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Therma-Tru Impact Garage Doors: The Palm Beach Owner’s Guide
We stock, match, and install Therma-Tru impact garage doors in Palm Beach, with most replacements running between $1,850 and $4,200 installed depending on size and series. Same-week scheduling is standard for us, and if the damage is limited to a panel, a hinge carrier, or a roller assembly, our truck often has the part on it the first visit. Most Palm Beach homeowners discover the problem the same way: after a stretch of wind-driven rain, a door binds on the track, a panel shows delamination at the bottom rail, or the door no longer mates square against the weatherstrip.
Therma-Tru builds impact doors rated for Miami-Dade and Palm Beach County wind loads, but salt air and humidity work on hardware long before the door panel gives out. We see the same failure pattern repeatedly along Flagler Drive, El Cid, and the North End: lower panel rust at the stile joints, roller brackets pulling through corroded aluminum, and top panel stress cracks where the strut was undersized for the opening. None of these are trivial on a 16-foot wide opening that faces the Intracoastal.
Which Therma-Tru Models This Applies To
Therma-Tru’s impact garage door line covers three series you will find in Palm Beach homes: the Classic-Craft steel back, the Fiber-Classic composite, and the Smooth-Star impact line. The part mismatch we see most often comes from measuring only the panel thickness and not the end stile profile. Therma-Tru uses a roll-formed stile on the Smooth-Star that does not interchange with the extruded stile on Fiber-Classic doors, even when both measure 2 inches thick. The label you want is on the top inside edge of the door, facing the opener rail. It carries the series code and a five-digit date stamp. If the label is gone, measure the distance between hinge centers on the top panel. On Therma-Tru, that measurement is 18 inches on 6-panel doors built after 2015 and 21 inches on earlier production. We can confirm the match from photos in about ten minutes.
For Therma-Tru specifically, the OEM-versus-aftermarket decision is not a straight price call. OEM bottom weather seals from Therma-Tru are cut to a profile that aftermarket universal seals rarely match, and in a hard Palm Beach rain, that half-inch mismatch at the corner lets water in. Aftermarket rollers and hinge carriers are generally fine if they are galvanized or stainless, never powder-coated steel, which the salt air in coastal Palm Beach runs through in three to four years.
Signs Your Therma-Tru Impact Garage Door Is Failing
- The door binds or jumps on one side. Almost always a roller bracket pulling away from a corroded stile, or a roller bearing gone flat. On impact doors near salt water, the bracket-to-panel connection fails before the roller itself.
- Bottom panel delamination or rust staining at the rail. Water wicks into the stile joint at the bottom rail and sits there. On steel-back Therma-Tru panels, this is the first place you will see paint blistering or a soft spot when you press on it.
- Light visible through the top panel when the door is closed. The top panel takes the most flex when the opener pulls, and on older Therma-Tru doors without a full-width strut, the panel cracks horizontally. That crack is also a wind-load failure waiting to happen.
- The door settles or drops when the opener disengages. Spring fatigue or a stretched cable pair. Impact doors are heavier than standard doors, and the springs on a Therma-Tru that has cycled daily since 2015 are at the end of their life by now.
- Missile-rated weatherstrip pulling away at the jambs. Palm Beach sun breaks down the vinyl in three to five seasons. Once the weatherstrip curls, driving rain gets behind the track, and the track hardware corrodes from the inside.
Replacement Cost & What’s Included
In Palm Beach, a full Therma-Tru impact garage door replacement runs $1,850 to $4,200 installed. The spread comes mostly from panel material: Smooth-Star steel-back starts around $1,850 for a 16×7, while Fiber-Classic composite runs $2,600 to $3,400, and a 16×8 door pushes the top of the range. A single replacement panel, when the damage is localized, typically runs $450 to $800 installed with the color match. Roller and hinge carrier rebuilds run $120 to $300 depending on how much of the mounting hardware has rusted out.
Our quote is line by line: the door or panel, the hardware, the labor, and the haul-away. We write it before we touch the opening, and the price does not change unless we find structural rot in the jamb, which we will show you before we do any work on it. Every job includes both manufacturer warranty layers registered in writing before we leave, per The Keystone Standard, plus our Done Right Promise. If it is not right, we make it right: no paperwork, no argument.
DIY or Call Us?
Flat spots on the track, minor hinge noise, and visible weatherstrip damage are worth checking yourself, and you can send us photos before we schedule anything. What we would not touch on a Therma-Tru impact door without training: springs, cable pairs, and anything connected to the lift system. Torsion springs on an impact-rated 16-foot door store enough energy to break bone, and the cable on a Therm-Tru runs under constant tension even when the opener is lifted and neutral. Dale Kessler has said it the same way for years: if the frame is right and the glass is rated, the rest is just following through. If the spring is off, the job is not a weekend project. Call (850) 801-5596 and we will handle it properly.
FAQs
A Therma-Tru impact garage door in Palm Beach typically lasts 15 to 20 years on the panels and 7 to 10 years on the hardware, with coastal homes near the Intracoastal seeing shorter hardware life from salt air. Call (850) 801-5596 if your door is past year ten and showing rust or delamination, and we will tell you honestly whether it needs a rebuild or a replacement.
Small dents and scratches on steel-back panels can often be repaired and refinished. Delamination, rust-through at the stile, or any crack that penetrates the panel means replacement, because the door loses its wind-load rating once the skin is compromised. Send us a photo or call (850) 801-5596 for a straight answer.
A standard Therma-Tru impact door swap in Palm Beach takes one full day for removal and installation, including haul-away and warranty registration. Panel-only replacements run three to four hours. We schedule a date and a morning window, and we are there when we say.
We stock Therma-Tru-compatible rollers, hinge carriers, bottom seals, and struts on the truck. Full replacement doors and color-matched panels are ordered to your exact series and size, which typically takes three to seven business days, and we handle the ordering. For everything else, including PGT, CGI, and CWS parts, call (850) 801-5596 and we will tell you what is on the shelf.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Palm Beach and nearby areas.
Six Reasons Homeowners Choose TruePane Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.



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