario manufacturers and can add a penetration without breaking your existing warranty. Always check with us before letting another trade cut into your roof.
Can you repair a leaking penetration in winter?
Yes, though the approach changes. Cold weather affects how certain sealants and membranes cure, so some permanent repairs have to wait for warmer temperatures. For active leaks and emergencies, we can apply a cold-weather temporary seal that holds through the winter and then come back in spring to do the permanent fix. If you’ve got water coming into the building right now, call us.
How long does a properly sealed penetration last?
A well-installed penetration on a maintained roof should last the full life of the roof itself, which is 20 to 30 years on most commercial flat systems. The catch is “maintained.” Sealants and gaskets wear out faster than the membrane around them, and a penetration that’s been ignored for 10 years is almost always the first thing to leak. Our State of Commercial and Industrial Roofing in Ontario breaks down the most common failure patterns we see in the field.
