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Therma-Tru Roof Replacement & Installation in Naples: What to Know First
We install replacement roofing on Naples homes that already carry Therma-Tru doors and windows, and we do it with a level of care that respects both the roof and the openings underneath it. Most Therma-Tru replacement roofs in Naples go from tear-off to final inspection in three to five working days, depending on the roof’s pitch and the condition of the flashing around existing door and window frames. Pricing is honest, written, and line-itemed before we start, so you know exactly what you’re paying for and why.
This page is for Naples homeowners who want a roof replacement done by people who understand how a roof ties into the Therma-Tru products already on the house. If you own a home in Naples with Therma-Tru entry doors, patio doors, or sidelights, and the roof above them is failing, call (239) 899-6411. We’ll answer, talk through what you’re seeing, and set a time to look at it in person.
Key takeaways:
- We’re an independent Therma-Tru service provider, meaning we work on homes with Therma-Tru products but aren’t owned by or authorized by the manufacturer.
- Roof replacement around existing Therma-Tru door and window frames requires specific flashing methods to protect the openings from water intrusion.
- Every job is backed by our 36500-Day Done Right Promise. If it’s not done right, we make it right.
- Free estimates in Naples. Call (239) 899-6411.
How Therma-Tru Products Fail, and How We Fix Them
Therma-Tru builds solid doors and windows, but they live under a roof, and when the roof starts going, the products below it feel the consequences. Here’s what we typically see on Naples homes with aging roofs over Therma-Tru openings:
- Flashing separation at Classic-Craft entry door heads. Therma-Tru’s Classic-Craft line has a fiberglass skin over a solid core, which resists rot far better than wood. But the factory flashing detail assumes a clean, flat roof transition above the door. On older Naples homes with tile roofs, the step flashing at the door head often pulls away as the roof deck settles, and water tracks down behind the brickmold. We re-flash the roof-to-door transition before laying new roofing, because new shingles over old flashing is a leak waiting to happen.
- Hidden water damage behind Smooth-Star sidelight frames. The Smooth-Star series uses composite frames that don’t rot, which is good. What homeowners don’t see is the sheathing behind those frames. When a roof leak runs inside the wall cavity above a sidelight, the water pools on top of the frame and wicks into the rough opening. By the time you see staining on the drywall inside, the sheathing may already be soft. Our replacement roofing process includes pulling the trim on affected sidelights, inspecting the rough opening, and replacing any damaged sheathing before we close the roof.
- Cracked stucco above patio door headers from roof movement. Therma-Tru sliding patio doors in Naples sit under some of the heaviest roofing systems in the region, especially tile and concrete. When the roof deck flexes or the underlayment fails, the movement telegraphs down into the stucco above the door header, causing hairline cracks. New roofing won’t fix the cosmetic issue, but our team assesses the header load path and installs reinforcing flashing that stops the movement from traveling into the door frame.
- Threshold rot on door sills exposed to roof runoff. Therma-Tru’s rot-proof composite doors don’t rot, but the sub-sill underneath can rot if roof runoff concentrates at the entry. This happens frequently on Naples ranch homes where the original gutter system was undersized or never replaced after the last roof. During a roof replacement, we check the drainage pattern over every exterior door and recommend gutter adjustments where needed. A new roof that dumps water on a Therma-Tru threshold is a new problem, not a solved one.
- Therma-Tru warranty claims denied because of improper roof flashing. Therma-Tru’s finish and component warranties cover manufacturing defects, not installation or roofing failures. When a roof leak causes finish damage or warping on a Therma-Tru door, the manufacturer typically denies the claim because the root cause was the roof. We document everything during the roof replacement, photograph the flashing transitions, and provide you with a written record that supports any future door warranty claims you may need to file.
Our Therma-Tru Roof Replacement & Installation Process
Here’s how a typical Therma-Tru roof replacement goes from first call to final walkthrough:
- 1
Call and conversation. You call (239) 899-6411, a real person picks up, and we talk through what’s happening on your roof and around your Therma-Tru openings. We schedule a free in-person estimate at a time that works for you.
- 2
On-site roof and opening assessment. Ed or a senior crew lead walks the roof, checks the flashing at every door and window, and looks for signs of water intrusion around Therma-Tru frames. We take photos and measurements.
- 3
Written line-item estimate. You receive a written quote that lists every material, every labor step, and the total price. No allowances, no open-ended line items, no surprises later.
- 4
Parts and materials decision. For roofing materials, we discuss shingle, tile, or metal options that suit your home’s structure and Naples wind codes. For any Therma-Tru components that need repair or replacement, we walk through OEM versus quality aftermarket parts and give you our honest recommendation.
- 5
Roof tear-off and flashing work. We remove the old roof, repair or replace decking as needed, and install new flashing at every Therma-Tru door, sidelight, and window transition before laying the new roofing.
- 6
Final inspection and cleanup. We walk the roof with you, show you the flashing details, verify that every opening is sealed correctly, and clean the site down to the nails. Then we file your warranty documentation and leave the property better than we found it.
What Therma-Tru Roof Replacement & Installation Costs in Naples
Roof replacement pricing in Naples depends on the material you choose, the square footage, and how much flashing work your Therma-Tru openings require. Here are the ranges we typically see:
- Asphalt shingle roof replacement with standard flashing: $8,500 to $14,500 for a typical 1,800 to 2,400 square foot single-story Naples home.
- Tile roof replacement on a home with multiple Therma-Tru door openings: $22,000 to $38,000, with the higher end driven by custom flashing work and deck reinforcement.
- Metal roof installation: $18,000 to $32,000, depending on the panel profile and the complexity of transitions around dormers and door headers.
- Flashing-only repair at a single Therma-Tru door or sidelight: $400 to $900 if the roof itself is still sound.
What moves the price most is the condition of the decking and the number of doors, windows, and skylights that need re-flashing. Multiple Therma-Tru openings mean more time and more material, but skimping on flashing is the single biggest cause of leaks after a new roof goes on. Call (239) 899-6411 for an exact quote. Estimates are free, and the number you see on the estimate is the number you pay.
Why Naples Homeowners Call Winslow Windows & Doors for Therma-Tru Work
Ed Winslow grew up in Miami, learned construction at Miami Dade College, and has been working on Southwest Florida homes for decades. His name is on the truck, and that means every roof we install over a Therma-Tru door carries his standard. We founded Winslow Windows & Doors in 2011, and since then we’ve installed roofs, windows, and doors on everything from quiet ranch homes to high-rises along Vanderbilt Beach Road. Ed still shows up to every job site at least once, not to supervise, but to look at the work with his own eyes. My name’s on the truck. That means I stand behind every frame we set.
We’re also an authorized installer for PGT, CGI, CWS, and ES Windows, so if your Therma-Tru door or window needs replacement as part of the roofing project, we can coordinate both scopes without bringing in another contractor. No ticket numbers, no call centers. You call, we answer, and the person who quoted your roof is the same person who stands on it when it’s done. Every job is backed by our 36500-Day Done Right Promise. If it’s not done right, we make it right, period.
FAQs
No. Therma-Tru’s product warranty covers manufacturing defects in the door or window itself, independent of any roofing work. In fact, a properly flashed new roof protects your Therma-Tru products from water damage that the door warranty would not cover. We document all flashing work so you have a record if you ever need to file a finish or component claim.
Most Naples roof replacements run three to five working days. Homes with multiple Therma-Tru openings typically add half a day to a full day for careful flashing work around each frame. We’ll give you a firm timeline in your written estimate before any work begins. Call (239) 899-6411 to schedule a free estimate and get a specific timeline for your home.
Yes. If a Therma-Tru door frame or brickmold is damaged and needs replacement, we source components that match the existing color and finish. For aftermarket parts, we match the factory color codes, and for OEM parts we order directly from Therma-Tru’s distribution network. We’ll show you the options and costs before we order anything.
It depends on the condition of the doors. If your Therma-Tru doors are sound and the roofline flashing is intact, there’s no reason to replace them during a roof job. If water intrusion from the old roof already damaged the frames or rough openings, combining the work saves you money on mobilization and prevents you from having to redo flashing on a brand-new roof. We’ll give you an honest recommendation either way.
Yes. Every roof replacement we do in Naples is fully permitted, inspected, and documented. We handle the permit application, schedule the inspections, and provide you with the final sign-off paperwork. Call (239) 899-6411 if you want to talk through your roofing project before you commit to anything.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Naples 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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