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 homeowners arrive naming - the most impact certifications in the industry$$$
- More impact certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe value pick$$
- Vinyl systems built to strict wind codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Factory-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Fast, Reliable Window Replacement Across San Antonio
Window replacement in San Antonio usually costs between $550 and $1,300 per window installed, depending on whether you need a full-frame replacement or an insert, and most single-family jobs wrap up in one to three days. In a city where summer heat pushes attic temperatures past 140°F and hail season runs from March through May, the right glass and frame matter more than almost anywhere else in Texas. Juniper Windows San Antonio has been handling that reality since day one. If you’re tired of windows that fog, stick, or leak hot air into your living room, call (903) 488-7019 and we’ll give you a written price before anything starts.
We work from our San Antonio office and dispatch crews across the metro daily. No four-hour windows, no mystery arrival times, no price that changes when the installer walks through the door.
Why Juniper Windows San Antonio Is San Antonio’s Preferred Window Replacement Company
San Antonio homeowners have a specific set of problems most national window companies don’t understand. Clay soil shifting under slabs. Builder-grade aluminum frames from the 1990s fogging once the 10-year warranty lapses. HOA architectural committees in Stone Oak and Cibolo Canyons that want exact specs before they’ll sign off. Our crews see these every week, and we’ve built our entire process around them.
Every job starts with a written price. Not a verbal estimate, not a range with a shrug, not a “we’ll see when we get in there.” A line-item quote in writing, before a single screw turns. That’s the standard Sean Mackey set for this team, and it’s why homeowners across San Antonio, from Alamo Heights to Helotes, trust us with their Window Replacement work.
You’ll also know exactly who’s coming. Background-checked, uniformed technicians with a live arrival time you can track from your phone. When the job is done, you get before-and-after photos and a digital invoice you can pay with a tap. And every installation is covered by our 365-Day Done Right Promise: if it isn’t right, we make it right, parts and labor, for a full year. In writing.
Key Takeaways:
- Written pricing before work starts. Juniper locks the number in writing, guaranteed.
- 365-Day Done Right Promise. If the installation isn’t right, we fix it. A full year, parts and labor, no charge.
- Live phone, answered 24/7. A real person picks up. No voicemail maze.
- San Antonio-specific expertise. HOA rules, clay soil movement, failed builder-grade glass. We know it because we fix it here every week.
Window Repair in San Antonio
Window repair in San Antonio covers everything from replacing a fogged insulated glass unit in a 1996 Stone Oak two-story to freeing a rusted steel casement in Alamo Heights. Most repairs run $180 to $450 per window when the frame is still sound; full-frame replacements run $550 to $1,300 per window, and the distinction comes down to what’s actually failing.
San Antonio’s heat and humidity are brutal on window seals. A double-pane unit that fogs between the glass has lost its seal, and no amount of cleaning fixes it. The glass unit has to be swapped. If the frame itself is warped, rotting, or the wrong shape after years of slab movement, a repair stops being worth it and replacement becomes the honest answer.
Insulated Glass Unit Replacement
When the seal fails on a double-pane window, moisture gets in and the argon or krypton gas escapes. The window still opens, but it’s lost its insulating value. Replacing just the glass unit runs $180 to $450 per window in San Antonio, and it makes sense when the frame is still square and the hardware works. We stock glass for most major brands, including PGT and CGI units common in newer Stone Oak and Helotes homes.
Sash And Hardware Correction
Sticky sashes, broken balance springs, worn weatherstripping, rotted wood stops. These are wear items, especially in homes where windows get opened during San Antonio’s eight pleasant weeks a year and baked shut the other forty-four. We replace operators, springs, and tracks, and we don’t recommend replacing a whole window when a $40 part and a service call fixes the problem.
Window Replacement Company in San Antonio
Window Replacement Company work in San Antonio means swapping out the entire window, frame and all, when the opening is no longer square, the frame is rotted or rusted, or the original window was never right for Texas heat. That’s a $550 to $1,300 per window job, and it’s where our crews spend most of their time because so much of San Antonio’s housing stock has hit that age.
Full-frame replacement is the right call when water has rotted the wood jamb, when a 1990s aluminum frame has pitted from hail, or when owners in Castle Hills want to go from single-pane to impact-rated glass and need a complete re-flash through our Door Replacement in San Antonio. Insert replacement, where the new window fits inside the existing frame, is faster and cheaper, and it works when the existing frame is still solid.
Builder-Grade Upgrade Projects
San Antonio’s 1970s-to-1990s boom produced thousands of brick veneer homes with original aluminum windows. They were cheap when installed, and by year twenty most are fogged, leaking, or rusted. Replacing a full house of builder-grade aluminum with low-E vinyl or impact-rated units is the single biggest energy upgrade most of these homes will ever get. A typical 12-to-18-window project runs $7,000 to $18,000 depending on glass package and frame material.
Historic And Architectural Retrofits
Monte Vista and King William homes often have wood windows under city historic review. Steel casements in Alamo Heights near Fort Sam Houston need full-frame retrofits when operators are discontinued. These jobs require custom shim packs, deeper jambs, and sometimes matching sightlines to keep the architecture intact. We’ve done enough of them to know what the review boards ask for.
Trusted Brands We Service in San Antonio
We work with eight product lines: PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and Viewlux service in San Antonio. For San Antonio specifically, PGT and CGI impact-rated units are the go-to for homes in hail corridors, and we keep common parts and glass stocked locally so turnaround stays short. If you have a builder-grade 1990s aluminum window that’s fogged, we can match the glass package. If you want a 0.25 SHGC low-E double-hung for west-facing windows, we’ll show you exactly what that costs in writing before you commit. No brand is forced, and no job is a compromise.
Common Window Replacement Problems We See in San Antonio Homes
- Fogged builder-grade insulated glass in Stone Oak and Helotes. Homes built in the 1990s got aluminum-frame windows with 10-year warranties. Year twelve, the seals go, moisture gets in, and the glass fogs. Homeowners usually catch it on the upstairs bedrooms first.
- Rusted steel casement windows in Alamo Heights and near Fort Sam Houston. Original 1940s-50s steel casements rust shut at the jamb. Replacement operators are often discontinued, so a sash-only fix isn’t possible; the window needs a full-frame retrofit.
- Flashings failing on 1970s brick veneer retrofits. When vinyl retrofit windows go into old brick veneer without addressing wall flashing, summer downpours send water around the jamb. The damage shows up as peeling paint or drywall stains years after the install.
- Slab movement knocking frames out of square. Expansive clay under San Antonio shifts 1/2 to 3/4 inch seasonally. In older suburbs like Castle Hills and Terrell Hills, replacement windows often need custom shim packs and extra jamb depth just to stay square.
One of our Stone Oak projects sticks with us. We replaced failed insulated glass units in a 1996 home where the original aluminum frames had fogged from seal failure. The homeowner didn’t want to trigger HOA architectural review, so we swapped in PGT low-E double-hung units with a 0.25 SHGC, re-used the existing jambs, and added new jamb liners to restore smooth operation. The windows cut afternoon heat gain noticeably, and the HOA never blinked. That’s what local knowledge buys you.
Pricing for Window Replacement in San Antonio, TX
Window replacement in San Antonio typically runs $550 to $1,300 per window installed. Glass-only repair runs $180 to $450 per window. Insert replacements, where the new window fits into the existing frame, land at the lower end. Full-frame replacements, which require pulling the old frame, re-flashing, and re-trimming, land at the higher end. Impact-rated PGT or CGI units for hail-prone areas add $150 to $350 per window over standard low-E. HOA-required specifications, like matching sightlines in Cibolo Canyons or architectural review fees in Stone Oak, can also shift the number. Every Juniper quote is a written line-item price, and the number we give is the number you pay. Call (903) 488-7019 for a free estimate, and you’ll see exactly what your windows will cost before you agree to anything.
We Also Serve Cities Near San Antonio
Beyond our work across San Antonio, our crews regularly handle Window Replacement projects in Converse and Floresville, where the same heat, humidity, and hail take their toll on older aluminum and wood windows. If you’re in either of those areas, the process is the same: written price, live arrival time, 365-Day Done Right Promise. Call (903) 488-7019 and we’ll schedule 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 About Window Replacement in San Antonio
Yes, in most cases. Both Stone Oak and Cibolo Canyons have architectural review committees that require submission of window specs, glass package details, and sometimes material samples before work begins. Juniper handles this paperwork for you and we’ll help you spec windows that match existing sightlines so approval is straightforward. The review process usually adds two to four weeks, so plan ahead. Call (903) 488-7019 and we’ll tell you what your specific HOA requires.
In most Helotes homes with 1990s aluminum frames, you can replace just the glass unit if the frame is still square and the hardware operates. That runs $180 to $450 per window. If the aluminum has pitted, the frame is out of square from slab movement, or the windows are single-pane, replacement becomes the better long-term value. We’ll tell you honestly which one applies to your house, and we’ll give you a written price either way before you commit.
No. Builder warranties on 1980s San Antonio homes covered structural elements for 10 years and components for 1 to 2 years. Those lapsed decades ago. Unless your home was built within the last 10 years and you have an active window manufacturer warranty on the original units, replacement doesn’t void anything. What matters more is the flashing detail: a sloppy replacement that leaks around the jamb causes damage no warranty covers. We re-flash every full-frame replacement properly, and our 365-Day Done Right Promise covers parts and labor for a full year.
Casement windows seal tighter and are better for San Antonio heat. They press against the frame gasket when closed, so they leak less air than double-hungs, which have sliding joints that can gap over time. Casements also capture more airflow when open, which helps on spring and fall nights. Double-hungs have one advantage: you can wash both sashes from inside, which matters on two-story Stone Oak homes. Both perform well with a low-E glass package and a 0.25 SHGC or lower. We’ll show you pricing for each in writing.
Yes, in most cases. Full-frame replacement of steel casement windows in Alamo Heights requires cutting the old frame anchors and installing a new wood or composite buck and clips into the existing rough opening. The stucco is usually cut back only a few inches around the perimeter, then patched and matched. We protect the interior and clean up every day. If you want impact-rated replacements that keep the original sightlines, we can spec a steel-replica system or a narrow-frame PGT or CGI product that fits the rough opening without enlarging it. Call (903) 488-7019 for a written quote.
Ready for a written price? Call (903) 488-7019 and we’ll schedule your free estimate. A real person will answer, and you’ll have a number in writing before anything starts.
Written by Sean Mackey, Owner at Juniper Windows San Antonio, serving San Antonio and surrounding areas.
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.