Custom-Bent On Site
Aluminum & Copper Capping
Wrap your fascia, trim, windows, and doors in custom-bent metal — so the wood underneath is sealed off from the weather and you’re done scraping and repainting every few years.
Aluminum & Copper
No More Painting
In-House Crews
Free Estimates
Get A Free Capping Estimate
Tired of painting trim? Let’s seal it for good.
Free, no-obligation, itemized. We’ll tell you straight what it needs.
Done Scraping And Repainting
The Wood Trim Outside
Takes a Beating
The wood trim on the outside of your house takes a beating. Sun, rain, freeze-thaw, and the occasional wind-driven storm all work on it year after year, and eventually it splits, rots, and needs painting again. Capping puts a stop to that. Garrison Roofing wraps your fascia, trim, windows, and doors in custom-bent aluminum or copper, so the wood underneath is sealed off from the weather and you’re done scraping and repainting every few years.
We’ve been doing exterior work across Philadelphia and the surrounding areas for over 20 years. Capping is one of those jobs that looks simple from the ground and isn’t. Done right, it’s clean, tight, and invisible. Done wrong, water gets behind it and rots the wood you were trying to protect. We do it right.
Custom-Bent On Site
What Capping
Actually Is
Capping is covering exposed exterior wood with a thin, custom-formed layer of metal. Instead of tearing out old trim, we measure it, bend the metal to match on-site with a brake, and fit it snug over the wood so nothing is left exposed.
The result is a finished surface that never needs paint, sheds water, and holds up for decades. It’s the same craft that goes into a good metal roof, just applied to the details around your roofline and openings.
Most Exposed, Most Annoying
Where Capping
Gets Used
01
Fascia Capping
The boards running along your roofline behind the gutters — one of the first spots to rot when water gets in.
02
Trim Capping
The wood framing around the face of the house, corners, and edges.
03
Window Capping
Wrapping the wood frames and sills around windows so they stop soaking up water.
04
Door Capping
The same protection for door frames and thresholds.
05
Roofline Capping
Sealing the exposed edges where the roof meets the trim.
Two Reasons People Call
Why Homeowners
Cap Their Trim
It almost always comes down to two things: they’re sick of the upkeep, and they want to protect the wood before it fails.
No more painting. Aluminum and copper don’t need paint. Once it’s capped, that trim is done for good.
It stops wood rot. Sealed wood doesn’t absorb water — that’s the whole point.
It cleans up the look. Fresh, straight metal lines make an older house look sharp again, without replacing all the trim.
It lasts. Aluminum holds up for decades. Copper lasts even longer and develops a patina people pay extra for on purpose.
Which Way To Go
Aluminum or Copper?
Most Of Our Work
Aluminum
Durable, available in a range of colors to match your house, and the practical choice for the vast majority of homes. It won’t rust, it won’t need paint, and it does exactly what it’s supposed to at a sensible cost.
The Premium Option
Copper
Costs more up front, but it lasts generations and ages into that rich, warm patina you see on historic homes. On an older Philadelphia rowhome or a home where the details matter, copper capping is worth a real look.
Because we do full metal roofing — including standing seam and copper — we handle both materials with the same eye for a tight, watertight finish. Something a lot of contractors who only cap trim can’t say.
Not sure which way to go? We’ll walk your house with you and tell you honestly what makes sense for your home and your budget. If it were our own house, that’s the conversation we’d want.
Our Own Crews
Capping Done By
Garrison’s Own Crews
The people who show up to cap your trim work for Garrison. We don’t sub this work out — one crew, one standard, one company standing behind the finished job.
GAF Certified Residential Roofing Contractor — the same standard we bring to every roof and exterior job
In-house crews, no subcontractors — no revolving door of contractors on your property
20+ years of local experience, including older Philadelphia rowhomes where trim details need care
Certified Spanish-speaking team — so every homeowner gets a clear explanation
Honest, no-obligation assessments — free, itemized estimates on every job
Capping usually goes hand in hand with other exterior work. If you’re already looking at vinyl siding or new gutters, capping the fascia and trim at the same time is the efficient way to do it. See the full lineup on our exterior services page.
Recent Capping Work
Capping, Coping
And Edge Metal
Aluminum and metal capping over trim, sills and parapets so water sheds instead of soaking in. Tap any photo to open it full size.
Straight Answers
Frequently Asked Questions
What is capping and why do homes need it?
Capping is wrapping exposed exterior wood — fascia, trim, windows, and door frames — in custom-bent aluminum or copper. Homes need it because bare wood trim absorbs water, rots, and needs repainting every few years. Capping seals the wood off from the weather so it stays protected and stops needing maintenance.
What’s the difference between aluminum and copper capping?
Aluminum is the practical, cost-effective choice for most homes. It’s durable, comes in many colors, never needs paint, and won’t rust. Copper costs more but lasts generations and develops a distinctive patina over time, which makes it popular on historic and higher-end homes. Both do the same protective job; the difference is longevity and appearance.
Does capping prevent wood rot on trim and fascia?
Yes, that’s the main reason to do it. Wood rots when it repeatedly absorbs and holds moisture. Capping covers the wood with a sealed metal layer so water sheds off instead of soaking in, which is what keeps fascia and trim from rotting — especially the boards behind your gutters.
How long does capping last before it needs replacement?
Aluminum capping holds up for decades with essentially no maintenance. Copper lasts even longer, often generations. As long as it was installed tight and watertight to begin with, capping is one of the longest-lasting, lowest-maintenance upgrades you can make to a home’s exterior.
Free & No-Obligation
Get a Free
Capping Estimate
Tired of painting your trim, or worried the wood behind your gutters is starting to go? Get an honest recommendation on aluminum or copper capping for your home.