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Therma-Tru Construction in New Braunfels, TX | Sawyer Remodel San Antonio
We provide independent Therma-Tru door service across New Braunfels, from full pre-hung entry installs to hinge rebuilds and threshold leveling. The one thing that makes our Therma-Tru work different here: we understand what limestone ledge, river humidity, and 100°F afternoon sun do to a fiberglass door, and we build our repairs around that. If you need a Therma-Tru slab replaced, a jamb rebuilt, or a door that finally closes without dragging, call (432) 547-6806 for a free estimate.

Our crews handle Therma-Tru sales & service work every week across New Braunfels service area, from downtown historic cottages to new Gruene subdivisions. We’re not a factory-authorized rep and we won’t pretend to be. What we are is a crew that knows exactly how Therma-Tru’s Classic-Craft, Fiber-Classic, Smooth-Star, and Pulse lines hold up against Hill Country conditions, and we price the work in writing before we touch a door.
Why New Braunfels Residents Choose Us for Therma-Tru Service

Luca Romano, owner of Sawyer Remodel San Antonio, learned the trade at Los Angeles Trade-Technical College and spent decades swinging hammers across the Southwest before building our reputation in San Antonio and New Braunfels. He still does a final walkthrough on every job, including every Therma-Tru door we set as your General Contractor in New Braunfels. That’s not a company policy. It’s just how he works.
We ride the line between OEM and honest. When a New Braunfels home needs a Therma-Tru hinge kit, threshold, or compression weatherstripping, we use genuine Therma-Tru parts when they’re available. For older Classic-Craft and Fiber-Classic models where original parts are discontinued, we’ll recommend quality aftermarket fiberglass-compatible replacements that match the slab’s profile. No mystery parts from an unmarked box. Every project runs under The Relay Visibility Guarantee: a written price before work starts, live arrival time tracking, and before-and-after photo updates. The 365-Day Done Right Promise backs every install in writing.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in New Braunfels
- Warped or binding fiberglass door slabs. West-facing entries in New Braunfels absorb full afternoon sun, and the humidity cycle between air-conditioned interiors and 100°F+ exteriors is brutal on fiberglass. We see Classic-Craft and Fiber-Classic slabs bow enough to make deadbolts impossible to throw. We repair frames and panels when they’re structurally sound, and replace only when the warp compromises security.
- Corroded hinges and threshold screws near the Guadalupe and Comal rivers. Homes in the flood zone deal with constant moisture. Hinge pins seize, threshold screws rust through, and doors start sagging. We rebuild hinge mortises and replace threshold screws before the door drops far enough to drag.
- Rotting wood frames and brickmould in pier-and-beam historic homes. Older New Braunfels homes with limestone skirting trap moisture at the base of door openings. The result is soft pine jambs that let a pre-hung unit shift. We rebuild jambs with pressure-treated stock and proper flashing, then reset the door.
- Failed compression weatherstripping from extreme temperature swings. When it’s 74°F inside and 103°F outside, compression seals work hard and fail fast. Dust gets in even though the sweep looks fine. We replace weatherstripping with profiles that actually fit the Therma-Tru slab’s kerf.
- Doors that bind in summer but not winter. This one is almost always the threshold or the jamb, not the slab. In New Braunfels, it’s frequently a limestone sill that was never leveled properly. More on that below.
Therma-Tru Service in New Braunfels: What Local Conditions Mean for Your Equipment
Here’s something you’ll only hear from a crew that actually works on the ground here. Many New Braunfels homes sit on solid limestone ledge just below the surface, which means exterior door rough openings often have masonry jambs instead of wood framing. A Therma-Tru pre-hung unit can’t just be shimmed and screwed like it can in, say, Universal City. The limestone sill has to be ground or chipped level before the threshold sits correctly. Contractors who don’t know this leave doors that bind in summer heat and swing open in winter. Off Rivercrest Drive in Gruene, our crew replaced a Therma-Tru Fiber-Classic front door that had warped nearly half an inch from afternoon sun, making the deadbolt impossible to throw. This is the kind of work you’ll see with our Bathroom Remodeling in New Braunfels. We rebuilt the rotted pine jamb, reset the pre-hung unit on a freshly ground limestone sill, and installed new heavy-duty hinges. The door now closes with a single finger even at 102°F. That’s the difference between knowing Therma-Tru and knowing New Braunfels.
Therma-Tru Models & Products We Service in New Braunfels
We work on Therma-Tru Classic-Craft, Fiber-Classic, Smooth-Star, and Pulse entry doors across New Braunfels. Classic-Craft and Fiber-Classic are the lines we see most in historic downtown homes and 1970s-90s suburban tracts. Smooth-Star shows up more often in new construction throughout Gruene. Pulse is the newest line, and we handle it the same way: OEM hinge kits and thresholds when available, quality aftermarket parts that match the slab’s profile when original parts are discontinued. We keep common Therma-Tru-compatible thresholds, hinge bearings, and weatherstripping profiles stocked for fast New Braunfels turnaround, because nobody wants to wait a week for a door part.
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AfterTherma-Tru Service Pricing in New Braunfels

Here’s what our Therma-Tru door work typically costs in New Braunfels. These are the real numbers we quote, and the written estimate you get is the number on the invoice. Period.
| Therma-Tru Service | Price Range |
|---|---|
| Therma-Tru door slab replacement | $1,200 – $2,800 |
| Pre-hung Therma-Tru entry door install | $2,200 – $4,500 |
| Therma-Tru door hinge and threshold rebuild | $400 – $900 |
| Front door frame and jamb repair | $500 – $1,400 |
What drives the price: whether your rough opening is wood or masonry, whether the limestone sill needs grinding, whether the jamb is salvageable or needs full reconstruction, and which Therma-Tru line you have. The free estimate includes a written line-item quote and a straight answer on whether repair or replacement makes more sense. Call (432) 547-6806 to schedule yours.
Serving New Braunfels, TX - Our Local Coverage Area
We’re based in the New Braunfels area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – Therma-Tru Construction in New Braunfels
Therma-Tru fiberglass doors resist moisture much better than wood, but they’re not immune to warping. The combination of intense afternoon sun on west-facing entries and the constant humidity cycle between air-conditioned interiors and 100°F+ exteriors can bow a slab over time. The key factors are proper installation, a leveled sill, and correctly aligned hinges. When installed right, a Therma-Tru door handles New Braunfels summers well. Call (432) 547-6806 if yours has started binding.
It’s common, but it’s not something you should live with. The heat causes the slab and frame to expand, and if the threshold wasn’t leveled properly against the limestone sill underneath, the door will drag. In New Braunfels, we solve this by grinding the limestone sill level, resetting the threshold, and checking hinge alignment. It’s a repair, not a replacement, in most cases.
Yes. We work on German-influenced historic homes in downtown New Braunfels regularly and we’re careful with limestone exteriors. The trick is preserving the existing masonry jamb while rebuilding the wood components inside the opening. We grind only what’s necessary to level the sill, flash the opening properly, and set the new Therma-Tru unit without disturbing the exterior stone. Call (432) 547-6806 for a free estimate on your specific home.
What you’re seeing is almost always failed compression weatherstripping. The extreme temperature swing between your air-conditioned interior and the New Braunfels heat outside wears out the compression seal, even when the door sweep still looks intact. Dust finds the gap. We replace the weatherstripping with a profile that matches your Therma-Tru slab’s kerf and the dust stops.
If the slab is structurally sound and the warp is minimal, repairing is usually worth it. We’ll rebuild the jamb, replace hinges and weatherstripping, and level the threshold for a fraction of replacement cost. If the slab has warped enough to compromise the door’s security or energy performance, replacement is the honest call. Call (432) 547-6806 for an exact quote – estimates are free.
Service Areas Near New Braunfels
Beyond New Braunfels, we handle Therma-Tru service in San Antonio, Alamo Heights, Universal City, Timberwood Park, and Kirby. If you’re in the Hill Country corridor or the northeast side of the metro, we’ll come to you. We also offer dedicated Therma-Tru service in Alamo Heights and Therma-Tru service in San Antonio for homeowners closer to the city center.
Book Your Therma-Tru Service in New Braunfels Today
Whether your Therma-Tru door is dragging on a limestone sill, letting in dust, or warped from Hill Country heat, call (432) 547-6806. We’ll give you a written price, a straight answer, and a door that works. Free estimates, no change orders, and the 365-Day Done Right Promise in writing on every job.
Written by Luca Romano, Owner at Sawyer Remodel San Antonio, serving New Braunfels since 2005.











