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 Installation Across Kirby
Window installation in Kirby, TX typically runs $450 – $1,850 per window depending on size, frame material, and whether we’re doing a simple insert or a full-frame replacement with permit work. You won’t find vague pricing here. Juniper Windows San Antonio gives every Kirby homeowner a written price before any work starts, and we answer the phone live 24/7 at (903) 488-7019. If you live in a 1960s brick-veneer ranch off Ackerman Road or a post-WWII frame home near Loop 410, we know your walls, your window openings, and the surprises they hide.
Kirby’s housing stock isn’t like the newer subdivisions going up around San Antonio. These are compact single-story homes from the 1950s through the 1970s, built when single-pane aluminum was standard and energy codes didn’t exist. We’ve worked on hundreds of them. When our crews open up an original window opening in Kirby, we expect what’s behind it: undersized headers, rotted jambs, missing flashing, and the occasional permit correction the city requires once the rough opening is exposed. Our process accounts for that from the first inspection, so your quote doesn’t move on you mid-project.
Why Juniper Windows San Antonio Is Kirby’s Preferred Window Installation Company
We’re the Window Installation team Kirby homeowners call when they want a real price, not a hand-wave estimate. Sean Mackey leads our crew, and the standard he sets is simple: inspect the opening, document what we find, write the price, and get your approval on paper before a single screw turns. That matters in Kirby because the homes here were built before modern flashing and header requirements, and a sloppy installer will hide what they find because they don’t want the quote to move. We’d rather show you the rotted jamb and fix it right.
Our Kirby customers consistently tell us the same thing: the written price held, the crew showed up when they said they would, and the before-and-after photos meant no surprises. We roll a uniformed, background-checked crew to every Kirby job, and you’ll get a live arrival time you can track from your phone. That’s the Relay Visibility Guarantee, and it’s how every job runs. Founded in 2001 as part of the Relay Home Co. family, Juniper has more than two decades of installations behind the brand, and every single one is covered by the 365-Day Done Right Promise: if the work isn’t right, parts and labor are covered in writing for a full year.
Bay Window Installation in Kirby
Bay window installation in Kirby typically costs $2,800 – $6,500 for a full three-panel bay with seat and roof, and most of the older ranch homes we work on have never had one framed correctly to begin with. A bay window in Kirby isn’t a straightforward swap; it’s a structural addition that changes the wall’s load path, and on these shallow 2×4 frames from the 1960s, we often have to install a beefier header than code required when the house was built. You’ll want this done by a crew that understands Kirby’s specific combination of brick veneer, hardboard siding, and aging framing.
Framing and Header Corrections
When we pull an old double-hung or a jalousie unit from a Kirby ranch to make room for a bay, we open the wall and check exactly what’s carrying the load. Undersized headers are common in 1950s – 70s construction, and once the rough opening is exposed, Kirby’s current residential code often requires an upgrade. We write that correction into your contract as an allowance, with photo documentation, so nothing gets billed without your written approval.
Seat, Roof, and Moisture Control
A bay window juts out from the house, which means it needs its own small roof and a properly flashed seat. On Kirby homes with hardboard siding, trapped moisture behind window flanges is a frequent problem we uncover during bay retrofits. We replace rotted sheathing where needed and install the bay with continuous flashing so the new unit sheds water instead of feeding it into the wall.
Window Contractor in Kirby
A window contractor in Kirby should know exactly what a 1963 brick-veneer ranch off Ackerman Road looks like inside the wall before they quote you a number. Juniper Windows San Antonio has been running crews into Kirby long enough to know what waits behind original aluminum frames: humidity-weakened jambs, missing flashing, and shallow wall depths that complicate any upgrade to an insulated unit. A full-frame replacement in Kirby runs $850 – $1,850 per window, while an insert into a sound existing frame usually falls between $450 and $900. We’ll confirm which route applies to your home during the estimate.
Photo-Documented Change Orders
On that Ackerman Road job, our crew pulled an original aluminum double-hung and found the jamb rotted through from decades of humidity weeping through failed caulk. We reframed the rough opening with pressure-treated lumber, installed a PGT vinyl low-E double-hung with an impact certification rating, and wrote the repair into the contract only after the homeowner approved our photo-documented change order. That’s the only way we work in Kirby: you see what we see, and you approve every added line item before we touch it.
Permit and Code Compliance
Kirby’s current residential code applies to structural changes around window openings, and a full-frame replacement that alters the opening triggers a permit. We pull it. We also schedule the inspection and make sure the work passes before we call the job done. An insert replacement into an existing, unmodified opening typically doesn’t require a permit, but we’ll tell you up front which category your project falls into.
Trusted Brands We Service in Kirby
We stock and install ECO Window Systems, Mr-Glass, and ViewLux products for Kirby homeowners, which means you’re not waiting on a special order from a distributor two states away when you need a specific sash or hardware match. PGT and Therma-Tru round out the lines we carry, and our Kirby customers most often choose ECO for budget-conscious retrofits and ViewLux for tighter sightlines on mid-century ranch styles. If you have a specific brand in mind, call (903) 488-7019 and we’ll confirm availability for your rough opening size.
Common Window Installation Problems We See in Kirby Homes
- Original jalousie louvers on porch enclosures: These look charming until removal. The aluminum tracks are frequently corroded from decades of humidity, the glass is cracked, and what’s left behind is an open wall condition that doesn’t meet current code. We replace them with insulated vinyl units sized for the shallow wall depth.
- Rotted jambs from failed caulk: South Texas heat and Kirby’s high humidity work on caulk until it fails, then moisture weeps into the jamb for years. By the time the window is replaced, the wood often needs reframing, not just a new unit.
- Shallow 2×4 wall cavities: Kirby’s 1950s – 70s ranches were framed when windows were thin and flanges were an afterthought. A modern insulated unit is deeper, which means flashing and head heights sometimes don’t meet Kirby’s current code without a correction the homeowner never expected.
- Hardboard siding trapping moisture behind flanges: Hardboard absorbs water, and when it sits against a window flange, rot spreads behind the siding where you can’t see it. A simple insert installation can turn into a sheathing and jamb replacement once we expose the flange. We carry a written allowance for this in our Kirby contracts.
Pricing for Window Installation in Kirby, TX
Here’s what Kirby homeowners actually pay. Inserts into sound existing frames run $450 – $900 per window. Full-frame replacements, which include the permit, reframing where needed, and new interior and exterior trim, run $850 – $1,850 per window. Bay and bow windows run $2,800 – $6,500 for the full unit with seat and roof work. The variables that move a Kirby quote are straightforward: whether we find rotted framing once the opening is exposed, whether the city requires a header upgrade, and whether hardboard siding needs replacement around the flange. We write allowances for each of these into the contract, so you see the worst case on paper before we start. Call (903) 488-7019 to schedule a free estimate with a written line-item quote.
We Also Serve Cities Near Kirby
Our crews run from Kirby into San Antonio, Fair Oaks Ranch, Windcrest, and Leon Valley on a regular schedule. If you’re in a neighboring city and spending the day comparing window contractors, you can start with our Window Installation in Kirby pricing above and call (903) 488-7019 for a quote specific to your address.
Serving Kirby, TX - Our Local Coverage Area
We’re based in the Kirby 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 Kirby
The two most common are rotted jambs and undersized headers. Kirby’s humidity weeps through failed caulk on original aluminum frames, rotting the wood behind them over decades. And many of these homes were built before modern header requirements, so once the rough opening is exposed, Kirby’s current code often triggers a header upgrade. We inspect first, document with photos, and write allowances into your contract so the quote doesn’t move without your approval. Call (903) 488-7019 for an inspection.
Yes, if the rough opening changes in size or the structural framing around it is altered, Kirby requires a permit. Replacing the jalousie with an insulated unit of the same rough opening size usually qualifies as an insert and skips the permit. We’ll determine which applies during the estimate and handle the permit if it’s needed.
We replace the insulated glass unit (IGU) inside the existing sash. For a south-facing window that’s baked all summer, the seal failure is usually in the IGU itself, not the whole frame. A new IGU runs roughly $180 – $380 installed in Kirby, depending on dimensions and low-E coating.
They’re not required, but they do make sense for south-facing and west-facing windows that take Kirby’s full afternoon sun and the occasional severe thunderstorm. Impact-rated glass resists wind-borne debris and adds a layer of security on older ranch homes. For Kirby, the bigger energy win is usually low-E coatings and insulated frames. Call (903) 488-7019 for a recommendation on your specific elevations.
We stop, document the crack with photos, and give you a written repair price before proceeding. Brick veneer cracks during window removal are rare in Kirby, but when they happen, we repair the mortar joint or replace the affected brick before setting the new unit. You approve the added cost in writing first.
Written by Sean Mackey, Owner at Juniper Windows San Antonio, serving Kirby with written pricing and the 365-Day Done Right Promise.
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.