Aluminum capping or wrap around exterior window trim, for a clean, low-maintenance finish that sheds water.
Exterior trim takes a beating from sun, rain and insects. Wood trim needs regular scraping and painting, and bare wood rots when paint fails. Capping wraps the exterior trim in formed aluminum or similar material, so the surface sheds water and holds its color. It is a common finish on replacement windows, especially in older homes where the original trim is sound but needs a protective cover. Homeowners in Nashville choose it to reduce upkeep and to close up gaps around new windows.
We inspect the existing trim to be sure it is sound, replacing any rotted pieces before we cover it. We bend aluminum to fit your trim and fasten it with hidden or low-profile fasteners. We seal the joints with matching sealant and make sure the cap sheds water over the sill and away from the wall. We offer common colors and help you match your siding or trim. We also explain what capping does not do: it covers the trim, it does not fix hidden damage.
Capping over rotted wood hides the damage and lets it spread, so we repair soft trim before covering it.
Aluminum is formed on site to match the profile of each window, so the fit is tight and neat.
Joints and edges are sealed so water runs out and does not sneak behind the cap.
White, tan, brown, bronze and black are common, and we match the color to your home as closely as we can.
Drag the handle to compare.
BeforeAfterSound base for the cap.
Tight, custom fit.
Water directed out.
No regular painting.
Many options.
Neat lines.
Every topic has its own page with what to expect and how we approach it.
Topic guideWindow Energy RatingsU-factor, solar heat gain, visible transmittance and air leakage explained in plain language, with notes on how to…Learn more 
Top brandDAPA maker of caulks, sealants, adhesives and spray foam used around windows, trim and frames.Learn more Top brandSashcoA family-owned maker of sealants and stains for windows, logs, siding and other exterior and interior surfaces.Learn more Pick a window type or repair, set the quantity and add extras to see a ballpark planning range for your project.
You tell us what you want or what the windows are doing, and we set an estimate visit that fits your day.
We measure each opening, check the frames, sills and trim for rot and note options for style, glass and installation method.
You get a plain written scope with the window models, glass packages, trim and schedule, and you approve it before anything is ordered.
The windows are ordered or made to your sizes, inspected when they arrive and the work areas are protected.
We remove the old windows, set the new ones plumb and level, flash, insulate, seal and trim each opening.
We clean up, haul away the old windows if you asked, walk you through the finished work and explain how to care for them.
It protects sound wood by keeping water off it. It does not repair rot that is already there.
Capping has a factory finish. Painting is possible but not usually needed.
Well-fitted capping can look slim and clean. We show samples.
Many years, depending on the material and the sun exposure.
Yes, if the trim is sound or has been repaired.
Window Trim and Casing InstallationNew interior casing, stools and aprons around windows, cut and fitted for clean lines and a finished room.Explore 
Window Colors and FinishesInterior and exterior colors, stains and finishes chosen to suit your siding, brick, trim and style.Explore 
Aluminum-Clad Wood WindowsWood on the inside, aluminum on the outside: a warm interior with a tough, low-upkeep exterior.Explore 
Window Leak and Water Damage RepairFind and fix leaks around windows, repair rotted sills and frames and protect walls from further damage.Explore Tell us about your project and we will call you back to set up a visit.
Or call (615) 357-7797 to talk now.
