New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows Dallas 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 Window Replacement: The Dallas Owner’s Guide
CGI window replacement in Dallas typically runs $900 – $1,900 per window installed, depending on the series, size, and whether you’re matching an existing impact-rated unit or upgrading to one. We stock CGI-compatible replacement sashes, glass packs, and full-frame units, and most single-window swaps are completed in one visit. You’ll usually discover a part has failed the hard way: a lock that won’t throw, a sash that suddenly drags, condensation you can’t wipe off the inside of the glass, or a draft you feel standing three feet away on a January morning.
Which CGI Models This Applies To
CGI’s impact-rated lines dominate the Dallas market, but compatibility isn’t universal. The main series we see are the Estate Collection (aluminum, heavy frames, often on two-story homes in Lakewood and Preston Hollow), the Sentinel line (vinyl, popular in newer builds across Collin County and north Dallas), and the older CGI 9000 series still running on houses built before 2010. Here’s the gotcha: CGI changed their frame depth and glass pack thickness between series generations, so a sash from a Sentinel won’t seat into an Estate frame even if the visible dimensions match. If you’re not sure which series you have, check the stamp on the glass corner or the sticker inside the frame channel. It’ll list the series, the manufacturing date, and often a plant code that tells us exactly which glass pack to order. When an OEM part is backordered or discontinued, we use the original spec sheet to spec a quality aftermarket glass pack that matches the original’s laminate thickness and low-e coating. On impact windows, that lamination is structural, not cosmetic. Matching it correctly is the difference between a window that meets Miami-Dade wind standards and one that doesn’t. We’re an independent provider, not a CGI dealer, but we’ve been ordering against their spec sheets since 2009 and know the series differences cold.
Signs Your CGI Window Replacement Is Failing
- Condensation between the glass panes: The insulating gas has leaked out through a failed seal. Wiping the outside does nothing because the moisture is trapped inside the unit. This is the most common CGI failure we see in Dallas, where summer heat expands the sealant and winter cold contracts it until the perimeter seal cracks.
- A sash that’s suddenly heavy or binds on one side: The balance mechanism (the hidden spring-loaded part in the side jamb) has lost tension or broken. On CGI aluminum frames, the original balances were sized for specific sash weights, and a mismatched replacement will chew through new ones in a season.
- Water staining at the window corners after a hard rain: The frame’s weep system is clogged or the corner gasket has failed. On older CGI 9000 series units, the original corner seals harden and shrink in Texas heat, letting driven rain pool inside the track instead of draining out.
- Locks or latches that no longer throw smoothly: The lock’s keep bar has shifted out of alignment, usually because the sash has settled or the frame has racked slightly. Forcing the lock is the fastest way to strip the internal gear on a CGI multi-point lock, which is a much more expensive replacement than realigning the sash.
- A visible crack in the glass or lamination: Impact-rated glass is designed to hold together after a strike, but a compromised lamination lets moisture into the interlayer and the breach spreads. Even a hairline crack in the outer lite means the unit should be replaced before the next hailstorm, because a compromised pack won’t perform the way the glass was tested.
Replacement Cost & What’s Included
Here’s what CGI window replacement runs in Dallas, installed:
- Glass pack only (seal failure, keeping the existing frame): $450 – $800 per window, depending on series and glass package.
- Sash replacement (warped sash, failed balance, lock replacement): $600 – $1,100 per window.
- Full-frame replacement (rotten frame, racked opening, series change): $1,200 – $1,900 per window.
Our number includes the part, labor, haul-away of the old unit, and a written workmanship warranty. The price we quote you before the job starts is the price you pay. If we find hidden rot or framing damage when we open the wall, we stop, walk you through what we found, and put any change in writing before we keep going. That’s the Kingswell Way, and it’s not negotiable. Owen Satterfield has watched too many Dallas homeowners get burned by door-step revisions to allow it on his jobs.
DIY or Call Us?
You can safely check a few things yourself: read the corner stamp to identify your series, note whether the condensation wipes off or stays inside the pane, and measure the width and height of the visible glass to give us a starting point over the phone. Here’s where DIY ends on CGI units. Impact windows are heavy (a single Estate sash can weigh over 60 pounds), and the frames run on hidden balance cartridges under tension. Releasing a balance incorrectly sends a steel cable across the room at high speed. There is no YouTube tutorial worth a deep cut or a broken jaw when a trained crew with the right tools can do the whole swap safely in under two hours. If it involves tensioned balance cartridges, glass lamination, or a frame that’s holding back a Texas-sized wind load, call (361) 441-0865 and let us handle it. If I wouldn’t put it on my own house, I’m not putting it on yours.
FAQs
In Dallas’s freeze-thaw-heat cycle, expect 18 – 25 years from a CGI unit before seals typically fail, with the first failures usually showing up at the 15-year mark on west-facing units that catch the full afternoon sun. A window in constant shade on the north side of a Lakewood house can hold up longer, but the sealant on any insulated glass unit eventually gives out in our climate. If yours is 15 years or older and the seal is gone, replacement is almost always a better dollar-for-dollar call than repair, because the unit is near the end of its realistic service life anyway. Call us at (361) 441-0865 and we can pull the date code on your glass to tell you exactly where you sit.
No, a failed seal on an insulated glass unit can’t be repaired from the outside. The sealant line sits under the frame’s glazing bead inside the sash, and once it’s cracked, the only correct fix is removing the old glass pack and setting a new one sealed to factory spec. We can sometimes replace just the sash if the glass is fine and the frame is solid, which saves you a few hundred dollars versus replacing the full unit. We’ll tell you straight if your sash is worth keeping. Call (361) 441-0865 for a free assessment.
Most single-window replacements run two hours or less from the moment we set down our drop cloths to the moment we’re cleaning the glass. If we’re doing a full-frame replacement on a two-story wall or an opening with rot, plan on four to six hours and we’ll match the window perfectly to the original opening’s trim profile. We commit to a real arrival window and we honor it.
We keep common CGI glass packs and the common balance cartridges on the truck, and our supplier network can get OEM spec-part replacements for the Estate, Sentinel, and 9000 series to Dallas in five to ten business days. When the part has to come from the manufacturer, we tell you the lead time before you decide to proceed. No ambiguity, no “it’ll get here when it gets here.” We also stock comparable parts for PGT, CWS, and ES Windows if your project spans more than one brand.
Not sure exactly what part needs replacing? Call (361) 441-0865 and describe what the window is doing. We’ll ask a few questions to narrow down the series and the likely failure, give you an honest range over the phone, and schedule a free estimate if you want a firm number. No pressure, no vague numbers, no door-step surprises.
Written by Owen Satterfield, Owner, Westlight Windows Dallas at Westlight Windows Dallas, serving Dallas and nearby areas.
Six Reasons Homeowners Choose Westlight Windows Dallas
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.