New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows Dallas pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Therma-Tru Windows & Doors in Irving, TX | Westlight Windows Dallas
We provide independent Therma-Tru door and Irving Window Installation service across Irving, TX, and the one thing that makes our work here different is that we know exactly what thirty or forty years of Texas sun, clay soil, and thunderstorm cycles do to Therma-Tru fiberglass and frame components. We’re not a manufacturer-authorized shop, and we don’t pretend to be. What we are is a crew that has pulled, rehung, and rebuilt enough Therma-Tru units in Valley Ranch and Las Colinas to know precisely which repairs last and which ones don’t. Call us at (361) 441-0865 for a written quote before any work starts.
Why Irving Residents Choose Us for Therma-Tru Service
Therma-Tru doors are well built, but Irving’s climate finds their weak points faster than most places. Owen Satterfield, owner of Westlight Windows Dallas, learned the windows and doors trade at Los Angeles Trade-Technical College and has spent over two decades in this business. He and our crew work on Therma-Tru doors and frames across Irving’s 1970s through 1990s housing stock every week, so we know exactly how fiberglass skins, polyurethane cores, and corner joinery hold up after decades of Texas sun and humidity.
We carry OEM Therma-Tru door slabs and components for full replacements, and for hinge, sweep, and threshold repairs we select heavy-duty aftermarket parts that outperform the original equipment in Texas heat and humidity. If I wouldn’t put it on my own house, I’m not putting it on yours. That’s the standard every one of our technicians in Irving works to.
Our Therma-Tru sales & service work is backed by the 365-Day Done Right Promise. If the repair isn’t right within the guarantee period, we come back and fix it at no charge. No negotiating. No revisiting the invoice.
Common Therma-Tru Windows & Doors Problems We Solve in Irving
Here’s what we see most often when we roll up to houses throughout our Irving service area:
- Fiberglass skin delamination along the bottom rail. When Irving gets those heavy spring and fall downpours, water pools against door bottoms on slab foundations. Prolonged puddle contact separates the fiberglass skin from the core, especially on older Classic-Craft doors. We repair or replace the slab depending on how far the delamination has spread.
- Corner joint separation on west-facing Classic-Craft doors. Afternoon sun beats on the west side of a house for hours in an Irving summer. The corner joinery on fiberglass doors can separate, causing binding, visible light gaps, and air leakage. We refit corners with reinforced fiberglass brackets and realign the slab.
- Sun-faded factory finishes and stress cracks in the polyurethane core. Fifteen plus years of direct Texas heat will fade a Fiber-Classic Oak finish and can create hairline cracks in the core material. We refinish where possible and replace when the structural integrity is compromised.
- Warped or loosened threshold caps on Smooth-Star doors. Heavy downpours plus heat cycling loosen threshold caps and allow water intrusion under the door. We replace threshold assemblies with heavy-duty components that handle clay soil movement better than the originals.
- Sticking doors that only bind in summer. Hot, humid air makes door slabs, frames, and the house itself expand. A Therma-Tru door that swings fine in January can bind in August. We plane, shim, and realign to give the slab proper clearance year-round.
Therma-Tru Service in Irving: What Local Conditions Mean for Your Equipment
In Irving’s Valley Ranch, many Therma-Tru doors were installed with original thin aluminum thresholds that now buckle under the expansive clay soils common to the area. This causes the door to sag and the lock to misalign, a problem you won’t find in nearby Dallas neighborhoods on pier-and-beam foundations. The clay under Valley Ranch and parts of Las Colinas swells when wet and shrinks when dry, and that movement transfers directly through a slab foundation into the door frame and threshold. What starts as a slightly sticky latch becomes a deadbolt that won’t throw and a threshold that traps water against the door bottom. We see this pattern constantly on South MacArthur Boulevard, MacArthur Boulevard, and the side streets off Valley Ranch Parkway. The fix is usually a reinforced threshold with better support and a door slab rehung to match the house’s settled frame geometry. A generic Therma-Tru repair approach won’t address the soil movement underneath the door, which is why local knowledge matters here.
Our crew recently serviced a Therma-Tru Classic-Craft Mahogany entry door on South MacArthur Boulevard in Valley Ranch where the southwest afternoon sun had caused the bottom rail skin to delaminate and the slab to bind against the frame. We removed the slab, refit the corners with reinforced fiberglass brackets, and hung a new door to restore a tight seal for the homeowner’s July air-conditioning bill.
Therma-Tru Models & Products We Service in Irving
We service the full Therma-Tru residential lineup that’s common in Irving homes:
- Classic-Craft Mahogany Collection – fiberglass entry doors built to look like real mahogany. We handle skin delamination, corner separation, hinge sag, and finish work.
- Smooth-Star fiberglass entry doors – the workhorse door in many 1980s and 1990s Irving homes. Common issues include threshold failure, sweeps, and weatherstripping.
- Fiber-Classic Oak series – we address sun fading, core cracking, and frame alignment on these oak-grained fiberglass doors.
- Tru-Defense impact-rated door systems – we install and retrofit these for homeowners who want windborne-debris protection during severe thunderstorm season.
We also handle Energy-Efficient Upgrades and Replacement Doors, and for Irving Window Replacement alongside Therma-Tru doors, we carry impact-resistant window options from PGT and CGI. Our techs keep common Therma-Tru threshold components, sweeps, hinges, and weatherstripping on the trucks for faster Irving turnaround.
Therma-Tru Service Pricing in Irving
Most Therma-Tru repairs in Irving fall into a few clear ranges:
- Hinge, sweep, or weatherstripping replacement: $120 – $300
- Threshold repair or replacement: $250 – $600
- Fiberglass skin repair (spot delamination): $300 – $700
- Corner joint refit and realignment: $350 – $800
- Full door slab replacement (installed): $1,400 – $3,200 depending on model and finish
- Tru-Defense impact door retrofit (installed): $1,800 – $4,500
What drives the cost is what we find when the door comes off: soil movement damage, how far the delamination has spread, and whether the frame itself has settled. Every customer receives a written price before any work starts, no doorstep surprises, no revised invoices after the fact. That’s the Kingswell Way. Call (361) 441-0865 for a free estimate and we’ll give you a straightforward number.
Serving Irving, TX - Our Local Coverage Area
We’re based in the Irving 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 Windows & Doors in Irving
Yes, we can repair delamination when it’s caught early, typically by injecting adhesive and clamping the skin back to the core. If the delamination covers more than a few square inches or the core has absorbed water, a full slab replacement is the honest call. We’ll show you the condition up close and give you both options with written prices.
Summer heat and humidity cause the fiberglass slab, the frame, and your home’s framing to expand. On Irving’s west-facing elevations, afternoon temperatures are brutal, and the door binds against the jamb. The fix is setting proper reveal clearances and, if the house has settled on clay soil, realigning the frame.
We do. Tru-Defense systems make sense for Irving homeowners who want rated protection against windborne debris during severe thunderstorm season. We measure, order the correct swing and finish, and install to the manufacturer’s specifications. A retrofit usually takes one day once the door arrives. Call (361) 441-0865 for a free estimate.
We can refinish most Fiber-Classic Oak doors to blend with the original factory finish, though exact color matching depends on how much UV exposure the door has seen. West-facing doors in Irving fade worse than any others. If the core is sound, refinishing is the cost-effective route. We’ll give you a straight answer after seeing the door.
The usual fix in Irving is replacing the original thin threshold with a heavy-duty reinforced unit and adjusting the door slab height so the sweep seals properly. On slab foundations with clay soil movement, the threshold may also need to be shimmed level. This repair typically runs $250 to $600. Call (361) 441-0865 and we’ll get you a written quote.
Service Areas Near Irving
Along with Irving, we provide Therma-Tru service in Dallas, Arlington, Coppell, Grapevine, and Mesquite. If you’re right on the edge of the city, call us and we’ll confirm coverage.
Book Your Therma-Tru Service in Irving Today
Call (361) 441-0865 to schedule your free estimate. We answer the phone with a live person, and we’ll get your Therma-Tru door assessed and priced in writing before any work begins.
Written by Owen Satterfield, Owner at Westlight Windows Dallas, serving Irving since 2009.
Six Reasons Homeowners Choose Westlight Windows Dallas
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.