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
CGI Windows & Doors in Houston, TX | Westlight Windows Houston
We service CGI windows and doors across Houston as an independent provider, not a factory-authorized shop, which means we call problems like we see them. Houston’s unzoned, code-light building landscape means the same CGI slider can sit in a 1970s unflashed aluminum frame in Sharpstown or a fully taped coastal opening in Clear Lake. That changes how we survey, repair, and replace, and it’s why our crew carries both genuine CGI parts and marine-grade aftermarket options on every truck. Call (325) 326-4211 for a free estimate, and we’ll send someone who actually knows which CGI models hold up on the Gulf Coast.
Why Houston Residents Choose Us for CGI Service
We’ve torn into hundreds of CGI windows across Houston’s heat, humidity, and storm cycles, and we know which models hold up and which need reinforcement. Our techs carry the manufacturer’s spec sheet in their front pocket and actually read it before quoting a price, a habit that’s saved more than one homeowner from a patch that would have failed in twelve months. We are an independent CGI service provider, not manufacturer-affiliated or authorized, so when we tell you a repair is worth doing, it’s because the metal and glass tell us so, not because a factory rep told us to sell it.
Owen Satterfield owns Westlight Windows Houston. He grew up in Los Angeles, learned the trade at LATTC, and has been measuring, ordering, and installing windows and doors for close to two decades. His crew knows Houston’s housing stock from the Heights bungalows with original wood double-hungs to the 1980s Sharpstown ranches still running single-pane aluminum. When we show up for a CGI service call, we know the wall we’re working in, not just the window we’re holding.
Every job runs on the Kingswell Guarantee: a written price before any work starts, a real arrival window, a clean job site, and a written guarantee on the completed work. If a repair fails within the guarantee period, we come back and fix it at no charge. That’s not a slogan, it’s in writing, handed to you at job completion.
Common CGI Windows & Doors Problems We Solve in Houston
- Roller track corrosion on horizontal sliders in flood-prone neighborhoods. In Meyerland and other areas that take repeated water, CGI slider tracks corrode fast. We’ve seen rollers seize so badly the sash won’t move without a pry bar. We clean, replace rollers with corrosion-resistant units, and rebuild the track bed where erosion has eaten the metal.
- Thermal seal failure with fogging between panes. Houston’s UV and humidity cycling hammer early CGI double-pane units. The seal fails, moisture creeps in, and you’re looking at permanent fog between the glass. We replace failed insulated glass units with properly spec’d low-e glass, a thin coating that reflects heat back into the room in winter and out in summer.
- Weep hole clogging after heavy thunderstorms. When a strong line of storms rolls through Houston, debris, pollen, and silt wash into CGI frame weep holes. Water backs up, sits in the track, and rots the sill substrate on older wood-adjacent installations. We clear the drainage paths, replace rotted sill stock, and add secondary drainage where the original design came up short.
- Bent interlock hooks on casement windows after hurricane-force winds. A CGI casement that took a direct hit from a hurricane or severe thunderstorm can have its interlock hooks bent just enough that the window won’t fully close. Air and water infiltration follow. We straighten or replace the interlocks and reset the sash so the seal lands true.
- Failed balance systems on single and double hungs. In Houston’s humidity, CGI balance tubes corrode and lose tension. The sash drops when you open it, or won’t stay up at all. We replace balances with OEM-equivalent parts and test the full travel before we pack up.
CGI Service in Houston: What Local Conditions Mean for Your Equipment
Houston’s lack of zoning means a single CGI window retrofit in Sharpstown might face a 1970s unflashed aluminum frame with no sill pan while a Clear Lake job has full tape flashing and a concrete lintel. Our pre-install surveys must account for both within the same city limits. That’s not a detail we gloss over. When we quote an insert Houston Window Replacement in Sharpstown, we’re checking whether stormwater has been wicking into the frame for decades, whether the sill substrate has started to crumble, and whether we need to add a waterproof sill pan before the new CGI unit goes in. In Clear Lake, the opening may already be properly flashed, but the salt air and wind-driven rain demand different sealant choices. Same brand, same city, two completely different jobs. Owen’s rule: measure twice, quote straight, show up when I said I would.
CGI Models & Products We Service in Houston
Our crew works on the CGI Sentinel 950 Series, the Estate Collection, the Classic 600 Series, and the StormPro 700 Series. We source genuine CGI replacement parts when available, especially for impact-rated glazing and locking mechanisms critical in storm zones across Houston. When OEM is back-ordered or discontinued for older models, we use marine-grade aftermarket components that match local corrosion demands, and we will honestly tell you if a full replacement beats a patch. Inserts, full replacements, energy-efficient upgrades, and hurricane impact windows all fall under our CGI sales & service work.
CGI Service Pricing in Houston
Most CGI service calls in Houston run between $185 and $485 for diagnosis, labor, and common parts like rollers, balances, or weatherstripping. Replacing a failed insulated glass unit on a CGI window typically lands between $350 and $850 depending on size and whether the glazing is impact-rated. Full insert window replacement on a standard opening usually runs $900 to $1,800 per window, installed. The written price you get before any work starts is the price you pay. No revised invoices at the door. If you want an exact number for your specific CGI window or door, call (325) 326-4211, and we’ll schedule a free estimate with a tech who’ll walk the job and give you a line-item quote.
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 – CGI Windows & Doors in Houston
Small cracks in the outer lite of an impact-rated CGI window can sometimes be repaired with a resin injection, but any crack that compromises the laminated interlayer or the window’s structural rating means the glass must be replaced. Houston’s storm exposure doesn’t leave room for guesswork. We’ll inspect the crack, check the laminate, and tell you straight whether a repair keeps your rating intact or a replacement is the only honest option. Call (325) 326-4211 and we’ll send a tech to look at it.
Fogging between the panes means the thermal seal has failed, and Houston’s intense UV exposure plus humidity cycling causes that failure faster than most climates. The desiccant inside the spacer bar saturates, condensation forms, and once the seal is gone, the window loses much of its insulating value. The fix is replacing the failed insulated glass unit. On older CGI double-pane units, we’ll check whether a new IGU makes sense or if the frame itself has aged enough that a full insert replacement is the better money. Call (325) 326-4211 for a quote on your specific unit.
Yes. In Meyerland and other Houston neighborhoods that flood repeatedly, CGI frames need their weep holes cleared and sometimes enlarged, and we often add secondary drainage channels to move water out faster than the original design allowed. The roller tracks and sill substrates are the first things to fail after repeated inundation. We’ve rebuilt enough Meyerland sliders to know exactly where water pools and what it takes to keep a CGI window draining properly after the next high-water event.
The real test is a blower door or smoke pencil test around the interior trim, combined with checking that the sill pan was installed and sloped correctly. In Houston’s humidity, even a small air leak will condense on the interior glass and eventually rot the surrounding wall. With our Window Installation in Houston, we flash every insert with a sill pan, back-caulk the fin or jamb, and use low-expansion foam plus caulking to deaden air movement. If your current CGI inserts fog, sweat, or leak air around the trim, call (325) 326-4211 and we’ll find out why.
This depends on the specific warranty terms for your unit. Some CGI warranties require factory-authorized service for certain repairs, while others permit independent work using OEM parts. We are an independent CGI service provider, not manufacturer-affiliated or authorized, and we do not make warranty claims on your behalf. What we do is tell you honestly whether a repair is likely to affect any remaining warranty coverage before we touch the window. Our techs are trained and experienced with CGI products, and we source genuine CGI parts whenever they’re available.
Service Areas Near Houston
We run CGI service calls throughout Houston and the surrounding cities. Our techs regularly work in The Woodlands, Sugar Land, Humble, Pasadena, and Friendswood. If you’re in any of these areas, you’re in our service territory. For the communities north of the city, see our CGI service in The Woodlands page. Southwest of Houston, we have CGI service in Sugar Land coverage, and our Houston service area page lists every neighborhood we work in. Call and we’ll confirm your address on the spot.
Book Your CGI Service in Houston Today
Call (325) 326-4211 and a live person answers, 24 hours a day, 7 days a week. Not a voicemail tree, not a chatbot. We’ll schedule your free estimate, send a background-checked, uniformed tech, and put your written price in your hand before any work starts. That’s the Kingswell Way.
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.