Therma-Tru Bathroom Remodeling Nationwide

Therma-Tru Bathroom Remodeling: The Miami Owner’s Guide

Therma-Tru bathroom remodeling in Miami typically runs $10,620 to $33,040 installed, with most Coral Gables and Pinecrest projects falling in the mid-teens. We stock Therma-Tru entry door systems and compatible bathroom door units for same-week installation, and we carry KraftMaid, Cambria, and Silestone lines for the full bath package. Most owners realize something’s wrong when the bathroom door won’t latch after a humid summer, the jamb has swollen past the stop, or the pre-hung unit has dropped out of square.

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We see this pattern constantly in Miami’s older Mediterranean Revival stock and in 1980s-era condos from Brickell to Aventura. The moisture cycling here is brutal on hollow-core and early fiberglass units. Therma-Tru’s solid-core and composite jamb systems hold up better, but only if they’re installed with the right shimming and fastener schedule for our conditions. We’ve replaced doors that failed in three years because the original installer skipped the composite jamb and used standard pine. Measure twice, write it down, then build it. That’s how we avoid that outcome.

Which Therma-Tru Models This Applies To

Therma-Tru makes several product lines relevant to bathroom applications, and the part you need depends on which series was originally installed. The Classic-Craft and Fiber-Classic collections are the most common in Miami bathroom retrofits we encounter, with Smooth-Star gaining share in newer builds from 2018 onward. Classic-Craft uses a solid composite block at the lock and hinge stiles; Fiber-Classic is fiberglass skin over a polyurethane core with a different edge profile. The jamb kits are not interchangeable between these lines.

To identify your unit, check the hinge edge of the door for a stamped date code and series marking, or remove a hinge and look for the foil label inside the mortise. The jamb width matters too: most Miami homes built before 1990 used 4-9/16″ jambs for 2×4 walls with 1/2″ drywall, while post-2000 construction often needs 5-1/4″ or 6-9/16″ for 2×6 walls or thicker finishes. We stock all three widths in Classic-Craft and Fiber-Classic pre-hung configurations. For Smooth-Star, we order to spec; lead time is typically five business days.

OEM Therma-Tru jambs and hinges carry the full factory warranty when installed per their published instructions. We also source equivalent-grade composite jambs from our millwork suppliers that meet the same moisture-resistance specs at a lower price point. The difference is warranty coverage: OEM parts carry Therma-Tru’s limited lifetime warranty, while our aftermarket equivalents carry our 365-Day Done Right Promise. For a bathroom door in Miami’s humidity, either option outlasts standard pine by a decade or more.

Signs Your Therma-Tru Bathroom Remodeling Is Failing

• The door sticks seasonally or won’t close at all. In Miami, this usually means the jamb has absorbed moisture and swollen past the stop molding. Composite jambs resist this; pine or MDF jambs fail predictably within two to four years of installation.
• The latch misses the strike plate or requires lifting the handle to engage. This indicates the door has dropped on its hinges, either from loose fasteners in the jamb or from the jamb itself pulling away from the framing. We see this often in Coral Gables homes where the original installer used drywall screws instead of long structural screws.
• Visible delamination or bubbling at the bottom rail. Water pooling from a shower door leak or failed caulk line wicks up into the bottom edge. Fiber-Classic doors have a composite bottom rail that resists this; if you see swelling, the unit is either an older design or the rail seal was compromised during installation.
• Light visible around the perimeter when the door is closed. This means the weatherstrip has compressed past recovery or the door has warped out of flat. In a bathroom, this gap also vents moisture into the wall cavity, which accelerates jamb decay.
• The hinge screws spin freely or strip out with minimal torque. This happens when the composite block behind the hinge face has cracked or the installer used standard-length screws that never engaged the framing. It’s a ten-minute fix if caught early; left alone, it tears the hinge mortise and requires jamb replacement.

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Replacement Cost & What’s Included

The full bathroom remodel range covers demolition, rough plumbing, electrical, waterproofing, tile or solid-surface walls, vanity and fixture installation, and the door unit. A standalone Therma-Tru door replacement in an existing bath runs toward the lower end of the door-unit line above, plus labor for removal, jamb installation, trim, and paint. What drives the variance: wall condition behind the old jamb (we’ve found termite damage in three Coconut Grove jobs this year), whether the door is standard or custom size, and whether the trim package matches existing colonial or craftsman profiles.

Every quote is flat-priced and written before work starts. Under Clause 1 of the Haven Standard, the price you sign is the price you pay; no change proceeds without a signed change order. Our 365-Day Done Right Promise covers the installation, and Therma-Tru’s factory warranty covers the door unit itself.

DIY or Call Us?

There’s a short list of checks any homeowner can do safely. Verify the hinge screws are tight with a manual screwdriver, not a drill. Check the threshold for standing water. Look at the sill cap for cracks that let water under the jamb. These take five minutes and cost nothing.

What goes wrong fast: pulling a pre-hung unit without supporting the header load, which can crack the drywall above and require structural repair. Mis-shimming the jamb so the door binds in six months. Using standard fasteners that corrode in Miami’s salt air within two years. And the big one: discovering the rough opening is out of square or the wall is out of plumb, which requires scribe-fitting or reframing. We’ve been called in after DIY attempts where the owner spent $400 on a door and $2,800 fixing the collateral damage.

We’re not affiliated with Therma-Tru; we’re an independent contractor who installs their products to their spec and our standard. If you want the number in writing before anyone picks up a tool, call (786) 321-4970.

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