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Therma-Tru Roof Repair in Fort Lauderdale: What to Know First
Therma-Tru roof repair in Fort Lauderdale typically runs between $350 and $1,800 depending on whether we’re addressing a failed seal around a roof-adjacent entry system, repairing water intrusion around a Therma-Tru door frame that’s compromised the roof decking above it, or replacing rotted substrate beneath an exterior door assembly. Most Therma-Tru-related roof repairs take one to two days once we’ve completed the diagnostic. We give you a written, line-item price before any work starts, and the number on that sheet is the number you pay.
This page is for Fort Lauderdale homeowners who own Therma-Tru entry doors, patio doors, or sidelight assemblies and have discovered roof leaks, water staining, or rot around those openings. As an independent Therma-Tru service provider, we repair the roof-adjacent failures that Therma-Tru’s own warranty doesn’t cover, and we do it with the same accountability we’ve brought to South Florida homes since 2011. If you’re looking at a water stain right now, call (904) 913-5886 and Ed or a member of our team will walk you through what you’re seeing.
How Therma-Tru Products Fail - and How We Fix Them
Therma-Tru builds a solid door, but in Fort Lauderdale’s climate, the failure usually isn’t the door itself. It’s what the weather does to the roof framing, flashing, and sheathing around the rough opening. Here are the five failure patterns we see most often on Therma-Tru installations in this area:
- Rotted roof sheathing above the door header. Therma-Tru’s Classic-Craft and Smooth-Star lines use fiberglass skins that resist rot well, but the wood framing above them doesn’t. When flashing at the roof-to-wall transition fails, water runs behind the siding and pools on the header above the door. By the time a homeowner notices a soft spot on the interior drywall, we’re usually replacing 4 to 6 feet of roof sheathing and the header itself. We pull the door, fix the framing, re-flash, and reset the same Therma-Tru unit if it’s still sound.
- Failed drip cap above sidelight assemblies. Therma-Tru’s Fiber-Classic and Decorative Glass sidelights are beautiful, but the narrow mullions between door and sidelight create a half-dozen caulk joints that Fort Lauderdale’s afternoon thunderstorms test daily. When the drip cap above a sidelight is missing or undersized, water wicks into the roof decking before it ever reaches the door. We replace the cap with a properly sized, properly lapped unit and re-seal every joint with commercial-grade sealant rated for our UV index.
One specific thing you won’t find on Therma-Tru’s website: the factory-installed top cap on many entry systems is screwed directly to the rough opening with no backer rod, and in Fort Lauderdale’s summer heat, the metal cap expands and contracts enough to pull those screws loose. We see this on the Classic-Craft line regularly. The fix is a re-bedding of the cap in a full bed of sealant plus mechanical fasteners at correct spacing, which is different from the factory installation method.
- Leaking roof-to-wall junction at the door’s exterior corner. When a Therma-Tru entry doors sits near a roof valley or under an eave with poor overhang, water sheets down the wall and finds the top outside corner of the door frame. Over time, that corner becomes the path of least resistance into the house. We correct the roof drainage, add or extend kickout flashing where needed, and only then re-seal the door. Sealing the door without fixing the drainage means you’ll call us again next rainy season.
- Threshold and subfloor rot from storm-driven rain. Fort Lauderdale gets more than 60 inches of rain a year, and a surprising amount of it blows sideways during summer squalls. Therma-Tru’s adjustable thresholds are well-built, but no threshold survives prolonged water pooling against it. When water gets past the threshold, it rots the subfloor directly beneath the door, which is often the same plywood that extends out to form the roof deck over a porch or entry alcove. We cut out the rotted section, install new plywood and proper underlayment, re-set the threshold with full-length sealant, and verify drainage away from the door.
- Cracked exterior trim allowing water behind the Therma-Tru frame. Therma-Tru’s doors are low-maintenance, but the trim surrounding them often isn’t. In Fort Lauderdale’s salt air and sun, wood trim cracks and paint fails within a few years. Once the trim cracks, the hidden seal behind it fails too. We remove the old trim, inspect the rough opening for hidden rot, replace any damage, install new composite or PVC trim that won’t rot, and re-seal the entire assembly. Composite trim here isn’t an upgrade; it’s the only choice that makes sense within three miles of the beach.
Our Therma-Tru Roof Repair Process
When you call (904) 913-5886 about a Therma-Tru roof concern, here’s how the job goes from start to finish:
- 1
Diagnostic walk-through. We inspect the Therma-Tru unit, the surrounding flashing, the roof deck above and beside the opening, and the interior for moisture. We use a moisture meter to find water you can’t see yet. This is a real inspection, not a quick glance from the driveway.
- 2
Written findings and a straight answer. We tell you what’s wrong, what caused it, and what it costs to fix. If the door itself is fine and the problem is purely roof-related, we say so. If the door needs to be reset, we say so. No upsell, no padding.
- 3
Parts decision. For Therma-Tru components like weatherstripping, sweeps, or glass, we use OEM parts that match the original specification. For flashing, fasteners, trim, and underlayment, we use commercial-grade materials chosen for Fort Lauderdale’s climate. We’ll explain exactly what we’re using and why before work starts.
- 4
The repair itself. Our background-checked, uniformed technicians do the structural work first (roof sheathing, header, flashing, drainage), then seal and re-set the Therma-Tru unit to original factory clearances. Everything is done to Florida building code, and we pull permits where required.
- 5
Water test and walk-through. After the repair, we run water on the area to confirm it’s actually fixed. Then we walk you around the work, show you what we did, and answer every question.
- 6
The Done Right Promise. Every job carries our 36500-Day Done Right Promise. If it’s not done right, we make it right, period.
What Therma-Tru Roof Repair Costs in Fort Lauderdale
Here are the ranges we most often quote for Therma-Tru-related roof work in Fort Lauderdale:
- Re-seal and re-flash around a Therma-Tru unit: $350-$700
- Replace rotted roof sheathing above a door header: $800-$1,400
- Remove, re-set, and re-flash a Therma-Tru door with new trim: $900-$1,600
- Full rough-opening rebuild (header, sheathing, door reset, new trim, full seal): $1,500-$2,800
What moves the price: how much wood is rotted once we open the wall or ceiling, whether the Therma-Tru unit can be salvaged or needs replacement, and whether permits and structural work are required. We give you a written line-item quote before any work begins, and we honor that price. No change orders at the end, no “while we’re in there” surprises. You’ll also get $40 off any repair over $200, and seniors and veterans always save 10%. Call us for your free estimate. The only way to know exactly what your job costs is to have us look at it, and estimates don’t cost you a dime.
Why Fort Lauderdale Homeowners Call Winslow Windows & Doors for Therma-Tru Work
Ed Winslow started this company in 2011, and he still answers the phone. That’s not a marketing line; it’s an operating principle. You call us at 2 a.m. with water coming through the ceiling after a storm, and you get a real person, not a voicemail system. Every technician who arrives at your Fort Lauderdale home is background-checked and in uniform, so you know exactly who’s at your door before the truck pulls up.
We’ve been an authorized installer for Therma-Tru, PGT, CGI, CWS, and ES Windows for years, which means we know these products from the inside out. We’re the one down the road, not a national chain with a call center. Our address is published, our license number is public, and Ed’s name is on the door, literally. That means it gets done right. If you own a Therma-Tru entry system and you’ve got a roof leak, call (904) 913-5886. We’ll come look, tell you the truth, and hand you a written price. The estimate is free.
FAQs
No. Structural and roof repairs around the door opening are not part of Therma-Tru’s warranty coverage, and a qualified independent Therma-Tru service provider like us can perform those repairs without voiding the door’s original warranty. Therma-Tru’s warranty covers the door slab, frame, and components, not the roof, flashing, or building envelope around it. Call (904) 913-5886 if you want us to look at your specific situation before you call Therma-Tru.
Yes, when the failed component is part of the Therma-Tru unit itself, like weatherstripping, sweeps, hinges, or glass, we source OEM parts that match your door’s original specification. For everything else (flashing, trim, sealants, roof decking, fasteners), we use materials chosen specifically for Fort Lauderdale’s heat, humidity, and storm exposure. Call (904) 913-5886 and we’ll tell you exactly which parts your job needs.
Most leak diagnoses happen within one to two business days of your call, and straightforward re-seal or re-flash jobs are usually finished the same day we start. If we find structural rot that requires opening a wall or ceiling, the repair may take two to three days including permit approval and drying time. Every job gets a clear timeline in writing before we start, and we stick to it.
In most cases, repair is the right call. Therma-Tru’s fiberglass door slabs are highly rot resistant, and we can often save the unit even when the surrounding framing and sheathing need significant replacement. We’ll tell you honestly if the door itself is damaged beyond practical repair. If replacement makes sense, we’ll quote you an installed Therma-Tru replacement that meets current code, and you can make the call with real numbers in hand.
A typical re-flash and re-seal around a Therma-Tru door in Fort Lauderdale runs $350 to $700, depending on the condition of the existing flashing, whether trim removal is needed, and the accessibility of the roof-to-wall junction. You’ll get a written, line-item quote before we start, and the price on that sheet is the price you pay. Call (904) 913-5886 for an exact quote, estimates are free.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Fort Lauderdale and nearby areas.
Six Reasons Homeowners Choose Winslow 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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