Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why San Antonio Homeowners Choose Therma-Tru Construction
Therma-Tru entry systems in San Antonio need a very specific kind of service, and this page is where we explain what that looks like. We are Elmstead Remodeling San Antonio, an independent Therma-Tru service provider, not a factory-authorized dealer. We rebuild, rehang, and retrofit Therma-Tru doors across the city, from Alamo Heights to Stone Oak to Terrell Hills, and the work always starts with a written price. Call (432) 233-0976 for a free estimate on any Therma-Tru repair, retrofit, or full entry system replacement.
San Antonio is hard on entry doors. The expansive clay soil under our slab foundations swells with spring rains and shrinks through triple-digit summer droughts, shifting door frames by fractions of an inch that turn into binding, sticking, and uneven gaps. Add west-facing UV exposure that bakes fiberglass skins for five months a year, and you have a climate that tests every Therma-Tru door in ways the factory manual never mentions. We have rebuilt and rehung hundreds of Therma-Tru entry systems across San Antonio’s shifting soil, and we know exactly which failures show up on Smooth-Star, Fiber-Classic, Pulse, and Tru-Defense models here. Graham Stein, our owner, learned the construction trade at Los Angeles Trade-Technical College before spending decades framing and finishing, and he writes every scope of work down before a single tool leaves the truck. The price you sign is the price you pay.
Why Trust Elmstead Remodeling San Antonio for Your Therma-Tru Construction?
Therma-Tru doors are built on a fiberglass skin over a foam core, with composite stiles and rails. They behave differently than steel or solid wood doors, and fixing them correctly means knowing exactly how that assembly reacts to San Antonio heat and soil movement. Our crews work on these doors weekly. We know that a Smooth-Star slab can be perfectly sound while the frame has drifted 3/16 of an inch out of square. We know that Pulse bottom sweeps wear in predictable patterns on doors that face afternoon sun. We know that Fiber-Classic jambs rot from the bottom up when sprinkler heads sit too close to the entry.
We are not authorized by Therma-Tru, and we say that plainly on every job. What we bring is direct field knowledge and a repair discipline built around the door’s actual condition, not a sales target. Graham and his crew have worked across San Antonio for years, including projects near the King William Historic District where older homes demand patience and an eye for original detail. The same patience applies to a 1980s ranch in Churchill Estates or a newer build outside Loop 1604. We source genuine Therma-Tru replacement slabs, hinges, and weatherstripping whenever structural or dimensional integrity matters, and we explain exactly when an aftermarket part is the smarter call. Every job ends with a photo of the cleanup before we leave. That’s the Cedarwell Care Promise, and it’s not optional.
Styles & brands we work with
Common Therma-Tru Construction Problems We Fix in San Antonio
These are the five failures we see most often on Therma-Tru doors in San Antonio. Not every Therma-Tru door develops these problems, but when one does, it’s almost always tied to our clay soil, our summer sun, or our monsoon-season splashback.
- Binding and sticking doors from clay-soil foundation movement. San Antonio’s expansive clay swells in wet months and shrinks in dry months, and slab foundations move with it. When a foundation corner drops even an eighth of an inch, a Therma-Tru frame can twist enough that the door binds at the top corner while leaving a gap at the bottom latch side. This is the most common call we get in older neighborhoods like Terrell Hills and Alamo Heights, where bedrock sits just a foot below the surface and soil movement is more pronounced. We re-shim the frame with composite shims that do not compress or rot, and the door swings clean again.
- Failed compression weatherstripping on Pulse models. Pulse entry systems use a compression sweep along the bottom of the door that seals against the threshold. In San Antonio’s triple-digit summers, that sweep bakes, flattens, and loses its rebound. The result is a visible gap of daylight under the door and warm air pulling into the entryway. Energy bills climb. We replace Pulse bottom sweeps regularly, and we keep common sizes on hand for same-week service.
- Cracked or faded fiberglass skins on older Smooth-Star doors. A west-facing Smooth-Star door in San Antonio takes direct afternoon sun from May through September. Over a decade or more, the UV exposure dulls the factory finish and can create hairline cracks in the skin, especially around the panel edges. A cracked skin compromises the door’s moisture resistance. We strip, patch, and refinish when the cracking is surface-level. When the cracks run through the skin, the slab needs replacing.
- Rot in Fiber-Classic jamb bottoms from sprinkler overspray and monsoon splashback. Fiber-Classic doors have wood-grain texture and a composite slab, but the jambs are frequently installed as wood. San Antonio sprinkler systems often throw water against the entry, and monsoon-season downpours splash up from uncovered concrete stoops. Over time, the jamb bottom rots and the frame loses its structural hold. We cut out and replace the rotted section, then adjust sprinkler throw or recommend a stoop overhang to prevent recurrence.
- Rusted hinge screws pulling from jambs on Tru-Defense doors. Tru-Defense doors are heavy, and when the frame shifts with soil movement, the hinge screws carry additional shear load. We regularly see rusted screws that have begun pulling from the jamb, which causes the door to sag and rub against the threshold. The fix is not just longer screws. It is re-shimming the frame to square and using composite shims that hold dimension through seasonal movement.
Therma-Tru Parts & Our Repair-vs-Replace Approach
Therma-Tru replacement slabs, hinges, and weatherstripping are engineered to work together, and we use them whenever the repair involves the door’s structure or dimensional fit. A replacement slab has to match the existing frame’s reveal and swing, and a genuine Therma-Tru slab is the safest way to guarantee that. For adjustable sills and some multipoint lock components, we use quality aftermarket parts because they hold up as well or better in San Antonio’s heat, and they cost noticeably less. We tell you which path we are recommending and why, in writing, before any work begins.
Our decision framework is simple. If the slab is sound and the frame is square or can be re-shimmed, we repair. That means a new sweep, a patched and refinished skin, a new threshold, or a hinge re-set. If the core is compromised, the door is warped, or the customer wants the energy efficiency of a modern Pulse system with its tighter air seal, we recommend replacement. We never push a replacement on a door that has ten good years left. Call (432) 233-0976 and we will tell you the honest answer after a proper inspection.
Our Therma-Tru Service Process – Step by Step
Every Therma-Tru job follows the same written sequence. It is how Graham runs every project: “Write it down, price it once, do it right.”
- 1
Inspection and written diagnosis. We arrive, check the slab, hinges, frame corners, sweep, and threshold. We note exactly which Therma-Tru model you have and what we found. You get a written scope of work and a fixed price before any tools are unloaded.
- 2
Repair or replacement. For repairs, we re-shim frames with composite shims, replace sweeps and thresholds, patch and refinish skins, and re-set hinges with fresh hardware. For replacements, we remove the old system, set the new Therma-Tru slab or Pulse system, and square the frame against San Antonio’s soil movement, not just against the day’s conditions.
- 3
Fit and seal testing. We close the door on a dollar bill test at the sweep and weatherstripping points, check the reveals around all three sides, and confirm the latch and deadbolt throw cleanly. We also check that the door works with a single finger, not a shoulder.
- 4
Cleanup with photo proof. We sweep, vacuum, and photograph the entry before we leave. The photo comes with the job. The 365-Day Done Right Promise covers every completed project, so if anything is not right within the year, we make it right.
See the difference
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After
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AfterTherma-Tru Products We Service & Install in San Antonio
We service and install across the main Therma-Tru entry lines: Smooth-Star, the fiberglass door with a smooth, paintable surface; Fiber-Classic, the wood-grain textured line that accepts stain for a natural look; Pulse, the modern system with tight compression weatherstripping and energy-efficient cores; and Tru-Defense, the heavier security-rated line. We stock common bottom sweeps, thresholds, weatherstripping, and composite shims locally so most San Antonio repairs do not wait on a parts shipment. Full slab replacements and Pulse retrofits are ordered to spec from Therma-Tru supply channels.
We Also Service These Brands
Therma-Tru doors are one piece of a larger picture, and our crews work across the house. We install kitchens with KraftMaid cabinets and Cambria or Silestone countertops, and we fit bathrooms with Kohler fixtures. If your Therma-Tru entry project grows into something bigger, we already know the brands you are likely choosing.
FAQs – Therma-Tru Construction Service in San Antonio
Why does my Therma-Tru Fiber-Classic door bind against the frame every summer but close fine in winter?
Summer heat dries out San Antonio’s expansive clay soil, which shrinks and shifts the slab under your entry. The frame twists a small amount, and the door binds at the top corner. Winter moisture swells the soil back and the door closes normally again. The fix is re-shimming the frame with composite shims that do not compress or swell, so the door stays square through seasonal movement. Call (432) 233-0976 for an exact quote, and we will tell you if the frame is the problem or if something else is going on.
Can you repair a cracked Therma-Tru Smooth-Star door skin, or does the whole slab need replacing?
Surface-level hairline cracks can be patched and refinished, and we do that regularly on San Antonio doors that take heavy western sun. Cracks that run through the skin into the core mean the slab’s moisture barrier is compromised and the door should be replaced. We will show you the difference during the inspection. Estimates are free, and the written price you get is the price you pay.
How do I stop monsoon-season water from seeping under my Therma-Tru Pulse door?
Water seeping under a Pulse door usually means the bottom sweep has lost its compression or the threshold sits too low relative to the stoop pitch. We replace the Pulse sweep and, where needed, adjust or replace the threshold so water sheds away from the house. After any monsoon repair, we run a hose test across the threshold to prove the seal before we leave. Call (432) 233-0976 to schedule an inspection.
Is it better to repair my old Therma-Tru entry door or replace it with a new Pulse system?
It depends on the slab condition, the frame squareness, and your energy priorities. A sound older Smooth-Star or Fiber-Classic door often needs nothing more than a new sweep and a re-shimmed frame, which costs a fraction of a replacement. A warped slab, a compromised core, or a desire for the tighter air seal of a modern Pulse system points toward replacement. We write both options down with prices, and you choose. Call (432) 233-0976 and we will help you decide without pressure.
Can you match the factory stain color on my Therma-Tru Fiber-Classic door when repairing a damaged area?
Yes, and this is where field experience matters. Fiber-Classic stain colors shift with years of UV exposure, so the factory color name alone is not enough. We mix stain on site to match the door as it looks today, not as it looked when it left the factory. The touch-up blends into the existing finish and weathers consistently with the rest of the door.
How much does Therma-Tru construction cost in San Antonio?
Most Therma-Tru repairs in San Antonio fall between $75 for weatherstripping and $400 for a full frame re-shimming. A slab replacement runs $900 to $2,400. A complete Pulse entry system retrofit with side lites ranges from $3,500 to $9,000. These are our written, fixed-price ranges, and what you sign is what you pay. Call (432) 233-0976 for an exact quote on your door.
| Therma-Tru Service | San Antonio Price Range |
|---|---|
| Door slab replacement (Smooth-Star or Fiber-Classic) | $900 – $2,400 |
| Full entry system retrofit with side lites (Pulse) | $3,500 – $9,000 |
| Weatherstripping and threshold replacement | $75 – $300 |
| Frame re-shimming and square-up | $150 – $400 |
Key Takeaways
- Elmstead Remodeling San Antonio is an independent Therma-Tru service provider, not a factory-authorized dealer.
- San Antonio’s expansive clay soil and intense UV exposure create door failures that generic contractors miss.
- We write the price before any work starts, every time, and the 365-Day Done Right Promise covers every completed job.
- Repair first when the slab is sound and the frame is square. Replace when the door is warped, the core is compromised, or energy efficiency is the goal.
- Our crews wear shoe covers, use drop cloths, and photograph the cleanup before they leave.
Book Your Therma-Tru Service in San Antonio, TX
If your Therma-Tru door is sticking, drafty, cracked, or letting in water, call (432) 233-0976. A live person answers, and we will schedule a free estimate. The inspection is thorough, the price is written, and the work is done right.
Written by Graham Stein, Owner at Elmstead Remodeling San Antonio, serving San Antonio since 2005.
