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 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
ES Windows Window Installation: The San Jose Owner’s Guide
If you have an ES Windows unit that needs replacement, we install ES Windows-compatible windows throughout San Jose, with most single-window installations running $850 – $1,850 installed depending on size, frame material, and glass package. We stock ES Windows parts on our trucks and can typically complete a standard installation in one visit once your window arrives or is confirmed in stock. Most San Jose homeowners discover the problem the same way: a window that won’t close square, condensation that never clears between the panes, or a frame that’s started to leak during winter storms off the Santa Cruz Mountains.
Which ES Windows Models This Applies To
ES Windows builds aluminum and vinyl frame lines that show up all over San Jose, from 1970s ranch houses in Cambrian Park to newer construction in Almaden Valley. The compatibility gotcha with ES Windows specifically is the frame depth: their aluminum series uses a 3-1/4″ frame on older units and a 3-5/8″ frame on post-2005 production. If you measure the wrong one, the new window won’t seat properly in the rough opening. Look for the ES Windows sticker on the inside track of the frame’s bottom rail, or check the edge of the glass for an etched manufacturer code. We match OEM ES Windows units where the opening and trim call for it, and we stock quality aftermarket equivalents from PGT, CGI, and CWS when an OEM replacement would force a full reframe. Westlight Windows San Jose is an independent service provider, not affiliated with ES Windows, which means we’re free to recommend the part that actually fits your opening rather than the one a corporate catalog says should fit.
Signs Your ES Windows Window Installation Is Failing
- Condensation between the glass panes. The seal has failed and the insulating argon or krypton gas has escaped. This is the most common ES Windows failure we see in San Jose, where winter temperature swings between warm afternoons and cold nights stress the sealant.
- The sash drags or won’t stay open. Aluminum frame channels wear over time, especially on windows exposed to San Jose’s dry summer heat. The coil balance or friction shoe inside the track has given out.
- You can feel a draft even when the window is fully closed. The weatherstripping has compressed or the frame has shifted slightly out of square. In older San Jose homes with clay soil, minor foundation movement is common and windows absorb that stress.
- Water stains on the interior wall below the window. The weep holes at the bottom of the frame are clogged or the exterior caulking has cracked. During a wet El Niño winter, this leak shows up fast.
- The lock no longer engages. The strike plate or lock body has worn, or the frame has flexed enough that the two sides no longer line up. This is a security issue more than a comfort one.
Replacement Cost & What’s Included
In San Jose, expect a standard ES Windows replacement to run $850 – $1,850 installed. Smaller fixed-picture windows sit at the lower end; larger sliders and casements with low-e glass (a thin coating that reflects heat back into the room in winter and out in summer) land at the upper end. Every price you get from us is a written line-item quote before any work starts, and that number doesn’t move unless you change the scope. Our labor includes removing the old unit, inspecting the rough opening for rot or water damage, shimming and leveling the new frame, insulating the gap, re-trimming the exterior, and hauling away the old window. If the installation fails within the guarantee period, we come back and fix it at no charge under the 365-Day Done Right Promise.
DIY or Call Us?
You can safely check a few things yourself: whether the weep holes are clear of debris, whether the caulking bead around the exterior frame is cracked, and whether the window is square by measuring diagonally corner to corner. What we don’t recommend is pulling the old ES Windows unit yourself. A full-frame replacement in an older San Jose house often means working around stucco, dealing with hidden termite damage, or discovering the rough opening was never flashed properly. Those are exactly the situations where a homeowner gets in over their head. Owen Satterfield has spent close to two decades doing this work, and he’ll tell you straight whether a repair beats a replacement. Call (669) 333-7786 and we’ll walk you through it over the phone before anyone schedules a visit.
FAQs
Most ES Windows aluminum frames last 25 – 35 years in San Jose’s climate, though seal failure often shows up at the 15 – 20 year mark because of UV exposure and temperature cycling. Vinyl ES Windows units typically hold their seals longer but can warp slightly in direct south-facing afternoon sun. If your window is over 20 years old and showing seal failure, replacement usually beats repair. Call (669) 333-7786 and we’ll give you a straight read on what’s left in your frame.
Some failures can be repaired: a worn balance, a compression-damaged weatherstrip, or a misaligned sash are all fixable without pulling the frame. A failed glass seal cannot be repaired; the insulated glass unit has to be swapped. We’ll tell you which situation you have and give you both the repair number and the replacement number so you can decide with full information. Estimates are free.
A standard single-window ES Windows installation takes 2 – 4 hours on site, including removal, opening inspection, new window set, insulation, interior trim work, and cleanup. If we find rot or water damage in the rough opening, we’ll stop, show you what we found, and give you a written add-on price before we do anything else. The Kingswell Guarantee means you see the full scope and the full number in writing before work starts.
We stock common ES Windows replacement hardware on our San Jose trucks: friction shoes, coil balances, lock bodies, strike plates, and weatherstripping for the most common series. If we don’t have your exact part, we order from our ES Windows supply chain and hold your written quote price until the part arrives. Call ahead and we’ll confirm what we have before we roll out.
Ready to get your ES Windows unit fixed or replaced? Call Westlight Windows San Jose at (669) 333-7786 and we’ll schedule a free estimate with a written price before any work begins. A window should keep the weather out and stay out of your way, everything else is just details.
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.