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Therma-Tru Bathroom Remodeling: The Miami Owner’s Guide
A full Therma-Tru bathroom remodel in Miami runs $10,620 to $33,040, with most owners landing between $14,000 and $22,000 depending on footprint, waterproofing scope, and fixture grade. We stock the common Therma-Tru-compatible door units, weatherstripping kits, threshold assemblies, and hinge hardware on our trucks, and we can usually match your model within a day of measuring. Most homeowners call us because water is seeping under a bath or shower door, the glass panel has fogged or cracked, or the door no longer closes flush against the Therma-Tru frame. Our job is to figure out whether you need a replacement part, a full door unit swap, or a wider repair around it.
Which Therma-Tru Models This Applies To
Therma-Tru bathroom remodeling in Miami means one of two things in practice. First, you may have a Therma-Tru exterior or interior door unit that opens into a bathroom, laundry, or wet zone and needs to be reset, resealed, or replaced as part of a remodel. Second, and more commonly, you have a shower or tub door system that was installed to match or coordinate with Therma-Tru doors elsewhere in the house, and the track, rollers, or glass has failed. Either way, the fix starts with identifying your frame and panel dimensions, not just the brand name. Therma-Tru uses fiberglass and composite door slabs with specific wall thicknesses, hinge placements, and threshold profiles. The label on the hinge edge of your door tells us the series, production date, and sometimes the exact frame kit. If that label is gone, we measure the slab width, the rough opening, and the hinge-backset against Therma-Tru’s current fiberglass door spec sheet. Bath-side door swaps are not one-size-fits-all, and a door that fits the rough opening but not the sill profile will leak at the bottom corner within a season. Sawyer Remodel Miami is an independent contractor, not a Therma-Tru dealer or affiliate, and we match parts and hardware from our own inventory and Miami supply houses.
Styles & brands we work with







Signs Your Therma-Tru Bathroom Remodeling Is Failing
- Water staining at the bottom corners of the door casing. The corner pads or sill cap have compressed or cracked, and water from shower splash or mopping is wicking into the wood subfloor. In Miami humidity, that stain shows up fast and the subfloor rots behind it.
- The door closes hard against the strike plate, or won’t latch without slamming. Composite slabs expand and contract in Florida’s heat-and-humidity cycle, and a slab that was trimmed tight at install can bind in August. The common fix is rebeveling the latch edge and adjusting the hinge screws, not replacing the whole door.
- Condensation or fog inside the glass panel of a coordinating shower door. That means the seal around the insulated glass unit has failed. Miami’s humidity makes this the most common failure point on any Therma-Tru-style glass package, and it is not repairable in place. The glass gets replaced.
- Rollers are grinding or the shower door skips when you slide it. The nylon roller bearings have picked up soap scum, hair, and hard water scale from Miami’s municipal water. If you hear the grinding long enough, the bearing seizes and the roller carves a groove into the bottom track.
- The threshold or curb feels soft when you step on it. Water has bypassed the threshold gasket and gotten into the underlayment. By the time you feel softness, the waterproofing below has already been compromised and the repair expands beyond the part itself.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
A Therma-Tru-compatible bathroom door or shower door replacement in Miami runs from $10,620 on the low end, when we’re doing a small bath with a direct door swap and standard glass, up to $33,040 for a full wet-area remodel with custom glass, waterproofing, tile, and moving plumbing lines. Most of what we quote falls between $14,000 and $22,000. The biggest cost drivers are glass panel size and thickness, whether the shower pan needs to be rebuilt, and what we find behind the drywall once the old unit comes out. Every quote we write in Miami includes the part or unit, the labor to remove and install, haul-away, sealant and flashing at the wet area, and reinstallation of all trim. We give you a written line-item price before any work starts, and the number you approve is the number on the invoice. The 365-Day Done Right Promise backs the installation for a full year, and the parts themselves carry whatever manufacturer warranty applies.
DIY or Call Us?
A homeowner can safely check three things. Confirm the door label is still there and photograph it. Clean the shower track and rollers with a toothbrush and white vinegar to rule out buildup. And check that the hinge screws are tight using a screwdriver, not a drill. Beyond that, the honest warning is this: a bathroom door unit ties into waterproofing and framing, and a shower glass panel under tension can shatter if it’s pulled at the wrong angle. We have watched Miami homeowners crack a brand-new glass panel trying to reseat rollers themselves, and that panel cost more than the service call would have. If the issue is water-related, the risk is worse: the fix you can’t see is the one that leaks. Call (850) 801-8046 and we’ll send someone who can look at the whole opening, not just the part in your hand.
FAQs

In Miami’s humidity, a Therma-Tru fiberglass door slab can last 25 to 30 years if the sill and threshold are maintained, but the weatherstripping, corner pads, and glass seals will need attention every 5 to 8 years. The frame typically outlasts the moving parts, so we usually replace components before we replace a whole unit. Call (850) 801-8046 for an exact take on your specific model and opening.
Some parts can be repaired: hinge adjustments, threshold gasket replacement, roller cleaning, and strike plate realignment are all repairs we do on the spot. A fogged glass panel, a cracked sill cap, or a seized roller with a grooved track usually means replacement of that component. We quote the repair and the replacement side by side in writing so you can see the cost difference before deciding. Call (850) 801-8046 and we’ll come take a look.
A direct door unit swap or shower door roller and track replacement is usually done in under a day once the part is in hand. If we have to order a custom glass panel or a non-standard Therma-Tru frame kit, plan on a week to ten days for the part and one more day for install. We tell you the timeline in writing when we quote, and we send photo updates before and after the work. Call (850) 801-8046 to get your job on the schedule.
We stock the common Therma-Tru-compatible items on our trucks: standard fiberglass door hinges, compression weatherstripping, corner pads, sill caps, and sliding shower door rollers. Non-standard glass sizes, custom threshold profiles, and full door units get ordered from our Miami suppliers, usually within the week. If you need a part matched, we measure and photograph everything on the first visit so we only make one trip for the fix. Call (850) 801-8046 and tell us what model you have.
If you have a Therma-Tru door or bath unit in Miami that is seeping, sticking, or fogged, call us at (850) 801-8046. We will measure it, match it, write the price before we start, and stand behind the work for a year. Good work doesn’t need a sales pitch.
Written by Luca Romano, Owner & Lead Contractor, Sawyer Remodel Miami at Sawyer Remodel Miami, serving Miami and nearby areas.


