New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows San Jose 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
CGI Window Replacement: The San Jose Owner’s Guide
A failed CGI window part in San Jose typically costs $220 – $680 to replace, depending on whether we’re swapping a balance, a latch, a weatherstrip run, or a full sash. Most jobs are done in one visit because we keep common CGI replacement parts on the truck, and we’ll give you the written price before we start. The way homeowners usually discover the problem is simple: the window won’t stay open, won’t lock, or you can feel air moving through it on a December morning when the Santa Cruz Mountains are pulling fog down into the Almaden Valley.
Which CGI Models This Applies To
We replace parts across CGI’s residential lines, including the Estate Collection, Classic Collection, and the impact-rated StormPro series that’s common in San Jose hillside homes where wind load matters more than it does down in the flatlands. The fastest way to identify your window is to check the corner of the glass or the side of the frame for a small etching or sticker; CGI marks their sashes with a model code that tells us the series and the glass package. If the sticker is gone, we measure the visible glass width and the sash thickness, and match it against CGI’s sizing charts.
Here’s where it matters: CGI sashes from the StormPro line use a heavier balance system than visually identical non-impact models from the Classic line. An aftermarket balance rated for a standard window will not hold an impact sash for long. When OEM parts are available, we use them. Where production has moved on, we carry aftermarket equivalents we’ve tested on San Jose homes for years, and we will tell you which one you’re getting and why.
Signs Your CGI Window Replacement Is Failing
- The sash drops or slams shut when you let go. That’s a balance or spiral spring failure. On CGI vinyl frames, the balance cartridge is housed inside the jamb, and when it lets go, the window loses its hold.
- The window locks, but there’s a visible gap at the seal. The lock is engaging but the weatherstrip has compressed past its useful life. You’re losing conditioned air and inviting the San Jose dry-season dust in.
- The crank turns but the sash doesn’t move. On CGI casement windows, the operator gear strips over time. The replacement is a gear-and-arm assembly, and it’s a 45-minute fix in most cases.
- Condensation sits between the panes. The insulated glass unit has lost its seal. This isn’t a wipe-it-off problem; the argon or krypton fill is gone and the glass’s insulating value has dropped with it.
- You have to lift or shove the window to close it. The frame or the sash has shifted, or the roller assemblies on a CGI slider have worn flat. Forcing it works until the day it doesn’t.
Replacement Cost & What’s Included
Most single-window CGI part replacements in San Jose run $220 – $680 installed. A balance or latch job lands at the lower end. A replacement insulated glass unit runs higher, especially on StormPro impact windows where the laminated glass carries a real materials cost. Every quote includes the part, the labor, the disposal of the failed piece, and a written guarantee on the work. What drives the range is the series, the glass type, and whether the part is current OEM or an equivalent we’ve sourced and tested. You will see the full price in writing before we touch the window, and that price does not move once work starts.
DIY or Call Us?
You can safely do a few things before calling. Check whether the window is square in its opening, look for debris in the track, and note whether the failure is on the operable sash or the frame. That tells us a lot. What we’d rather you not do is open up the jamb to access a balance system; those springs carry real tension, and a slipped tool in that space can take a finger off. Same goes for removing an impact-rated StormPro sash, which is heavier than it looks and awkward to handle alone. The job that goes wrong at home costs more than the call. If the window is just no longer doing its job, call us at (669) 333-7786 and we’ll put a real person on the line to schedule the visit.
FAQs
Most CGI window balances, latches, and operators last 10 to 18 years in San Jose’s climate before fatigue or wear takes them out. The dry summers and low humidity are easier on frames than they are on seals, which tend to fail from thermal cycling. A window on a west-facing wall in Willow Glen will cook in the late-afternoon sun and its weatherstrip will degrade faster than the same window on a shaded north side.
Sometimes yes, and we’ll tell you honestly. A crank that’s just gummed up with dust can often be cleaned and lubricated, and a latch that’s loose can be tightened. But a snapped balance spring or a blown seal is a replacement job, not a repair. Call (669) 333-7786 and describe what the window is doing; we can usually tell you over the phone which category you’re in.
A balance, latch, or weatherstrip swap takes 45 minutes to an hour once we’re on site. A full insulated glass unit replacement usually takes 90 minutes. The variable is whether we have the exact part on the truck, which is why we ask for the model code or a photo before we come out.
We keep the most common CGI balances, latches, sweeps, and operators on hand for the Classic, Estate, and StormPro lines. If it’s a less common part, we order it and give you the lead time before we schedule. Westlight Windows San Jose is an independent installer, not a CGI-owned service center, and we carry parts for PGT, CWS, ES Windows, and others so we can match the fix to the window you actually have. Call (669) 333-7786 for a free estimate.
Written by Owen Satterfield, Owner, Westlight Windows San Jose at Westlight Windows San Jose, serving San Jose and nearby areas.
Six Reasons Homeowners Choose Westlight Windows San Jose
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.