Professional Metal Flashing for Lower Mainland Homes
Metal flashing is one of the most critical yet overlooked components of your home's weather protection system. Installed at every vulnerable junction, around windows, doors, rooflines, and wall transitions, proper flashing directs water away from the building structure and prevents costly damage. Tomron Construction provides expert flashing installation and repair as both a standalone service and an integral part of every siding and envelope project we complete.
What's Included
Custom-bent flashing for perfect fit at every junction
Window, door, roof, and wall-transition flashing
Corrosion-resistant aluminum and galvanized steel
Integration with siding and building envelope systems
Repair and replacement of failed or missing flashing
Prevents water intrusion, rot, and mould growth
Warning Signs
Signs You May Need Metal Flashing
Water stains on interior walls near windows or doors
Visible rust, gaps, or lifted edges on existing flashing
Peeling paint or bubbling around window and door frames
Musty odours in rooms along exterior walls
Dark streaks or discolouration on exterior siding near roof transitions
Soft or spongy trim boards around windows
Ice dams or water pooling at roof-to-wall intersections in winter
Recognise any of these? Book a free inspection and we will assess your home at no cost.
Why Flashing Is Critical in BC
The Lower Mainland's extended rainy seasons mean your home faces months of sustained moisture exposure every year. Water is persistent, it finds every gap, seam, and joint in your exterior. Flashing acts as a physical barrier at these vulnerable points, redirecting water outward and away from the building structure. Without proper flashing, or with deteriorated flashing that has failed over time, water enters the wall cavity and causes rot, mould, structural damage, and insulation failure that can cost thousands to remediate.
Our Approach to Flashing
Tomron Construction treats flashing as essential construction, not an afterthought. We custom-bend every piece of flashing on-site to ensure a precise fit for your specific window frames, door headers, roof-to-wall transitions, and wall penetrations. We use high-quality aluminum and galvanized steel rated for decades of exposure to the Pacific Northwest climate. When flashing is part of a larger siding or envelope project, we install it in the correct sequence within the wall assembly to ensure seamless integration with house wrap, moisture barriers, and cladding materials.
Types of Flashing We Install
Every junction on your home's exterior has a specific flashing requirement. Head flashing above windows and doors directs water outward over the cladding. Sill pan flashing beneath windows catches and drains any water that penetrates the frame. Kick-out flashing at roof-to-wall intersections redirects water away from the siding and into the gutter. Step flashing along rooflines provides a shingle-by-shingle seal. Drip cap flashing over horizontal trim prevents water from wicking behind boards. We assess each transition on your home and install the correct flashing type, in the correct sequence, with the correct overlaps to create a continuous water management system.
Flashing as Part of a Larger Project
Flashing is most effective and most cost-efficient when integrated into a siding replacement, window installation, or building envelope project. When you bundle flashing with a larger exterior project, we install everything in the correct construction sequence, which eliminates the coordination gaps that cause failures when work is done piecemeal. If your home needs only flashing repair or replacement, we can also handle that as a standalone service, selectively removing and reinstalling siding panels to access and correct problem areas without a full tear-off.
Trusted Partners
Products & Brands We Use
We work with industry-leading manufacturers to ensure every project uses the best materials for the Lower Mainland climate.
FAQ
Common Questions
Can't find what you're looking for? Contact us and we'll be happy to answer your questions.
Signs of flashing failure include water stains on interior walls near windows or doors, visible rust or gaps in exterior flashing, peeling paint around window and door frames, and musty odours indicating hidden moisture. We offer free inspections.
In many cases, yes. Depending on the location and extent of the issue, we can selectively remove and reinstall siding panels to access and replace failed flashing without a full siding tear-off.
Ready to Transform Your Home?
Get a free quote from our team. We will inspect your property, discuss your goals, and provide a detailed proposal, no obligation.