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AfterTherma-Tru Roof Replacement & Installation in South Miami: What to Know First
Therma-Tru roof replacement and installation in South Miami typically runs $8,500 to $22,000 depending on roof size, material choice, and structural condition, with most jobs completed in 3 to 7 working days once materials land. We’re an independent Therma-Tru service provider, which means we work on homes that already have Therma-Tru entry systems, patio doors, and exterior doors that need to be properly flashed, sealed, and integrated when a new roof goes on. This page is for South Miami homeowners who own Therma-Tru products and want a roof crew that understands how those specific door and window systems interact with roofing, flashing, and South Florida weather. Call (850) 930-1813 to talk through your roof and your Therma-Tru doors with someone who knows both.
How Therma-Tru Products Fail - and How We Fix Them
Therma-Tru doesn’t make roofing materials. They make fiberglass and steel entry doors, patio door systems, and door frames. So when we talk about Therma-Tru and roof replacement in the same breath, we’re talking about the intersection where roofing meets the door system. That intersection is where South Miami homes lose the most money in water damage, and it’s where we spend the most time on a roof job. Here are the failure patterns we see on Therma-Tru products when roofs get replaced by crews who don’t understand door integration:
- Therma-Tru Classic-Craft and Fiber-Classic head flashing failure. Most roofers flash to the old door frame, not the new roof deck. On Therma-Tru fiberglass doors, the head trim and brickmould sit tight against the sheathing. If the new roof’s drip edge doesn’t extend past the door’s top trim, water runs behind the brickmould and rots the rough opening. We extend drip edge, add a proper Z-flashing, and re-seal the head with a polyurethane sealant rated for our humidity. This is the number one call we get after a “budget” roof replacement.
- Therma-Tru Slim-Line and patio door threshold rot from re-roofing debris. A roof tear-off in South Miami sends thousands of nails, old shingle tabs, and tar paper scraps down the roof slope. If the crew doesn’t protect the patio door threshold, that debris scratches the finish and traps moisture against the aluminum sill. Therma-Tru thresholds are tough, but they aren’t nail-proof. We cover every door opening before tear-off, and we inspect thresholds after cleanup. If a threshold is compromised, we replace it with a Therma-Tru-compatible sill before it wicks water into your subfloor.
- Therma-Tru Tru-Defense door slab warping from trapped roof heat. New roofs, especially darker shingles or standing seam metal, reflect less heat into the attic. That heat pushes down through the wall cavity and sits against the interior side of your front door. Fiberglass doors handle this better than steel, but both can warp if the roof ventilation wasn’t recalculated after the roof material changed. We check attic ventilation on every roof replacement and adjust soffit or ridge vents so your Therma-Tru door isn’t baking from the inside.
- Therma-Tru frame shrinkage around a new roof’s drip line. South Miami’s wet season saturates the soil around your foundation. A new roof changes how water sheets off the house, and if the new overhang isn’t matched to your Therma-Tru door’s existing frame overhang, runoff can pool at the door corners. We measure every door’s projection before we order roofing materials, and we build the new eave to match. This is the kind of detail a roof-only company skips because they don’t look at doors.
- Therma-Tru weatherstrip degradation from roofing dust. Roof tear-off creates a fine dust that gets into everything, including the compression weatherstrip on your Therma-Tru door. We’ve seen doors that sealed perfectly before a roof replacement start whistling two weeks after. The fix is simple: we pull the old weatherstrip, clean the kerf, and install fresh Therma-Tru weatherstrip at the end of every roof job. We don’t charge extra for it. It’s part of doing the job right.
Our Therma-Tru Roof Replacement & Installation Process
Every roof replacement in South Miami that involves Therma-Tru doors follows the same six-step process. It’s not fancy, but it’s thorough, and it keeps water where it belongs: outside.
- 1
Call and walkthrough. You call (850) 930-1813 and one of us answers. We schedule a time to walk the roof, the attic, and every exterior door on the house. We measure door projections, check flashing, and look at how the existing roof ties into the Therma-Tru frames. This takes about an hour, and there’s no trip charge in our home county.
- 2
Written estimate with line items. Ed reviews the measurements and puts together a written estimate that breaks out roofing materials, labor, door flashing work, and any Therma-Tru repairs we recommend. No vague “door work as needed” line. You’ll see exactly what every dollar covers.
- 3
Material ordering and door protection plan. We order the roofing materials and set a start date. Before tear-off, every Therma-Tru door gets covered from threshold to header. We also take photos of every door’s condition so there’s a record of what it looked like before we started.
- 4
Tear-off and deck inspection. We strip the old roof, inspect the decking for rot or termite damage, and replace any bad sheathing. While the roof is open, we check the rough openings around your Therma-Tru frames for hidden water damage. If we find rot, we show you before we fix it. No surprise invoices.
- 5
Roof installation with door integration. We install the new roof, extending drip edge and flashing at every door and window transition. We re-seal the Therma-Tru head trim, check thresholds, and make sure the new eave projects correctly over the doors. If weatherstrip got fouled by dust, we replace it now.
- 6
Cleanup, inspection, and the Done Right Promise. We run a magnet over the yard for nails, blow out the gutters, and walk the property with you. If anything isn’t right, we fix it. Then we hand you the warranty paperwork and Ed’s direct line. If it’s not done right, we make it right. That’s the promise, and it doesn’t expire.
What Therma-Tru Roof Replacement & Installation Costs in South Miami
Here’s what we’re seeing for roof replacement work on South Miami homes with Therma-Tru door systems, as of early 2026. These are real ranges from jobs we’ve quoted, not national averages pulled from a database.
| Scenario | Typical Range | Notes |
|---|---|---|
| Shingle roof replacement, 1,800 sq ft home, standard Therma-Tru entry door flashing | $8,500 - $12,000 | Includes door head flashing re-seal, drip edge, weatherstrip replacement |
| Tile roof replacement, 1,800 sq ft home, Therma-Tru patio door threshold replacement | $16,000 - $22,000 | Tile is heavier, takes longer, and patio door threshold work adds $600 - $1,200 |
| Metal roof installation, 1,800 sq ft home, multiple Therma-Tru door integrations | $14,000 - $19,000 | Standing seam includes custom flashing at every door penetration |
| Therma-Tru door frame repair discovered during roof tear-off | $300 - $1,800 | Depends on rot extent; we show you photos before we touch it |
What moves the price in South Miami: roof pitch, number of valleys, tile vs shingle vs metal, how many Therma-Tru doors need re-flashing, whether the decking has rot, and whether you need upgraded attic ventilation. The best way to know your number is to call (850) 930-1813 and have Ed walk the roof. The estimate is free, and the price we quote is the price you pay. No change orders, no “we found something” upcharges.
Why South Miami Homeowners Call Winslow Windows & Doors for Therma-Tru Work
Ed Winslow grew up in the Sunset neighborhood of South Miami, close enough to Dante Fascell Park that he probably should’ve been home doing homework. He learned construction at Miami Dade College, where they taught him to read blueprints and understand load paths before he ever picked up a nail gun. That education is why he looks at a Therma-Tru door and sees the wall assembly behind it, not just a slab in a hole. When we replace a roof on a home with Therma-Tru doors in South Miami, Ed’s the one doing the door-to-roof integration math. My name’s on the truck - if the work isn’t right, neither am I.
We’ve been doing this in South Miami since 2011. We’re locally owned, our address and license number are published, and a live person answers the phone 24 hours a day, seven days a week. Every technician who shows up at your door is background-checked and in uniform. And because we’re authorized installers for PGT, CGI, CWS, and ES Windows alongside Therma-Tru, we understand how impact door and window systems need to be flashed and sealed when a new roof goes on. A lot of roofers in South Miami have never touched a Therma-Tru frame. We have, hundreds of times. The Done Right Promise stands behind every job, which means if we miss something, we come back. That’s a hundred years of accountability, and we’re serious about it.
FAQs
Replacing your roof does not automatically void a Therma-Tru door warranty, but improper flashing or installation damage during the roof job can. If a roofer damages your door slab, frame, or threshold, Therma-Tru’s warranty typically won’t cover the repair because it’s not a manufacturing defect. That’s why we document every Therma-Tru door’s condition before tear-off, protect openings during the job, and re-flash everything to Therma-Tru-compatible standards. We’re an independent Therma-Tru service provider, not a Therma-Tru authorized dealer, so we’re careful to preserve your existing warranty coverage by not cutting corners on integration work. Call (850) 930-1813 if you’re planning a roof replacement and want your Therma-Tru doors inspected first.
Yes, and it’s often the smartest time to do it. When the roof is off and the rough opening is exposed, we can see exactly what’s happening behind the door frame: rot, termite damage, failed flashing, whatever’s there. Replacing a Therma-Tru door while the roof is open lets us flash and seal the new unit from the outside before the new roof goes on, which is a better installation than retrofitting later. We handle the door replacement as a separate line item on the same estimate, so you see both scopes clearly. If you’re thinking about a new Therma-Tru entry door or patio door, mention it when you call for the roof estimate.
A standard shingle roof replacement on a South Miami home with one or two Therma-Tru doors takes 3 to 5 working days. Tile and metal roofs run 5 to 7 working days. Weather plays a role, especially during the wet season when afternoon thunderstorms shut down tear-off work without warning. We factor that into our scheduling and give you a realistic window before we start. The Therma-Tru door integration work we do adds a few hours to each door, not days. For a firm timeline on your specific roof, call (850) 930-1813 and we’ll walk it with you.
We use OEM Therma-Tru parts whenever they’re available and the right call for the job: replacement thresholds, weatherstrip, brickmould, and door slabs when a full replacement is warranted. For flashing and sealant work around the door frame, we use commercial-grade materials that meet or exceed what the original installation used, because roof-to-door flashing isn’t a Therma-Tru manufactured part. The honest answer is that some aftermarket weatherstrip products hold up fine in South Miami’s humidity, but if it’s a structural part, we order from Therma-Tru. We’ll show you the part numbers on the estimate and explain why we chose what we chose. Call (850) 930-1813 for a straight answer on your specific doors.
If the door slab is sound and the damage is limited to flashing, weatherstrip, or a threshold, repair makes more financial sense and we’ll tell you that. If water has rotted the rough opening or the frame is compromised, putting a patch on it only hides the problem until it gets worse. In South Miami, with our rain and humidity, a rotted door frame behind a brand new roof is a mold problem waiting to happen. We’ll show you what we find when the roof is open, give you both options with honest numbers, and recommend the one we’d choose for our own home. The choice is always yours, and the estimate for either path is free.
Get Your Free Therma-Tru Roof Replacement Estimate in South Miami
If you own a home in South Miami with Therma-Tru doors and you need a new roof, you don’t have to choose between a roofer who ignores your doors and a door company that doesn’t do roofs. We do both, we’ve done it since 2011, and we’ll show you exactly what it costs before you commit. Call (850) 930-1813 to schedule your free estimate. A live person answers, Ed walks the property, and the price on the written estimate is the price you pay. The one down the road.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving South Miami 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.