Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Therma-Tru Construction in Houston, CA | Rowan Construction Group
Rowan Construction Group provides independent Therma-Tru door service across Houston, from Heights bungalows to Katy slab homes. The one thing that makes our Therma-Tru work different here: we understand how the city’s expansive clay soils move foundations, bind door frames, and turn a standard entry door replacement into a structural decision. We’re not manufacturer-affiliated or authorized, and we don’t need to be. We’ve installed, repaired, and replaced hundreds of Therma-Tru units across Houston’s pier-and-beam and slab-on-grade housing stock since 2007. Call (470) 298-9650 to schedule a free estimate with a written price before any work starts.
Why Houston Residents Choose Us for Therma-Tru Service
Therma-Tru doors are built in a factory. Houston foundations are built on clay that moves. The gap between those two realities is where most door failures happen, and it’s where we spend our time. Grant Rowan, our owner, trained in construction technology at Los Angeles Trade-Technical College and has spent nearly two decades on residential and light commercial projects where the framing, the slab, and the door had to be understood as one system. We approach Therma-Tru work the same way: we don’t just swap a door, we check the reveal, the rough opening, and the sill before we quote a number. We use genuine Therma-Tru hinges, weatherstripping, and sills when available through independent supply channels because off-brand seals don’t match the exact compression profiles on Fiber-Classic and Smooth-Star doors. Every job gets a documented photo record, a written scope, and a flat written price. No change proceeds without a signed change order. Our Therma-Tru sales & service work across Houston follows the same discipline: measure twice, say it once, show your work.
Common Therma-Tru Construction Problems We Solve in Houston

- Warping and binding entry doors on slab-on-grade homes. Houston’s expansive black clay shrinks during droughts and heaves during wet spells. In Katy and Pearland, where 1980s-2000s slab-on-grade brick-veneer tract homes dominate, slabs can move enough to bind a door at the top reveal or throw the latch out of alignment. We re-plane rough openings, adjust sills, and when the frame is too far gone, we replace the unit.
- Failed compression weatherstripping and sweeps from 110°F heat index summers. Gulf Coast humidity plus Houston’s summer heat breaks down door seals faster than manufacturers expect. Air infiltration at the sweep means higher cooling bills and water intrusion during heavy rain. We replace sweeps and weatherstripping with genuine Therma-Tru profiles matched to the specific door model.
- Fiberglass skin delamination on older Fiber-Classic doors. We see bubbling and separation of the fiberglass skin on Fiber-Classic Mahogany Collection doors that have faced years of Houston humidity. This isn’t repairable by sanding; it requires either a skin replacement where the structural core is intact, or full door replacement when the core has absorbed moisture.
- Rust and sagging of non-ball-bearing hinges, plus corroded sweeps after flooding. Meyerland, Friendswood, and Kashmere Gardens have seen repeated flooding before and since Harvey. Water exposure corrodes bottom sweeps and cheap hinges. We replace them with ball-bearing hinges that resist sag and genuine sweeps that seal tight against wind-driven rain.
- Doors knocked out of square by foundation leveling work. When a Houston homeowner has their slab leveled, the doors are often the first casualty. We re-hang and re-shim Therma-Tru units so the latch engages cleanly and the weatherstripping compresses evenly around the full perimeter.
Before
AfterTherma-Tru Service in Houston: What Local Conditions Mean for Your Equipment
Houston is the only major U.S. city without traditional zoning, so builders navigate deed restrictions and Chapter 42 lot-platting rules instead of a zoning code. For homeowners, that means renovation rules vary block by block. But the bigger issue for Therma-Tru owners is the substantial improvement rule tied to Harris County floodplain compliance. In low-lying neighborhoods like Meyerland and Friendswood, if a remodel or repair exceeds 50% of the structure’s assessed value, the entire building must be brought into current floodplain compliance and elevated to the new Base Flood Elevation plus freeboard. A kitchen remodel that includes a new Therma-Tru entry door can cross that threshold faster than most homeowners expect. We’ve seen five-figure permit surprises handed to clients by contractors who didn’t know the rule. Our Houston Therma-Tru work is often bundled only with compliant structural upgrades, so the door installation doesn’t trigger a mandate the homeowner never budgeted for. That’s the difference between knowing Therma-Tru doors and knowing Houston.
Therma-Tru Models & Products We Service in Houston

We service the full range, including the Fiber-Classic Mahogany Collection, Smooth-Star Collection, Pulse Series, and Benchmark by Therma-Tru lines. Our approach on parts is simple: genuine Therma-Tru hinges, weatherstripping, and sills whenever they’re available through independent supply channels. For OEM-compatible hardware where genuine parts have long lead times, we tell you what’s going on the door before we install it. We keep common sweep profiles, compression weatherstripping, and adjustable sills stocked for fast Houston turnaround. For heavily warped or structurally compromised units on shifted slabs, we advise replacement over repeated shaving and re-hanging, because the door needs to close square again, not just close.
Therma-Tru Service Pricing in Houston
Here are the line-item price ranges we quote in Houston. These are written flat prices, not estimates that drift once the door comes off.
| Service | Price Range |
|---|---|
| Door jamb repair | $400-$1,800 |
| Entry door replacement | $3,000-$12,000 |
| Weatherstripping and sweep kit | $200-$700 |
| Threshold and sill replacement | $350-$1,500 |
What drives the cost in Houston is the condition of the rough opening and the slab beneath it, similar to how soil shifts affect our Driveway & Pavers in Houston. A door binding because the slab heaved half an inch costs more than a straight swap. Our free estimate includes a written scope with the exact line items, so you see the number before you decide. Call (470) 298-9650 for an exact quote on your Therma-Tru door, estimates are free.
Serving Houston, TX - Our Local Coverage Area

We’re based in the Houston area and know this community well, from Fence Installation - Houston to door service. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Therma-Tru Construction in Houston
Sometimes. If the slab has heaved or settled enough to bind the door at the reveal, we check the level across the opening before quoting. In Meyerland, our crew replaced a warped Fiber-Classic front door on a brick-veneer ranch where the slab had heaved nearly an inch. We re-planed the rough opening, installed an upgraded adjustable sill with full-perimeter weatherstripping, and hung a new Smooth-Star door with ball-bearing hinges, and made sure any structural tie-in met the current Base Flood Elevation mandate before touching the interior. If the framing is structurally sound, no foundation work is needed. If it isn’t, we write that into the quote and explain why. Call (470) 298-9650 to schedule a free assessment.
Therma-Tru fiberglass doors hold up better than wood and differently than steel. Wood doors absorb Houston’s 50-plus inches of annual rain and swell, which throws off the reveal and causes sticking. Steel doors dent and rust at the base, especially in flood-prone neighborhoods. Fiberglass doesn’t absorb moisture, doesn’t rust, and handles wind pressure well when the frame and weatherstripping are in good shape. The weak point is the seal system, not the slab itself. Call (470) 298-9650 to have your seals checked before hurricane season.
Usually yes. A gap at the bottom corner after a dry Houston summer typically means the slab settled slightly during drought conditions, or the compression weatherstripping has lost its spring. We can often replace the sweep and adjustable sill, re-shim the hinge, and restore a tight seal without replacing the door. It depends on how far the slab moved. Call (470) 298-9650 for a written diagnosis and quote.
It’s possible on some Fiber-Classic models where the structural core is still intact and dry. If the skin has delaminated or bubbled but the core hasn’t absorbed moisture, a skin replacement can extend the door’s life. If the core has water damage or the door has warped from foundation movement, skin replacement is a bandage, not a fix. We’ll tell you which one you have, with photos, before you spend a dollar. Call (470) 298-9650.
If your remodel pushes past 50% of the home’s assessed value, Harris County’s substantial improvement rule requires bringing the entire building into current floodplain compliance, which can mean elevating the house to the new Base Flood Elevation plus freeboard. A single Therma-Tru door replacement won’t trigger it by itself, but bundled into a kitchen remodel, it can be part of a project that crosses the threshold. We coordinate door work with compliant structural upgrades so you don’t get hit with a five-figure permit surprise. Call (470) 298-9650 to have your project reviewed against current floodplain requirements.
Service Areas Near Houston

We serve Houston and the surrounding metro, including Katy, Pearland, Sugar Land, Clear Lake, and the Heights, Montrose, and Eastwood neighborhoods inside the loop. If you’re outside the immediate Houston area, our Houston service area page covers our full reach. We also provide Therma-Tru service in San Antonio and Therma-Tru service in San Diego for clients with properties in multiple Texas and California markets.
Book Your Therma-Tru Service in Houston Today
Get a written price before any work starts. Call (470) 298-9650 to schedule your free Therma-Tru estimate in Houston, and we’ll send a background-checked, uniformed technician with a documented photo record on every visit.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Houston since 2007.







Before
After
Before
After