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AfterFast, Reliable Window Installation Across San Antonio
Window installation in San Antonio runs between $450 and $1,850 per opening for most residential work, with custom historic-district units and impact-rated glass pushing toward $4,200 and beyond. The work usually takes one day per window once the units arrive. Lead times on factory orders run 3 to 8 weeks these days, so the smart move is to schedule your free estimate for our Window Replacement in San Antonio before you actually need the glass. Call (888) 635-0804 and we’ll walk you through what your house needs.
We know San Antonio’s houses because we work on them every week. The 1920s Craftsman bungalow in Beacon Hill with original sash weights behaves differently than the stucco-clad Spanish Colonial Revival in Monte Vista, and nothing about a tract home off Loop 410 prepares you for the black gumbo clay under King William. Local experience is not a marketing phrase here. It is the difference between a window that operates smoothly for twenty years and one that binds by the second summer.
Why TruePane Windows & Doors Is San Antonio’s Preferred Window Installation Company
Dale Kessler founded TruePane in 2008 after watching too many San Antonio homeowners get stuck between a manufacturer who voided a warranty over installation defects and an installer who had already closed up shop. The company has served this community since 2008 through that heritage, and we now run authorized-installer relationships with more than a dozen manufacturer lines. Every job we take gets both warranty layers registered in writing before our truck leaves your driveway. We call it The Keystone Standard, and it is the reason homeowners near Government Hill and Lavaca keep our number on the fridge.
Our technicians are background-checked, uniformed, and trained to work in your home the way they would work in their own mother’s. They measure every rough opening twice. They quote manufacturer lines side by side on paper so you see exactly what you are buying and why it costs what it costs. And they do not leave a job until the pane is true. That rule has been on Dale’s whiteboard since day one: if the pane is not true, the job is not done.
We also answer the phone. A live person picks up 24 hours a day, seven days a week. Not a voicemail tree, not a callback form, not a regional call center in another state. When you call (888) 635-0804, you get someone who can actually help you schedule an estimate for Window Installation in your part of San Antonio.
Our Window Installation Services in San Antonio
We install, replace, and service windows for residential homeowners throughout San Antonio. The four styles below cover most of what we quote in this city, but we also handle sliding windows, bay and bow windows, garden windows, and fully custom units when the house calls for it. Every installation carries our Done Right Promise: if it is not done right, we make it right. No paperwork fights, no arguing, no fine print that covers neither.
Casement Windows
Casement windows are the workhorse of historic San Antonio homes, and for good reason. The crank mechanism seals the sash tight against the weatherstripping when closed, which matters in a city where summer heat and winter arctic intrusions both push against the frame. In neighborhoods like Monte Vista (78201) and King William (78204), we regularly install custom-divided-light casements sized to original rough openings after the Office of Historic Preservation approves the submittal. Expect to pay $950 to $2,400 per casement unit in San Antonio, installed.
Awning Windows
Awning windows hinge at the top and open outward, which makes them a practical choice above kitchen sinks and in bathrooms where you want ventilation without giving up privacy. In San Antonio’s 78207 and 78208 ZIP codes, many older bungalows use awning units in back walls that face hot western exposure. The angled sash actually sheds rain better than a double-hung in a sudden Hill Country downpour. Typical installed cost runs $600 to $1,550 per unit.
Fixed & Picture Windows
Fixed windows do not open. They exist to frame a view and bring in light. San Antonio homes with mature live oak canopies often need fixed units on shaded east walls, where ventilation matters less than a clean sightline to the yard. We install Energy-Efficient Windows - San Antonio with low-E coatings selected for San Antonio’s UV load, which is brutal on both furniture and the window seal itself. Expect $480 to $1,900 per unit depending on glass package and size.
Single & Double Hung Windows
Single and double-hung windows remain the most common replacement in San Antonio’s post-1950 neighborhoods and in newer construction around 78209. A double-hung lets you ventilate from the top or bottom, which matters when an August afternoon hits 102 and you want hot air out while keeping cooled air in. The critical detail in this city is the balance system: cheap spiral balances fail early in San Antonio’s heat, and the sash starts dropping on its own. We spec better hardware as standard. Installed cost for a double-hung runs $520 to $1,400 per opening in San Antonio.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Antonio
TruePane is an authorized installer for PGT, CGI, CWS, ES Windows, among others. We quote these brands side by side on paper so you can compare frame construction, glass packages, and warranty terms without guessing. Impact Windows & Doors - San Antonio from PGT and CGI are popular with homeowners in 78209 who want storm hardening without hurricane shutters. ES Windows makes a thermally broken aluminum frame that holds up well against San Antonio’s summer expansion cycles. We stock local parts for common hardware and seal failures in this market, which means faster turnaround on service calls than a company shipping from a warehouse in another state.
Common Window Installation Problems We See in San Antonio Homes
- Fogged glass from early IGU seal failure. San Antonio’s summer heat cycles break down the insulating glass unit seals in low-grade windows within a few years. Once fog appears between the panes, the thermal performance is gone and the only real fix is glass replacement.
- Sashes binding in their jambs. The expansive black-clay soils along the Balcones Fault Zone rack frames out of square seasonally. A double-hung that operated fine in January may bind hard by July. We re-shim and trim as an expected service, not a surprise upcharge.
- Undetected moisture behind stucco-clad heads. Older stucco bungalows throughout 78201 through 78210 need flexible through-wall drip edge flashing at window heads. Without it, water wicks behind the hard coat and rots the framing before anyone sees a stain on the inside.
- Thermal bridging on original metal frames. Homes built mid-century with steel casement windows lose enormous amounts of heat in winter and gain it in summer. Replacing those frames with thermally broken units changes both comfort and utility cost, and it usually requires custom sizing.
Pricing for Window Installation in San Antonio, TX
| Service | Typical San Antonio Price Range |
|---|---|
| Double-hung replacement (standard size) | $520 – $1,400 |
| Casement window (custom, historic district) | $950 – $2,400 |
| Awning window | $600 – $1,550 |
| Fixed / picture window | $480 – $1,900 |
| Full glass replacement (insulated unit) | $280 – $750 |
What drives the price up in San Antonio is usually one of three things: custom sizing for a pre-1950 rough opening, historic-district approval and custom millwork, or impact-rated glass packages from PGT or CGI. Factory lead times, not labour, set the calendar on higher-end work. Before we order anything, the price is fixed in writing. You sign a line-item quote. That number does not move unless you change the scope. Call (888) 635-0804 for a free estimate and we’ll put actual prices on paper for your house.
We Also Serve Cities Near San Antonio
Our crews serve San Antonio directly and also cover nearby communities including Lackland A F B, Kelly Usa, Converse, and Adkins. If you live just outside the city and need the same craft-level window installation, we’ll be there when we say, with the same written pricing and warranty registration. Scheduling is coordinated from our San Antonio office.
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 - Window Installation in San Antonio
Yes, if your home sits within the King William (78204) historic district boundaries, you need a Certificate of Appropriateness from San Antonio’s Office of Historic Preservation before any window or door replacement can legally proceed. Expect the review to add two to six weeks to your project timeline, depending on the current queue and whether the submittal requires revisions. We prepare the drawings and handle the application as part of our project scope, and every project stays on the approved set from permit to final inspection. Call (888) 635-0804 if you need a realistic schedule for your specific address.
The short answer is the soil under your house. San Antonio’s expansive black-clay soils swell when wet and shrink when dry, and the moisture swing between seasons racks door frames and window openings 1/4 to 3/8 inch out of square. A wooden double-hung with tight tolerances will bind as the jamb loses its plumb. The fix is usually re-shimming and trimming the sash, not replacing the unit. In King William and Monte Vista, this is routine maintenance, not a window defect.
Almost never. San Antonio’s pre-1950 bungalows in neighborhoods like Beacon Hill, Alta Vista, and Lavaca were built with non-standard rough openings and original sash weights. A standard catalog unit from Andersen or any other manufacturer rarely drops in without modifying the framing. We quote custom sizing and, where the historic district requires it, milled-to-match trim and divided-light patterns. The cost for custom sizing is part of the written estimate before you commit. Call (888) 635-0804 and we’ll measure the opening and tell you exactly what will fit.
The detail that matters is a flexible through-wall drip edge flashed at the head before the window is set. On a Spanish Colonial Revival in King William, our crew installed custom-divided-light Pella casement windows sized to the original rough openings after the Office of Historic Preservation approved the submittal. The existing stucco jambs had drifted 5/16 inch out of square, so we re-shimmed and flashed the heads with that drip edge before setting the argon-filled low-E glass units. The architect specified a bronze anodized finish, and the project stayed on the approved drawing set from permit to final inspection. That head-flashing detail is the difference between a window that sheds rain for thirty years and one that rots the framing behind the hard coat.
The February 2021 storm pushed San Antonio temperatures into the single digits and exposed how many homes had single-pane glass or thermally bridged metal frames that could not handle the sudden contraction. Glass points gave way, seals failed, and thousands of units cracked or shattered outright. If you are replacing windows now, look for dual-pane or triple-pane units rated for both thermal extremes, with a low-E coating selected for San Antonio’s UV exposure and an insulating spacer that will not fail in the summer heat. We quote those packages side by side on paper so you see the exact glass specs and warranty durations before you spend a dollar.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Antonio since 2008.