Garage Door Panel Replacement for Dunwoody Homes

Time on the Job

A single panel swap on a sectional door usually runs under two hours once we've got the right panel in the truck. That's the catch: matching panels gets harder the older the door. Housing in this service area went up mostly between 1951 and 2007, with the bulk of it dating to the 1960s and 70s, so a lot of the doors we're pulling panels on are themselves 20 to 40 years old. If your door is an original from that era, the manufacturer may not run that profile anymore, and we're sourcing a close match rather than an exact one. We'll tell you straight if that's the case before we start, not after we've charged for the trip. Full-door replacement sometimes ends up faster and cheaper than chasing a discontinued panel, and we'll say so when it's true. Jobs where the whole section needs reordering from a supplier can push a day or two past the first visit - that's the one honest wait we can't shortcut.

What the Fix Involves

We pull the damaged panel's hinges, disconnect it from the track rollers, and check the section above and below for stress cracks before anything new goes in. On steel doors from the older housing stock here, the hinge holes have often stretched or rusted slightly, so we're not just bolting a new panel to old hardware - we check hinge fit and swap it if it's worn thin. If the door is insulated, we match the panel's R-value as close as the replacement stock allows; an uninsulated patch on an insulated door just creates a cold spot and a visible seam. Once the panel's in, we re-square the door in the track and run it through a full cycle before we call it done, because a panel that's slightly off can bind a roller within weeks. We don't paint-match on-site - if your door's been repainted over the years, the new panel will be close but not identical until it weathers in.

What You Are Seeing

Most calls start with a visible dent from a car bumper or a cracked panel from a dropped basketball or a stray branch, but we also see slow damage that owners didn't connect to the panel itself: a bowed section that won't seal at the bottom, a seam that's split along the rib where steel fatigued after years of expansion and contraction, or a panel that's rusted through from the inside where moisture sat against the insulation. On the older end of the area's housing stock - doors original to 1960s and 70s builds - we often find panels that were never a great fit to begin with, patched once already with a mismatched section. If your door is sticking at one panel but running fine everywhere else, that's usually a track alignment issue riding on the back of the panel damage, not a separate problem.

Why This Fails Locally

This area sits in a cold-moderate climate band, which means steel panels here go through real freeze-thaw cycling every winter without the deep, sustained cold that would keep moisture frozen out of seams. That in-between pattern is what drives panel failure: water gets into a hairline crack during a thaw, then expands when it refreezes, and the crack grows a little wider each cycle. Combine that with a housing stock where a large share of doors are original equipment from the 1960s and 70s across the area's established neighborhoods, and you get a steady stream of panels that were fine for decades and then fail in a single bad winter. It's not a defect in the door - it's what 50-plus years of seasonal cycling does to steel and the foam core behind it. Newer vinyl-clad or aluminum panels handle this cycle better, which is worth knowing if you're replacing more than one panel on an older door.

Frequently asked questions