New windows and doors improve comfort, cut energy bills and add long-term value to your home. Juniper Windows San Antonio 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 San Antonio, TX | Juniper Windows San Antonio
We provide independent Therma-Tru window and door service across San Antonio, from Monte Vista to Stone Oak. Therma-Tru doors fail here in ways you won’t see in Dallas or Houston, mostly because San Antonio’s expansive clay soil shifts foundations and throws entry doors out of square. That’s the problem we solve most, and it’s one a generic handyman won’t catch until it’s too late. For service or a free estimate, call (903) 488-7019.
Why San Antonio Residents Choose Us for Therma-Tru Service
Sean Mackey grew up in Los Angeles, trained at LA Trade-Technical College, and has spent well over a decade serving San Antonio homeowners. He built Juniper Windows San Antonio on a simple standard: if the numbers don’t make sense on paper, they won’t make sense on your wall either. We work on Therma-Tru doors and our Window Installation in San Antonio daily, and that daily repetition means we know exactly which components fail, why they fail in this climate, and what fix will actually hold.
We’re an independent Therma-Tru service provider. Not factory-affiliated, not authorized, not beholden to a manufacturer’s script. That matters when the honest answer is “this door isn’t worth repairing.” You’ll hear that from us. You’ll also get a written price before any work starts, and the 365-Day Done Right Promise covering parts and labor for a full year. We answer the phone 24/7 with a live person.
For broader coverage details, see our San Antonio service area page.
Common Therma-Tru Windows & Doors Problems We Solve in San Antonio
- Warped or delaminated fiberglass door skins. West-facing entries in Alamo Heights and Monte Vista take brutal afternoon UV and heat cycling. Therma-Tru Classic-Craft and Fiber-Classic skins can delaminate at the panel edges, especially the bottom rail where reflected heat off concrete porches intensifies exposure. We’ve restored many of these with heat and clamping, though severe delamination calls for an honest replacement conversation.
- Fogged insulated glass units in sidelites and transoms. San Antonio’s temperature swings run wide enough in spring and fall that seal failure shows up as condensation between panes. Failed IGUs in Therma-Tru sidelites are common in Stone Oak homes built in the 1990s. We replace the glass unit, not the whole door frame, whenever the sash and jamb are still solid.
- Rotted wood frames and swollen composite jambs. Sudden downpours plus humidity take a toll on older Therma-Tru Classic-Craft units. When wood frame rot spreads behind the jamb, we don’t caulk over it. We cut out the rot, rebuild with composite stock, and reset the door properly. If the rot reaches structural framing, we tell you.
- Binding doors from foundation movement. Expansive clay soil under San Antonio shifts with moisture. A Therma-Tru entry door that bound at the top corner in July may latch perfectly in January. Our crews routinely scribe and re-shim jambs after foundation repair, because no new door will hang square on a frame that isn’t.
- Failed door sweeps and weatherstripping. Winter cold snaps and spring dust storms push air and fine silt under entry doors. Worn Therma-Tru sweeps let that in. It’s a small part, but a failed sweep in a 1940s King William bungalow makes the whole front room drafty. We keep premium aftermarket sweeps matched to Therma-Tru rail profiles on the truck.
Therma-Tru Service in San Antonio: What Local Conditions Mean for Your Equipment
San Antonio’s expansive clay soils are the quiet culprit behind a disproportionate share of Therma-Tru door problems. Clay swells when wet and shrinks when dry, and our boom-and-bust rainfall pattern means the soil under a slab never stays put for long. Foundation movement throws entry doors out of square. The door binds at the top corner. The multipoint lock won’t engage. The sweep drags. Homeowners often assume the door itself warped, but the frame settled out of plane. Our techs identify this on the first visit because we see it constantly in neighborhoods with older slabs, such as those near Alamo Heights and Fort Sam Houston. We rarely see this exact failure pattern in Houston’s sandy loam, which drains more consistently. The fix in San Antonio is almost always to re-shim and scribe the jamb to match the settled frame, then adjust the hinges and lock. Replacing the door without addressing the frame just moves the binding problem to a new, more expensive panel.
Therma-Tru Models & Products We Service in San Antonio
We service the full Therma-Tru residential lineup: Classic-Craft, Fiber-Classic, Smooth-Star, and Benchmark. Classic-Craft and Fiber-Classic typically appear on higher-end homes in Monte Vista, King William, and Olmos Park. Smooth-Star and Benchmark dominate builder-grade installations from the 1990s and 2000s across Stone Oak, Helotes, and the northwest suburbs. When original Therma-Tru parts are available, we use them for critical structural components like hinge reinforcements and multipoint lock bodies. When they aren’t, or when aftermarket parts outperform OEM for a specific failure, we source premium equivalents matched to the exact thickness and finish. Our Therma-Tru sales & service team keeps common sweep profiles, weatherstripping, corner pads, and multipoint lock components locally stocked for faster San Antonio turnaround.
Therma-Tru Service Pricing in San Antonio
Here’s what Therma-Tru homeowners typically pay in San Antonio. Door slab re-shimming and hinge adjustment runs $150 to $350. Weatherstripping and sweep replacement lands between $90 and $220. A fogged sidelite IGU replacement falls in the $180 to $420 range depending on glass size and Low-E coating. Delamination repair on a Fiber-Classic or Classic-Craft panel runs $300 to $700, while full frame replacement with a new Therma-Tru unit starts around $1,800 and goes up based on glass, finish, and hardware. Every job begins with a free estimate that includes a written, line-item price. The number you sign off on is the number you pay. Call (903) 488-7019 to schedule yours, and we’ll walk the door with you.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio 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 San Antonio
It’s almost always slab movement from expansive clay soil, not the door itself warping. Heat dries out the clay under one side of your foundation, the slab shifts a fraction, and the jamb twists just enough that the top corner of the door binds. The fix is re-shimming and scribing the jamb, which we do routinely. Call (903) 488-7019 and we’ll confirm it on site.
Yes. Classic-Craft doors run several different wood-grain patterns depending on the production year, and we match the grain profile, stain color, and panel style before ordering. Historic-district homes in Monte Vista often need this to keep the entry consistent with the house’s character. We handle that matching as part of the estimate.
The glass unit is failed and can’t be repaired. But you rarely need a whole new door frame. We replace the insulated glass unit in the sidelite, keeping your existing door, frame, and hardware intact. It’s a $180 to $420 fix in most San Antonio homes. Call (903) 488-7019 for an exact quote.
Fading on Benchmark doors happens when the factory finish has worn and UV beats directly on the skin. The prevention is a quality exterior-grade refinish every few years, or a factory-finished replacement panel with a stronger topcoat. For west-facing doors in Alamo Heights, we also recommend a UV-resistant clear coat as part of any repair we do. It won’t stop fading forever, but it extends the finish significantly.
Replace the weatherstripping and door sweep, and check that the door isn’t out of square from clay-soil movement. Both problems compound each other. A door that’s even slightly misaligned won’t compress the weatherstripping evenly, and cold air finds the gap. We address both in one visit. Call (903) 488-7019 and we’ll check the seal and the slab movement together.
Service Areas Near San Antonio
Our Therma-Tru service trucks cover San Antonio proper plus the surrounding communities. We regularly work in Fair Oaks Ranch, Windcrest, Leon Valley, Castle Hills, and Floresville. If you’re in a historic district or a newer suburb, the soil and housing stock tell us which failure mode we’re likely to find before we even arrive. Learn more about Therma-Tru service in Fair Oaks Ranch or Therma-Tru service in Windcrest.
Book Your Therma-Tru Service in San Antonio Today
Get a written price, a live arrival time, and before-and-after photos on every job. Call (903) 488-7019 to schedule your free estimate. A real person answers, day or night.
Written by Sean Mackey, Owner at Juniper Windows San Antonio, serving San Antonio since 2001.
Six Reasons Homeowners Choose Juniper Windows San Antonio
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.