New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows Houston 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
Trusted Window Installation for Houston Homeowners
Window installation in Houston is not a one-size-fits-all job. Between the gulf humidity, the summer heat that pushes attic temperatures past 140 degrees, and the spring storm fronts that roll through neighborhoods like Katy and Cypress, the window you install has to earn its place on the wall. Westlight Windows Houston has been doing this work since 2009 as an independently owned and operated Kingswell location. Owen Satterfield runs our Houston team, and the standard he holds is simple: a written price before any work starts, a real arrival window, a clean job site, and a written guarantee on every single job. If you need someone to look at your windows today, call (325) 326-4211 and a live person picks up, day or night.
Casement Windows
Casement Windows are hinged on one side and crank open outward like a door, which makes them the tightest-sealing operable window you can put in a Houston home. When the wind presses against the sash, it pushes the weatherstripping tighter instead of forcing air through gaps. That matters in August when your air conditioner is already running fourteen hours a day. We install casement windows from ES Windows and CWS most often here, matched to the opening size and the exposure. A single casement window replacement in Houston typically runs $550 to $1,100 installed depending on size, glass package, and framing condition. You get a written line-item price from Owen’s team before any work begins, and that number does not change at the door.
Crank Mechanism and Hardware
The crank is the wear point on any casement window. Salt air near Galveston Bay and constant humidity inland both accelerate corrosion on cheap hardware. We install casements with stainless steel operator arms and multi-point locking systems on request, which matters more than most homeowners realize until they try to open a window that has swollen shut.
Ventilation Without Leaks
Casements catch side breezes better than sliding windows because the sash itself acts like a scoop. In Houston neighborhoods like The Heights or Montrose, where older homes often have poor cross-ventilation, a pair of casements on opposite walls changes how the house breathes. And because the seal is compression-based, you do not trade that airflow for drafts when the window is closed.
Double Hung Windows
Double Hung Windows have two sashes that slide vertically, so you can open the top, the bottom, or both. They are the most common window style in Houston’s older ranch homes and two-story traditionals, which means most of our installation work in places like Spring Branch and Meyerland involves replacing tired double hungs with modern versions that actually stay open and seal shut. A standard double hung window replacement in Houston runs $400 to $900 per window installed for vinyl frames, more for wood-clad or custom sizes. Westlight installs them with a full frame or insert method depending on what the existing rough opening allows, and the written quote reflects that before we ever touch the house.
Tilt-In Sash for Cleaning
Second-story windows should not require a ladder and a prayer to clean. Modern double hungs tilt inward, so you can wash both sides of the glass from inside the room. The old aluminum double hungs all over Houston’s 1960s subdivisions never did that, and homeowners who have lived with them for twenty years notice the difference immediately.
Balances and Spring Systems
The balance system is what makes a double hung stay up when you raise it. Cheap coil balances fail in five to seven years under Houston’s heat-and-humidity cycle, and failed balances are why so many older windows slam shut. We install double hungs with block-and-tackle or constant-force balances rated for repeated daily use, and the 365-Day Done Right Promise covers that hardware if it fails within the guarantee period.
Vinyl Windows
Vinyl windows are the workhorse of Houston window installation, and they are what we recommend for most single-family homes where the homeowner wants performance without the price of fiberglass or wood-clad. A quality vinyl window with low-e glass installed in a typical Houston home runs $350 to $750 per opening, and that includes full foam insulation around the frame where the wall cavity allows it. Westlight carries vinyl lines from ECO Window Systems and Mr-Glass, both of which hold up to the UV exposure and humidity we see here. The frame material matters, but so does the installation: a great vinyl window installed with gaps around the rough opening will leak air and water within two seasons. Our home service standards mean every vinyl install gets shimmed square, insulated, and flashed to shed water away from the wall.
Low-E Glass and Houston’s Climate
Low-e glass is a thin metallic coating that reflects radiant heat back outside in summer and keeps interior heat inside during the rare Houston freeze. It is standard on the vinyl windows we install now, and it should be. A west-facing wall in Houston absorbs punishing afternoon sun, and low-e is the difference between a room that holds 78 degrees and one that climbs to 84 every evening.
Frames That Do Not Rot
Houston is wet, and wood frames absorb that moisture. Vinyl cannot rot, cannot rust, and never needs painting. For a homeowner who has already replaced one rotten wood window frame and does not want to do it again, vinyl is the honest answer, and it is usually the most affordable one too.
Picture Window
A Picture Window is a large fixed pane that does not open, built to frame a view and flood a room with natural light without the sightlines of sashes and frames. The name refers to the fact that you are essentially getting a wall-sized picture of your backyard, your street, or the Houston skyline. Fixed glass is also the most energy-efficient window type because there are no moving parts to leak air, so the seal is the only thing that can fail. Picture windows in Houston run $500 to $1,800 installed depending on square footage, glass package, and whether we are cutting into a new opening or replacing an existing unit. Owen’s team has installed picture windows from CWS and ECO Window Systems in living rooms, stairwells, and kitchen breakfast nooks across the Houston area, and the written quote includes the framing work if the structural opening needs to change.
Tempered Glass Requirements
Houston building code requires tempered safety glass in fixed windows that sit low to the floor or adjacent to doors. We handle that compliance as part of every picture window installation, pulling permits where required and passing inspection the first time. You should never have to think about glass safety codes, but we do, and the written price reflects the correct glass package before we order anything.
The View and the Light
The west light, the late-afternoon sun that pours through a good window, is the reason picture windows get installed in the first place. A fixed pane on a west wall gives you that warm light for years, but it also bakes the room without the right low-e coating. We spec picture glass based on which direction the wall faces, not just the square footage.
Bay Window Installation
Bay Window Installation is more than swapping glass. A bay window projects outward from the wall on a framed platform, which means the structural support under it, the roof or flashing above it, and the seating inside all have to work together. In Houston, flat roofs or shallow eaves over bays are common sources of leaks, and a bay that was installed fifteen years ago is often rotting from the inside out by now. Bay window replacement in Houston typically runs $1,800 to $4,500 installed depending on projection depth, seat width, and whether we are rebuilding the support deck. Westlight handles bay window installation as a full project: engineered support, new flashing, proper insulation, and correct glass for each of the three or five panes. This is not a window-and-go job, and our Window Installation in Houston process reflects that from the first measurement to the final inspection.
Seat Board and Support Deck
The seat board on a Bay & Bow Window is the flat surface most homeowners treat as a plant shelf. If that board sags or the support brackets rust out, the whole bay shifts and the glass seals fail. We inspect the existing support structure before quoting any bay window work, and if it needs rebuild, that work is in the written price as a separate line item, not a surprise add-on later.
Flashing Above the Bay
Water intrusion over a awning or hopper window usually comes from above, not through the glass. We flash and seal the roof intersection above every bay we install, with extra attention on Houston’s heavy thunderstorm downpours. A bay window should shed water like any roofline does, and ours do.
Window Contractor
A Window Contractor is the person or company you hire to handle the whole job, from measuring to ordering to cutting open the wall to final trim. In Houston, the window contractor you choose determines whether the project has a written scope, whether permits get pulled, and whether the crew that shows up is the same one you talked to. Westlight Windows Houston is an independently owned and operated Kingswell location led by Owen Satterfield, and every job follows the Kingswell Way: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, put the guarantee in writing, and come back if it fails. A window contractor should carry insurance, pull permits where Houston code requires, and hand you a written warranty on the work itself. Ours does all three, with the 365-Day Done Right Promise on every installation.
Why the Contractor Matters More Than the Window
A mid-grade window installed correctly outperforms a premium window installed carelessly. Water management, insulation, square framing, and proper flashing are what keep a Houston window from leaking and fogging. Homeowners in areas like Humble and Pasadena have called us after a low-bid contractor walked away from windows that leaked the first spring, and the fix is always the same: tear out, re-flash, reinstall.
What to Ask Before You Sign
Ask for the written price before any work starts. Ask whether the crew is background-checked and uniformed. Ask what happens if the window fails in year one. If a contractor will not answer those three questions in writing, keep looking. Westlight answers all three in the written estimate and in the Kingswell Guarantee handed to you at job completion.
Window Installers
Window Installers are the people on site doing the cutting, shimming, flashing, and finishing. At Westlight Windows Houston, the installers who arrive at your door are background-checked, uniformed, and trained specifically on the eight manufacturer lines we carry, so the same crew that installs a double hung today can correctly set a PGT impact window in Friendswood next week. Our window installers work under Owen Satterfield’s direct supervision, and the quality bar is the same on every job: clean site, square opening, plumb frame, no shortcuts. Most single-window installations in Houston take four to six hours on site, with the written arrival window set in advance and confirmed by a live person when you call (325) 326-4211.
Training and Background Checks
You should know exactly who is walking through your door. Every Westlight installer passes a background check before their first day, wears a uniform, and carries company ID. The crew lead on your job is the person who measured, the person who ordered the window, and the person who signs the completion paperwork.
Site Cleanup as a Standard
Old glass, caulk tubes, foam scraps, and frame splinters get hauled away. The work area is vacuumed and wiped down before we leave. Leaving the place cleaner than we found it is not a bonus add-on; it is one of the five Kingswell Way commitments on every single project, and it is written into the job promise we hand you.
Brands We Service
Westlight Windows Houston installs from eight manufacturer lines, which means we match the product to the job instead of the other way around. CWS windows come out of our inventory for homeowners who want impact-rated protection at a reasonable price point, and we have installed them from Dickinson to Tomball. ES Windows are our go-to for custom sizing and elevated aesthetic on mid-century and contemporary Houston homes, particularly where the homeowner wants a slimmer frame profile than standard vinyl offers.
ECO Window Systems delivers the energy-efficiency numbers Houston homeowners ask about most, with low-e and argon gas packages that make a measurable difference on a west-facing wall near Deer Park. Mr-Glass rounds out the selection for value-focused replacements where the goal is a solid, reliable window without paying for features the house does not need. If you have one of these brands already installed or you are comparing brands for a new project, call us for a written quote on the right match for your home.
Signs You Need a Pro Right Now
- Fogged glass between the panes. A failed seal means the insulating gas has escaped and the glass will never perform like it did. The fix is replacement, not waiting.
- Condensation or frost on the inside glass surface. This usually means the window is leaking warm, humid Houston air into the wall cavity, not just the room. Left alone, that moisture rots framing.
- Visible daylight around the sash. If you can see light through a gap in a closed window, water can get through the same gap. In a Houston thunderstorm, that is an active leak waiting to happen.
- Windows that rattle in the wind or will not stay open. Failed hardware and warped frames are structural problems, and they only get worse. A window that slams shut on someone’s fingers is a genuine safety issue.
- Soft drywall or peeling paint below the window. Water has already entered the wall from above or behind the opening. The window has to come out to find the source, and delaying turns a window job into a wall rebuild.
Our Process, Step by Step
- 1
Call and talk to a person. Dial (325) 326-4211 and a live human answers, 24 hours a day. Describe what is happening, and we will set a measurement visit during a window that works for you.
- 2
We measure and assess. Owen or a senior crew lead measures every opening, inspects the existing flashing and framing, and determines whether the project is a straightforward replacement or needs structural work. We check for moisture intrusion behind the trim while the window is still in place.
- 3
You get a written price. The quote comes in writing, line by line, with the product, the labor, the permit fees, and any framing repairs itemized. That price does not change at the door, and it includes the Kingswell Guarantee terms.
- 4
We install on the scheduled day. The crew arrives in uniforms, protects the work area, removes the old window, sets the new one square in the opening, insulates, flashes, and trims. The site is cleaned before we leave.
- 5
You get the written guarantee. At completion, you receive the 365-Day Done Right Promise in writing. If anything is not right within the guarantee period, Westlight comes back and fixes it at no charge. That is the promise, on paper, every time.
How Much Does Window Installation Cost in Houston?
A typical window installation in Houston runs $350 to $1,100 per window for standard vinyl double hungs or casements, with picture windows from $500 to $1,800 and 3-Panel Sliding (3-Lite Roller) Windows from $1,800 to $4,500 because of the structural work involved. The biggest cost factors are the window type, the glass package, the frame material, and whether the existing rough opening is square and dry or needs framing repair before the new unit goes in. Older homes in neighborhoods like The Heights often carry higher labor costs because the rough openings are not standard sizes and the surrounding trim is original. You avoid overpaying by getting a written line-item quote, checking that permit fees and disposal are included, and confirming what the warranty covers in year one and beyond. A free estimate from Westlight Windows Houston includes all measurements, the written price, and the Kingswell Guarantee terms before you commit to anything.
| Window Type | Average Installed Cost in Houston |
|---|---|
| Vinyl Double Hung | $400 – $900 |
| Casement Window | $550 – $1,100 |
| Picture Window | $500 – $1,800 |
| Bay Window | $1,800 – $4,500 |
Our Service Area Near Houston
Westlight Windows Houston serves homeowners across the Houston metro, including Window Installation in The Woodlands, Window Installation in Sugar Land, Humble, Pasadena, Friendswood, Dickinson, Santa Fe, Tomball, San Leon, Deer Park, and New Territory. Most of our Houston-area measurement visits happen within two to four business days of your call, with installation scheduled after the window is ordered and arrives. We cover the entire metro without subcontracting to unknown crews.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Window Installation in Houston
Window installation is the process of measuring the existing rough opening, removing the old window and trim, preparing or repairing the framing, setting the new window square and level, insulating around the frame, flashing to keep water out, and finishing with interior and exterior trim. The installation method varies by window type and existing wall condition. Westlight Windows Houston handles full-frame and insert installations in Houston.
Most single-window installations take four to six hours on site, from arrival to final cleanup. A whole-house project of fifteen to twenty windows typically runs two to three days depending on framing conditions and whether permit inspections are required. Bay windows and any project involving structural repair take longer, and the timeline is included in the written quote before work begins.
Window installation in Houston runs $350 to $4,500 per window depending on type, size, glass, and framing condition. Standard vinyl replacements sit at the lower end, while bay windows and impact-rated units cost more because of the structural and product demands. Call (325) 326-4211 for a free written estimate with exact line-item pricing for your home.
Yes. We install impact-rated windows from PGT and CGI, along with CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. The eight manufacturer lines we carry mean the right product gets matched to your Houston home’s exposure and code requirements, not the other way around.
Our phone lines are staffed by a live person 24 hours a day, 7 days a week, so if a window is broken or the opening is exposed after a storm, call (325) 326-4211 and we can schedule a same-week emergency response. Window replacement is a planned installation with a written quote, but we will always answer the phone when you need us.
Every Westlight Windows Houston job includes the 365-Day Done Right Promise in writing: if the installation is not right within the guarantee period, we come back and fix it at no charge. The Kingswell Guarantee also covers a written price before work starts, a committed arrival window, and a clean job site.
Clear a three-foot working space inside and outside each window, remove curtains or blinds, and take down pictures or shelves near the work area. We protect floors and furniture with drop cloths and move the old windows out for disposal. The crew will walk through the house before starting so nothing is a surprise.
Schedule Your Window Installation Service in Houston Today
If you are tired of windows that fog, leak, stick, or bake the south side of your house every afternoon, call Westlight Windows Houston at (325) 326-4211 for a free, no-obligation estimate. Owen Satterfield and our Houston crew will measure, write the price, and stand behind the work with the Kingswell Guarantee and the 365-Day Done Right Promise. A real person answers the phone, day or night.
Written by Owen Satterfield, Owner at Westlight Windows Houston, serving Houston since 2009.
Six Reasons Homeowners Choose Westlight Windows Houston
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.