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Therma-Tru Kitchen Remodeling: The Miami Owner’s Guide
Therma-Tru kitchen remodeling in Miami runs $16,520 to $53,100 for a full project, with door and entry system integration typically falling in the mid-range. We stock Therma-Tru-compatible components and can usually source matching trim, jamb extensions, and seal kits within 24 hours. Most Miami homeowners discover their Therma-Tru kitchen entry system needs attention when the door between garage and kitchen starts sticking after summer humidity cycles, or when the adjustable threshold no longer seals against water intrusion during our September storm season.
Which Therma-Tru Models This Applies To
Therma-Tru identifies its kitchen-adjacent entry systems through a stamped label on the hinge edge of the door slab, not the frame. The Classic-Craft, Smooth-Star, and Fiber-Classic series all use different jamb depths, 4-9/16 inch versus 6-9/16 inch, and mixing them during a kitchen remodel forces either wall reconstruction or custom build-out blocks. We see this mismatch most often in Coral Gables and Pinecrest homes where owners ordered a replacement door online without measuring the existing hinge mortise location.
The OEM Therma-Tru sill cap and adjustable threshold ship as a matched set, part numbers prefixed TS or SILL, and the aftermarket equivalent from Endura or M-D Building Products will fit but voids the factory warranty on the door slab itself. For kitchen entries that see daily traffic, we spec the OEM cap because the thermoplastic rubber seal compound holds up to Miami’s UV exposure longer than generic EPDM. If your door was manufactured before 2014, check for the older screw-slot threshold design, incompatible with the current snap-in replacement.
Signs Your Therma-Tru Kitchen Remodeling Is Failing

- Door sticks or binds seasonally. The composite jamb material in Therma-Tru frames expands and contracts with humidity. In Miami, we see binding peak in August when interior AC meets 85 percent exterior humidity; the jamb swells against the slab and shaves paint off the strike edge.
- Visible daylight under the threshold. The adjustable screw mechanism strips or the composite sill cap cracks. Water then tracks under the finish flooring, and we’ve pulled up LVT in Kendall kitchens where this went unaddressed for two seasons.
- Weatherstrip pulls away from the stop. Therma-Tru’s Q-Lon foam-filled vinyl gasket compresses permanently after about seven years of daily use. Once it loses memory, the seal gap lets garage fumes and pollen into the kitchen.
- Hinge screws loosen repeatedly. The MDF core in lower-tier Smooth-Star jambs crumbles around the screw threads. Tightening them strips the hole further; the door drops and drags the threshold.
- Finish peeling at the bottom rail. Water wicking up from an unsealed threshold edge breaks down the fiberglass skin. This is cosmetic until the substrate swells, then it’s a full slab replacement.
Before
AfterReplacement Cost & What’s Included
| Component | Price Range (Installed) |
|---|---|
| Full kitchen remodel with Therma-Tru entry integration | $16,520 - $53,100 |
| Therma-Tru door slab replacement (same opening) | $4,720 - $15,340 |
| Threshold/sill cap replacement only | $945 - $2,950 |
| Jamb rebuild with OEM extension kit | $2,360 - $7,670 |
| Weatherstrip and hardware refresh | $470 - $2,125 |
What drives the range: wall condition behind the trim, whether the floor level changed during prior remodeling, and if the rough opening needs reframing for current code. We deliver a written line-item quote before work starts, every time, under Clause 1 of the Haven Standard. The 365-Day Done Right Promise covers installation labor and workmanship; Therma-Tru’s factory warranty covers the slab and component defects. No change order proceeds without your signature, which is how we’ve kept projects within a few percent of the agreed number since 2007.
DIY or Call Us?

What you can safely check: the threshold adjustment screws, visible with the door open, turn with a Phillips head to raise or lower the cap. If the door binds at the top, the hinge side has likely settled; tightening the long screws through the jamb into the framing may help. These are observation steps, not repairs.
Where DIY goes wrong: removing a Therma-Tru slab without supporting the frame risks racking the opening, and the spring-loaded hinge pins on some multi-point lock systems release with enough force to damage the jamb or your hand. The multi-point lock mechanism itself, common on kitchen-to-garage fire-rated entries, requires factory shimming; misalignment voids the fire rating and can jam the deadbolt. We carry the shims, the backset gauges, and the documentation to pass Miami-Dade inspection if your project triggers permit requirements. Call (786) 321-4970 and we’ll walk through what you’re seeing before you decide.
FAQs
Expect 15 to 20 years for the slab, 7 to 10 for the threshold and weatherstrip under daily use with our humidity and UV exposure. The composite jamb lasts indefinitely if water is kept out of the end grain. Call (786) 321-4970 for an exact quote on refresh versus full replacement - estimates are free.
The cap can be shimmed temporarily if the adjustment screws still thread, but the composite substrate beneath it delaminates once moisture reaches it. We’ve never seen a lasting repair; replacement is the honest recommendation. Call (786) 321-4970 for a written price on the swap.
A slab-and-jamb replacement in an existing opening takes one day; a full rough-opening reframe with trim and paint adds a second. We stock common Therma-Tru jamb widths and can source same-day for confirmed models. Call (786) 321-4970 to schedule.
We carry thresholds, weatherstrip kits, and hinge sets for Classic-Craft and Smooth-Star in 4-9/16 and 6-9/16 inch jamb depths. Slabs and prehung units are warehouse-stocked in Miami and available next-morning. Call (786) 321-4970 to confirm your series and size.
Rowan Construction Group Miami is an independent service provider, not affiliated with Therma-Tru. We also stock and install components for KraftMaid, Cambria, and Silestone systems.
Ready to get a number you can screenshot? Call (786) 321-4970 to schedule your free estimate. We’ll bring the tape measure, the part catalog, and a written quote before any work starts. Measure twice, write it down, then build it.
Written by Grant Rowan, Owner, Rowan Construction Group Miami at Rowan Construction Group Miami, serving Miami and nearby areas.







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