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
Fast, Reliable Window Installation Across San Antonio
Window installation in San Antonio typically runs $550 to $1,850 per opening for standard sizes, with impact-rated and custom historic-home work landing between $1,200 and $3,400 per window. Most single-room projects wrap up in one to two days, while whole-home replacements across a 1970s brick veneer or a Monte Vista bungalow take three to five working days. We’re the local Window Installation crew that shows up with a locked written price, a live arrival time you can track, and a 365-Day Done Right Promise in hand. Call (903) 488-7019 and a real person answers, 24/7.
Why Juniper Windows San Antonio Is San Antonio’s Preferred Window Installation Company
We’re built around the kind of transparency San Antonio homeowners on the northeast side, in Alamo Heights, and out toward Stone Oak have learned not to expect from window contractors. Every job starts with a written price before a single screw turns. Not an estimate range. A number. If the work isn’t right, we fix it for a full year, parts and labor, in writing.
Our crews know the difference between a King William bungalow and a 1980s brick veneer off Bandera Road. That matters when an inspector checks design pressure ratings or when a homeowner asks why their builder-grade aluminum windows fog up every February. Sean Mackey leads the team, and every tech who walks through your door is background-checked, uniformed, and accountable to the Relay Visibility Guarantee: live arrival time, before-and-after photos, and a digital invoice you can pay from your phone.
We stock and service PGT, Mr-Glass, and Therma-Tru product lines specific to what San Antonio’s climate demands. No voicemail maze when you call. No callback queue. Just a person who can talk through casement operators, U-factors, and inspection requirements without talking down to you.
Casement Windows in San Antonio
Casement windows in San Antonio are the right call for older homes with steel casements that have rusted shut, or for any homeowner who wants a window that seals tighter than a sliding sash under our hot, humid summers and sudden downpours. They hinge on the side and crank outward, so the entire sash presses against weatherstripping when closed.
Standard casement installation here runs $750 to $1,650 per opening depending on size, frame material, and whether the rough opening needs rebuilding, which happens constantly in historic limestone construction. Impact-rated casements from PGT add $400 to $900 per window for the laminated glass and reinforced hardware.
Rusted Steel Casement Replacement
Along Crofton Avenue in Alamo Heights and around Fort Sam Houston, we pull out original 1940s and 50s steel casement windows with broken operators and seized hinges. Our crew replaces them with units that actually open, seal, and meet today’s wind-load code. The old frames get carefully pulled so the limestone openings stay intact and the new jamb extensions sit square.
When Homeowners Choose Casements
Casements make sense over a kitchen sink, in a stairwell, or anywhere you want a clear, unobstructed opening with maximum airflow. They also outperform double hungs on air leakage, which matters when your AC unit fights San Antonio heat from May through October. We install them with a written price before work starts.
Double Hung Windows in San Antonio
Double hung windows in San Antonio show up most often in 1970s through 1990s brick veneer homes where the original single-pane aluminum frames have fogged, warped, or simply stopped locking. Both sashes slide vertically, which makes them the favored replacement for bedrooms, front elevations, and anywhere a classic look matters.
Expect to pay $550 to $1,350 per double hung in San Antonio for a standard vinyl or thermally broken aluminum unit, including tear-out, install, and trim. Upgrading to a PGT or Mr-Glass impact-rated double hung adds $350 to $800 per opening. If the home sits within a mile of Bexar County’s eastern boundary, that upgrade isn’t optional, it’s the code.
Failed IGU Replacement in Northwest Suburbs
The most common call in Helotes and Stone Oak is fogged builder-grade aluminum double hungs with failed insulated glass units. We replace the entire window, not just the sash, so the frame’s thermal performance actually matches the new glass. Low-E coating and the right SHGC rating come standard on every job.
Historic Character, Modern Performance
In neighborhoods like Monte Vista and King William, homeowners want a double hung that keeps the original sightlines without giving up energy efficiency. Wood and wood-composite double hungs from Therma-Tru let us match the existing trim profile while delivering modern U-factors and air sealing.
Trusted Brands We Service in San Antonio
We install PGT, Mr-Glass, and Therma-Tru products because they carry the Miami-Dade NOA and Florida Product Approval ratings San Antonio’s wind-borne debris inspections require near the eastern boundary. PGT makes impact-rated casements and double hungs that handle laminated glass and reinforced frames. Mr-Glass builds heavy-duty sliding and fixed units. Therma-Tru handles the wood and composite side. We stock local parts for these lines so a warranty part or hardware replacement doesn’t mean waiting two weeks on a distributor. Fast turnaround, documented photos, and a written price on every order.
Common Window Installation Problems We See in San Antonio Homes
- Rot hidden behind old vinyl inserts. A cheap vinyl insert shoved into a 1970s brick veneer opening leaves the original jamb flashing in place. After the first heavy downpour, homeowners find water stains on interior drywall and rot that was invisible before the new window went in.
- Double hungs that fail wind-borne debris inspection. Suburbs near Fort Sam Houston trigger a code requirement many contractors ignore. Homeowners get a double hung installed only to learn the glass lacks large-missile rating, and the fix is a retroactive laminated glass order or a full replacement.
- Fogged IGUs with the wrong glass package. Builder-grade aluminum windows from the 1990s fail in Stone Oak and Helotes every winter. Some replacements use low-E glass that still lacks the SHGC rating San Antonio’s energy program requires, so the homeowner misses the rebate and the insurance premium credit.
- Rusted steel casements that won’t open. Original 1940s steel casement windows in Alamo Heights often have broken operators and rusted frames. We replace the whole unit rather than patch a crank that’ll fail again within a season.
Pricing for Window Installation in San Antonio, TX
Here’s what we tell San Antonio homeowners before we ever send a crew: standard double hung installs run $550 to $1,350 per window. Casements run $750 to $1,650. Impact-rated versions add $350 to $900 on top of the base unit. The big cost drivers are whether the rough opening needs rebuild work due to shifted brick veneer or irregular limestone construction, and whether the home requires wind-borne debris protection under the local code. A compliant quote includes permit fees, proper flashing, documented design pressure verification, and a final wind mitigation inspection report. A cheap quote often leaves all of that out. Call (903) 488-7019 for a free, written, line-item quote. No change orders, no surprise at the door.
We Also Serve Cities Near San Antonio
Beyond our core San Antonio service area, our crews regularly handle window installation in Converse and Floresville. Same written pricing, same Relay Visibility Guarantee, same local techs. If you’re in one of those communities, call us and we’ll schedule a free estimate with a live arrival time you can track.
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 Installation in San Antonio
San Antonio’s adopted 2015 International Residential Code requires exterior window openings to meet a design pressure of at least DP 35. That means the window and its frame, anchor, and flashing must withstand wind loads measured at 35 pounds per square foot. We verify this on every install and document it with photos. Call (903) 488-7019 for a free quote that includes DP 35 verification.
It depends on whether your home sits within one mile of Bexar County’s eastern boundary, which the code designates as a wind-borne debris region. Homes in Helotes and Stone Oak generally do not fall inside that boundary, so impact glazing is optional there. Homes near the eastern edge of the county do. We check your specific address before quoting. Call (903) 488-7019 and we’ll tell you exactly what applies.
Yes. Monte Vista sits inside a historic district, and inspectors review window work for consistency with the district’s architectural standards. The irregular limestone rough openings common in those homes also mean a sloppy install can fail on square, plumb, and level. We rebuild openings with pressure-treated jamb extensions and document the work for inspection. Free estimates: (903) 488-7019.
Documented wind mitigation, meaning your installer verifies design pressure and, where required, impact ratings, gives your insurer evidence the home meets current wind-load standards. That can qualify you for premium reductions on windstorm coverage. We provide before-and-after photos and a written verification record on every install. Call (903) 488-7019 to get a quote that includes this documentation.
Failed IGUs in builder-grade aluminum windows from the 1990s, recognizable by fogging between the panes. The original seals break down from years of San Antonio heat and UV exposure, and the glass loses its insulating gas. We replace the whole window with properly rated low-E glass that meets SHGC requirements. Call (903) 488-7019 for a free estimate.
Written by Sean Mackey, Owner at Juniper Windows San Antonio, serving San Antonio and surrounding communities.
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.