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Window and Door Capping Mission

Stop Painting Trim With Window and Door Capping In Mission

Rotting wood trim around your Mission windows lets moisture into your walls.

Paragon Exteriors caps your Mission windows and doors with custom aluminum that seals out moisture permanently.
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Trim issues ruining your home's exterior

Moisture that gets past the trim can rot wall sheathing, attract pests, and drive up energy bills. In this area’s wet climate, the problem worsens each rainy season.

Capping your windows and doors eliminates the cycle of scraping and painting exterior trim. It provides a clean, finished look that lasts for decades without fading or peeling.

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Window and Door Capping Costs in Mission
This price guide outlines estimated costs for window and door capping projects in Mission. Rows detail the capping material specification, while columns categorize the profile and bending complexity required for the installation. To determine an estimated project cost in Canadian dollars, locate the intersection of your chosen trim material and the necessary profile detail.
Window and Door Capping in Mission
Window and Door Capping Mission Capping Material SpecificationSimple Bend PricesStandard Profile PricesCustom Multi-Break PricesComplex Architectural Prices
Standard Window and Door CappingCAD 800 – CAD 2,000CAD 1,800 – CAD 4,500CAD 3,500 – CAD 8,500CAD 6,500 – CAD 16,000
Aluminum or Vinyl SheetingCAD 800 – CAD 2,000CAD 1,800 – CAD 4,500CAD 3,500 – CAD 8,500CAD 6,500 – CAD 16,000
Heavy Gauge Aluminum CoilCAD 1,000 – CAD 2,400CAD 2,200 – CAD 5,200CAD 4,200 – CAD 9,800CAD 7,500 – CAD 17,500
PVC Coated Trim CoilCAD 1,100 – CAD 2,600CAD 2,400 – CAD 5,800CAD 4,600 – CAD 11,000CAD 8,200 – CAD 19,000
These prices are estimates based on general market knowledge and reflect typical market ranges at the time of publication. Actual project quotes in Mission may vary depending on specific property requirements, material availability, site conditions, and timing.

Aluminum Stops Rot Permanently

Moisture is the enemy of wood trim. When paint peels and wood rots, water seeps behind siding and into your walls. Capping windows and doors in Vancouver replaces that absorbent surface with a custom-fit aluminum shield.

We measure, bend, and install each piece on site so it fits every contour perfectly. The metal stays dry, won’t chip, and never needs scraping or painting. This saves you years of maintenance.

Why It Matters in Mission

In Mission, many older homes still have original wood trim. The damp winters and summer storms in the Fraser Valley keep that wood wet for months, speeding up rot. Mission homeowners often notice problems only after the damage is done.

By wrapping that trim with aluminum, you stop rot-causing moisture from getting in. The material can handle Mission’s freeze-thaw cycles and heavy rain without warping or rusting. This keeps your home’s exterior strong for decades.

Bending Aluminum for Mission

We use .024-inch or .032-inch pre-painted aluminum coil stock. This material resists corrosion, even after years of rain in the Fraser Valley. Each piece is measured and bent on site with a portable brake to fit your existing wood trim perfectly. This custom fit stops water from getting in. The aluminum’s baked-on finish won’t peel or chalk, handling Mission’s heavy moisture without needing maintenance.

Installation starts with cleaning the wood and checking for soft spots. We fasten the capping with color-matched trim nails that have neoprene washers to seal the holes. At the top, we tuck the metal under the existing siding or flashing, then apply a bead of exterior-grade sealant to cap the edge. This layered method directs water downward, keeping the wood dry.

Moisture Management for Mission

Wood trim can absorb moisture into the wall. Capping stops that by providing a non-porous aluminum surface that acts as a second drainage plane. In Mission’s damp climate, it is important to let any condensation drain out the bottom to avoid trapping moisture. We leave a small, unsealed drip edge at the sill and head casing to help water escape.

The top joint is the key control layer. We overlap the capping with the existing weather-resistant barrier or head flashing so water runs over the metal, not behind it. This shingle-style lapping, along with the aluminum’s stability, prevents freeze-thaw cycles from loosening the metal. The result is a strong cladding that keeps the building envelope secure year after year.