Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why Miami Homeowners Choose Therma-Tru Construction
We provide independent Miami Therma Tru service and repair, specializing in fiberglass and steel entry systems that get punished by salt air, 90% humidity, and hurricane-driven rain. Penhallow Remodeling Miami services Smooth-Star, Classic-Craft, Pulse Series, and Weather-Shield Steel door lines from Coconut Grove to Killian with OEM-compatible parts and real-world fixes that survive a Miami wet season. We’re not factory-authorized by Therma-Tru, and we tell every customer that straight. What we offer instead is something factory installers often don’t: a written price before work starts, a 365-Day Done Right Promise in writing, and a crew that actually comes back if something fails. Call (850) 988-7559 for a free estimate on your Therma-Tru door, frame, or threshold.
Why Trust Penhallow Remodeling Miami for Your Therma-Tru Construction?
Trevor Nash has spent close to three decades swinging a hammer and managing crews, and he learned early that doors fail in predictable ways when you install them in a city that gets 60-plus inches of rain a year. Our technicians know Therma-Tru product anatomy: how the fiberglass skin bonds to the slab, where corner seal pads actually sit, why an adjustable sill needs shimming on a settling Miami slab. We’ve pulled enough rotted sill pans out of 1970s CBS homes in the Killian area to know what a sprinkler overspray problem looks like before we even unscrew the threshold. Every tech arrives background-checked and in uniform. You know exactly who’s walking in.
We install and repair Therma-Tru as an independent General Contractor in Miami. That matters in one specific way: we answer to you, not to a manufacturer’s authorized-dealer program. If a repair is the honest call, we say so. If the slab is delaminated and patchwork won’t survive August humidity, we quote replacement and explain why. Trevor’s rule on the jobsite is simple: give you a number first, then pick up the tools.
Styles & brands we work with
Common Therma-Tru Construction Problems We Fix in Miami
Miami’s climate finds the weak points in any entry door. Here’s what we see most on Therma-Tru installations across the city:
- Fiberglass skin blush or hairline cracks. Smooth-Star and Classic-Craft fiberglass doors get pressure-washed by well-meaning homeowners or maintenance crews using too-high PSI. The gel coat blushes, then micro-cracks form. Miami’s UV exposure accelerates it. We can often restore the finish if the structural skin is intact; if it’s through-cracked, we’ll tell you repair isn’t the smart money.
- Bottom sweep rot and sill pan corrosion on steel frames. Weather-Shield Steel doors in Miami take direct hits from salt-driven rain off the Atlantic. The bottom sweep wears, water wicks up, and the steel jamb rusts from the inside out. By the time you see rust staining, the sill pan underneath is usually shot too.
- Warped threshold from unshimmed installs on settling slabs. Miami sits on porous limestone. Slabs shift. If the original installer set the threshold directly on concrete without composite shims, the threshold bows within a couple of wet-dry cycles. The door starts catching on the latch side, then won’t close without a hip check.
- Sticking or misaligned slab after hurricane-driven moisture swells the frame. Fiberglass slabs are dimensionally stable, but the rough opening around them isn’t. When humidity spikes after a storm, the wood bucks and framing absorb moisture and move. A door that closed perfectly in March binds in September. Adjustable sills and proper flashing mitigate this; most installs we see in older Miami homes have neither.
- Improper flashing around impact-rated door units. Miami-Dade wind-load codes require serious anchoring, but flashing detail is where we find corners cut. Caulk hides it for a season. Then the first real storm drives water behind the jamb and into the wall cavity. By the time you smell must, the frame’s been wet for months.
Therma-Tru Parts & Our Repair-vs-Replace Approach
We default to genuine Therma-Tru OEM weatherstripping, corner seal pads, and adjustable sills whenever the frame is structurally sound, because those parts are engineered to the exact profile of your door. For out-of-production trims and older series hardware, we use measured marine-grade aftermarket sweeps, ideally with drip caps, so water sheds instead of collecting. Neither is a compromise when matched correctly. The honest line we hold: if the fiberglass slab is delaminated, or the steel jamb is rusted through, we quote replacement. Patchwork does not survive a Miami wet season, and we won’t sell a repair we know will fail by October. Call (850) 988-7559 if you’re not sure which side of that line your door falls on. Estimates are free.
Our Therma-Tru Service Process – Step by Step
- 1
Diagnosis. We inspect the slab, frame, sill, weatherstripping, and flashing, and we check for moisture intrusion with a meter. On a recent 1970s ranch near Killian, our tech found a Classic-Craft fiberglass door with a rotted sill pan and a rusted steel jamb from years of sprinkler overspray. The homeowner thought the door had “settled.”
- 2
Repair or replacement quote. We hand you a written number before any work starts. You’ll see the line items: parts, labor, what’s OEM and what isn’t. The number on day one is the number on the invoice. That’s The Kingswell Way.
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The work itself. We pull the unit if needed, replace pans with composite sloped sills, re-hang slabs with stainless shims, and swap in OEM sweeps and corner pads. No shortcuts, no change orders hiding in the fine print.
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Test and verify. Every Therma-Tru door gets a hose test before we call it done. If water gets in, we find out on our watch, not yours.
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Written warranty. Every repair includes our 365-Day Done Right Promise in writing. If the fix fails inside a year, we come back at no charge. Free second visit, no service call fee, no re-inspection fee. That’s also The Kingswell Way.
See the difference
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AfterTherma-Tru Products We Service & Install in Miami
Our crews provide Therma-Tru Construction in Brownsville, FL and across South Florida, working the lineup that matters most here: Smooth-Star Fiberglass for its low-maintenance skin that handles Miami salt air better than most, Classic-Craft Fiberglass for homeowners who want real wood-grain depth without the rot risk, Pulse Series for the premium multi-point locking systems, and Weather-Shield Steel when budget or fire-rating drives the choice. We stock common OEM sweeps, corner pads, and adjustable sills locally, which means most repairs in Miami don’t wait on a freight truck from the Midwest. If you need impact-rated entry doors for a remodel or a replacement, we install those too, and we pull the permits and pass the inspections.
We Also Service These Brands
Therma-Tru is a big part of what we do, but we’re not a one-brand shop. We install and service KraftMaid cabinetry, Cambria and Silestone countertops, and Kohler fixtures across our kitchen and bath remodeling work. If your project touches several product lines, one crew, one written price, one guarantee.
FAQs – Therma-Tru Construction Service in Miami
Can you match a Therma-Tru Classic-Craft fiberglass stain finish after a repair?
Matching a factory Classic-Craft stain is doable with the right kit and a tech who understands how the gel coat takes pigment. We can get very close on touch-ups around repaired corners or re-hung slabs, but if the original finish has years of UV fade, we’ll match to the current color, not the brochure photo. Exact factory-match from a can is not realistic, and we’ll tell you that before you pay for it. Call (850) 988-7559 and we’ll assess your specific finish.
Why does my Smooth-Star door bind only during Miami’s rainy season?
The fiberglass slab isn’t moving; the rough opening around it is. Miami’s humidity spikes after afternoon thunderstorms, and the wood framing behind your jamb absorbs moisture and swells. That closes the clearance around the slab and causes binding. It’s a flashing and sealing problem, not a door problem. We fix it by correcting the moisture path and, if needed, re-setting the frame with proper shims.
Is it worth repairing a rusted steel Therma-Tru threshold, or should I replace the door?
That depends on how far the rust has gone. If it’s surface rust on the threshold cap, we can replace the threshold and adjust the sweep, and you’ll get years more out of the door. If the steel jamb is rusted through or the sill pan underneath has rotted, patchwork won’t survive Miami’s wet season, and we’ll quote replacement. The honest call comes from poking at it with a screwdriver, not from a photo. Call (850) 988-7559 for an in-person assessment.
How can I tell if my Therma-Tru impact-rated door was installed wrong?
The tell is water where there shouldn’t be: staining at the bottom corners of the jamb, condensation between the glass layers, or a threshold that pools water after rain. Improperly flashed impact doors also let wind-driven rain behind the jamb during storms, which shows up as a wet wall or a musty smell weeks later. If you see any of that, get it inspected before the next hurricane season. Estimates are free.
Does your crew install Therma-Tru doors inside during a kitchen remodel, or do you sub-contract?
Our own crew does the work. We don’t hand your kitchen remodel or your entry door off to a sub. That means one team responsible for the whole job, one written price for the entire project, and one guarantee covering it all. If the door leaks after the kitchen’s done, you call us, not a guy we found on a jobsite.
How much does Therma-Tru construction cost in Miami?
Here’s what we typically see in the Miami market for the work we do around Therma-Tru doors:
| Service | Price Range |
|---|---|
| Therma-Tru door reframe / sill pan replacement | $944 – $2,360 |
| Kitchen Remodel (in which Therma-Tru entry/impact doors are commonly installed) | $16,520 – $53,100 |
The door reframe range covers sill pan replacement, threshold adjustment, and weatherstripping replacement on a structurally sound frame. Kitchen remodels swing based on layout, cabinet line, and countertop material, and the entry door is often part of that bigger project. Call (850) 988-7559 for a written, line-item estimate on your specific job. Free, no obligation.
Book Your Therma-Tru Service in Miami, FL
If your Therma-Tru door is sticking, leaking, or just showing its age after a few Miami summers, call (850) 988-7559 to schedule a free estimate. We’ll give you a written price before any work starts, and we’ll stand behind the repair with the 365-Day Done Right Promise. Trevor Nash and the Penhallow Remodeling Miami team serve homeowners across Miami, including Coconut Grove, Killian, Little Havana, and Allapattah.
Written by Trevor Nash, Owner at Penhallow Remodeling Miami, serving Miami since The Kingswell Way was established in 2004.
