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 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 Replacement Across Houston
Window replacement in Houston means dealing with two very different realities: inland bungalows from the 1920s and coastal subdivisions built to Miami-Dade wind codes. A 1981 aluminum slider in Sharpstown doesn’t need the same product as a Clear Lake picture window facing Galveston Bay. We’ve been installing windows across this city since 2009, and we stock products for both ends of that spectrum. Our crews know the Heights, Meyerland, Kingwood, and the neighborhoods along I-45 and the Beltway. Call (325) 326-4211 and you’ll get Owen Satterfield’s team on the line: a real person who can talk through what your house actually needs.
Why Westlight Windows Houston Is Houston’s Preferred Window Replacement Company
We’re an independently owned and operated Kingswell location, and we run every job the Kingswell Way. That means a written price before any work starts, a real arrival window we actually honor, a job site left cleaner than we found it, and a written guarantee handed to you when the work is done. Those aren’t slogans. They’re four promises on every single project, and the 365-Day Done Right Promise backs them: if something isn’t right within the guarantee period, we come back and fix it at no charge.
Houston homeowners have told us what went wrong with past contractors: no-shows, door-step price revisions, and warranty claims that went unanswered. So we work differently. Our technicians are background-checked and uniformed. You’ll know exactly who is walking through your door. And when you call about a quote, a follow-up, or an emergency after a storm, a live person answers. 24 hours a day, 7 days a week. No voicemail tree, no chatbot.
We’ve replaced windows from Friendswood to Humble, and our crews know Houston’s quirks: the humidity that rots unflashed jambs in Meyerland, the afternoon sun that bakes west-facing Low-E glass north of the Katy Freeway, and the hail that finds every weak seal in Kingwood. That’s local knowledge, and it changes what we recommend.
Window Glass Replacement in Houston
Window glass replacement in Houston is the right fix when your sash, frame, and hardware are still solid but the insulated glass unit has failed, fogged, or cracked. Most single-pane glass replacements in Houston run $180 to $340 installed; double-pane low-e insulated units typically run $400 to $750, depending on size and coating. Here’s what that means in practice: if your 1990s vinyl window still opens and closes cleanly but there’s condensation between the panes, you don’t need a full tear-out. You need new glass, a new spacer, and a proper seal, and we can usually do that same day once we have the unit in hand.
Fogged and Failed Seals
Houston’s heat and humidity make seal failure more common here than almost anywhere else in Texas. When the seal around an insulated glass unit fails, humid air gets between the panes and condenses. You’ll see fog or a milky film. New glass with a low-e coating (a thin layer that reflects heat back into the room in winter and out in summer) can cut your cooling bill and make the room noticeably brighter.
Storm Glass and Impact Upgrades
If a storm cracked a pane, or if you’re in a wind-borne debris zone like Clear Lake or Seabrook, we can replace the glass with an impact-rated unit that carries a Miami-Dade NOA. That matters for your insurance documents and for what that window will actually survive in a Gulf storm. We’ll match the new glass to the existing frame and give you a written line-item price before any work starts.
Window Sash Replacement in Houston
Window sash replacement in Houston is the job when the moving part of the window, the sash that holds the glass, has warped, rotted, or broken while the surrounding frame is still square and structurally sound. This is common in the Heights and Montrose, where original wood double-hung windows from the 1920s and 30s were built to last but not always maintained. In Houston, a sash replacement typically runs $350 to $850 per sash installed, depending on wood versus vinyl and whether it’s single or double hung.
Wood Rot in Older Houston Homes
Houston’s subtropical humidity is hard on wood sash. The bottom rail of a double-hung window sits in the wet zone every time it rains sideways, which Houston does with enthusiasm. If the paint is peeling and the wood feels soft, the sash is failing. We can rebuild it, replace the balance system, and fit new weatherstripping so the window opens and closes like it should.
Balance and Hardware Replacement
A sash that won’t stay open, or slams shut, usually means the spiral or block-and-tackle balances have failed. We replace those as part of the sash job. That’s the honest difference between a window that looks fine from the street and a window that actually works every day in a Houston house.
Trusted Brands We Service in Houston
We carry and install eight manufacturer lines, and for Houston we lean heavily on products that handle heat and storm loads: ES Windows for high-performance aluminum, ECO Window Systems for energy-efficient vinyl, and PGT and CGI for impact-rated units that meet Miami-Dade NOA. We also install Mr-Glass and Therma-Tru doors. Because we stock these locally in Houston, a replacement sash or glass unit doesn’t have to sit on a freight truck for two weeks. Call us and ask which brand fits your house and your wind zone. We’ll give you a straight answer with a written price.
Common Window Replacement Problems We See in Houston Homes
- No citywide building code means wildly different install standards. Houston is unzoned, so a window that passes in Sharpstown would fail a Clear Lake wind-load inspection. The product has to match the exposure zone, not just the opening.
- 1970s and 80s aluminum frames with no flashing. These are everywhere in Meyerland and along Braeswood. After a strong thunderstorm, calls spike for water intrusion around jambs because those old frames were never flashed properly.
- Seal failure from heat and humidity. When an insulated unit fails, Houston’s wet air gets in and fogs the glass. This is the most common reason for glass-only replacement rather than a full tear-out.
- Non-impact windows in coastal exposure zones. Homes in Clear Lake and Seabrook sometimes have standard windows that would never pass a large-missile impact test. Replacing them with rated products earns the insurance documentation homeowners actually need.
Pricing for Window Replacement in Houston, TX
For a full-frame replacement in Houston, plan on $650 to $1,400 per window installed, depending on material, size, and glass package. Impact-rated PGT or CGI windows in coastal zones run higher: $1,100 to $2,200 per window because of the laminated glass interlayer and NOA documentation. Insert replacements into existing frames run lower: $500 to $950. What changes the price is the product, the wind zone, and whether we need to reframe a rotted opening. We give you a written line-item quote before any work starts. No revised invoice at the door. Ever. Call (325) 326-4211 for a free estimate, and we’ll walk through what your specific house needs.
We Also Serve Cities Near Houston
Our crews cover the full Houston metro, including Pasadena, Humble, Deer Park, and Friendswood. If you’re just outside the city limits and wondering whether we’ll come to you, the answer is yes. For more on our full Window Replacement services, or to see how we work across the Houston area, call us at (325) 326-4211.
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.
FAQs About Window Replacement in Houston
It depends on your wind zone, not on Houston as a whole. Homes in coastal exposure zones like Clear Lake and Seabrook are required to meet Miami-Dade NOA standards for large-missile impact, while inland homes in Sharpstown or the Heights can legally install standard insulated glass. If you’re near the bay, standard glass will fail a wind-load inspection and give you no insurance credit. Call (325) 326-4211 and we’ll check your specific address against the exposure zone map before you spend a dollar.
Miami-Dade NOA is the stricter of the two, requiring the window to survive a large-missile impact test with a 9-pound 2×4 fired at the glass, plus cyclic wind pressure testing. Florida Product Approval is broader and sometimes less stringent on missile impact. For Houston homes in wind-borne debris zones, an NOA number is what your insurance carrier and a building inspector will actually look for. We provide the full documentation with every impact-rated install, not just a verbal claim.
Yes, and the reason is the flashing, not the glass. 1980s aluminum frames in Houston were often installed without proper jamb flashing, so wind-driven rain gets behind the frame and into the rough opening. We see this constantly in Meyerland and along Braeswood after spring storms. Replacing the window with a flashed, weatherproofed opening, not just a new unit in the old hole, is what stops the water. Call us for a free inspection and we’ll show you exactly where the water is getting in.
In most cases, yes, but only if the install is documented with a Miami-Dade NOA or equivalent rating and the permit inspection is completed. Insurers in the Houston market routinely apply a wind mitigation credit for impact-rated windows on coastal exposure homes. The documentation is the key. If a contractor skips the inspection because Houston is unzoned, your claim later gets complicated. We pull the permit and hand you the paperwork.
Usually yes, if the sash and frame are still square and the hardware works. Glass-only replacement runs $180 to $750 depending on single versus double pane and whether you’re adding low-e. This is the smart move for Heights bungalows and older homes where you want to keep the original wood frame and character. If the frame is rotted or the window is failing as a complete assembly, we’ll tell you honestly, and a full-frame replacement may be the better long-term call. Call (325) 326-4211 for a free estimate and we’ll look at the actual window in person.
After a spring storm, our techs got a call from a homeowner in Meyerland whose 1982 aluminum windows were leaking around the jambs. We pulled the old unflashed frames and found rot in the rough openings. We reframed with proper flashing and installed PGT WinGuard impact-rated casements with a laminated glass interlayer and a Miami-Dade NOA. That house earned a wind mitigation credit on its next insurance renewal, and the windows haven’t leaked since.
If your windows fog, leak, or let Houston’s heat pour through the glass, call (325) 326-4211. You’ll get a real person, a straight answer, and a written price before any work starts.
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.