Professional Flashing in Toronto and the Greater Toronto Area
Flashing is your home's defence against water penetration at joints, edges, and transitions. We install, repair, and replace flashing around chimneys, walls, windows, and roof-to-wall junctions, custom bent on site with our own equipment.
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What Is Flashing?
Flashing sits at every critical junction on your home's exterior: where the roof meets a wall, around chimneys, at window and door headers, and along drip edges. Its job is simple: keep water out. When flashing fails, water finds its way into your home's structure, causing rot, mould, and damage that's often invisible until it's extensive.
At Ontario Seamless Gutters, we carry the equipment to custom-bend flashing on site. That means every piece is made to fit the exact angles and dimensions of your home, with no generic pieces forced into place.
Whether you have a small leak around a chimney or need a full flashing replacement as part of a larger exterior project, we handle it with the same level of precision and care.
Benefits of Our Flashing Service
Water Penetration Prevention
Properly installed flashing is the most effective way to prevent leaks at roof junctions and transitions.
Custom-Bent On Site
We bring metal bending equipment to your property and fabricate every piece to exact specifications.
Protects Your Home's Structure
Good flashing keeps water out of your walls, attic, and foundation, preventing costly hidden damage.
Quality Materials
We use durable aluminum and galvanized steel flashing rated for Ontario's climate.
Root Cause Diagnosis
If you have a leak, we'll find the actual source, not just patch over symptoms.
Fast, Targeted Repairs
Many flashing repairs can be completed in a single visit. We identify and fix the problem quickly.
Ready to Book Your Flashing?
Tell us what's going on. We'll give you honest guidance on the best next step.
How Our Flashing Service Works
We make getting your flashing done simple and stress-free. Here's what to expect.
Tell Us About the Leak
Call us or send a message. Describe where you're seeing water, staining, or damage. Photos help if you have them.
We Investigate
We inspect the area, trace the source of the issue, and explain what we find in plain language.
Custom Repair or Replacement
We fabricate new flashing on site using our own equipment and install it to the proper specifications.
Verified and Clean
We test the repair, confirm the issue is resolved, and leave your property clean and tidy.
Flashing Costs
Transparent pricing with no hidden fees. Get a clear quote before we start.
Most flashing jobs cost between
Price depends on:
No hidden fees • Honest pricing • No obligation
What Our Customers Say About Our Flashing
Real reviews from real customers. See what people are saying about our flashing services.
Common Flashing Problems in Ontario Homes
Ontario's freeze-thaw cycles are tough on flashing. Metal expands and contracts, sealants dry out and crack, and ice buildup can physically push flashing out of position. Over time, even properly installed flashing can develop issues.
The most common problem areas are around chimneys, where the roof meets a side wall, at skylight perimeters, and along drip edges. If you've noticed water stains on your ceiling or walls, especially after heavy rain or snowmelt, flashing is one of the first things we check.
Why On-Site Fabrication Matters for Flashing
Pre-made flashing from a hardware store comes in standard sizes and angles. Your home doesn't. Every roofline, chimney, and wall junction has its own dimensions and pitch. When you force a generic piece into a custom space, you get gaps, and gaps let water in.
We bring our metal bending equipment to every flashing job and fabricate each piece to the exact measurements of your home. It takes a bit more time, but the result is a tighter fit and a longer-lasting seal.
Flashing and Your Eavestroughs
Drip edge flashing (the metal strip along the edge of your roof) plays a direct role in how your eavestroughs perform. If the drip edge is missing, damaged, or improperly installed, water can run behind your eavestroughs instead of into them, causing fascia rot and foundation issues.
When we install or replace eavestroughs, we always check the drip edge. If it needs attention, we address it as part of the job.
Frequently Asked Questions
Common questions about our flashing services. Can't find your answer?
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Learn more →Flashing in Toronto and the Greater Toronto Area
We provide professional flashing services throughout Toronto and the Greater Toronto Area and surrounding areas within a GTA-wide radius. Our local team knows the area well and can typically respond quickly to your needs.
Areas we cover:
Not sure if we cover your area? Get in touch and we'll let you know.
Ready to Talk About Your Flashing Project?
Tell us what's going on and we'll help you figure out the right approach. No pressure, no upselling.