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
Window Company in Fremont, CA
Westlight Windows & Doors handles window replacement, window installation, and door installation across Fremont, CA. The work here is defined by Fremont’s housing stock: thousands of single-family homes built between the 1950s and 1980s with original aluminum sliders and single-pane wood windows that were never designed for today’s efficiency standards. The inland climate does the rest, with wide daily temperature swings that stress old seals until they fail. Call (669) 333-7786 when you’re ready to price a project, and we’ll give you a written quote before any work begins.
Why Fremont Homes Are Different
Fremont’s suburban tracts went up fast during the post-war decades, and most of those original windows are still in place. In Irvington, Centerville, and Warm Springs, we regularly walk into homes where the aluminum sliders are so loose you can feel the draft from across the room. The problem is not just age. Fremont’s inland microclimates create more extreme thermal cycling than you’d see in coastal cities. Glass expands and contracts daily, and after forty or fifty years of that, the seals around dual-pane units, where they exist, simply give out. Fogged glass, condensation between panes, and frames that warp slightly in summer are the telltale signs.
Older Fremont homes also tend to have narrower rough openings than modern standard sizes, which means some replacement jobs require custom sizing rather than an off-the-shelf unit. The Niles district has its own set of considerations: many of the historic bungalows there still have original wood sash windows with wavy glass. Replacing those often triggers historic review, so we talk through retrofit options like interior storm windows that maintain the look while cutting the draft. Every job in Fremont starts with a conversation about what the house actually needs, not what a catalog says should fit.
Our Main Fremont Services
Most Fremont homeowners first call us about one of two things: replacing old, drafty windows, or installing new construction windows during a remodel. Door installation runs a close third, especially when a slider has become hard to open or a front door no longer seals. Each service has its own detailed Fremont page below.
Window Replacement in Fremont
Replacing windows in Fremont usually means pulling out original aluminum or single-pane wood units and putting in dual-pane, low-e glass sized to the existing rough opening. Our Window Replacement in Fremont page covers what a full-house replacement typically costs, how we handle stucco exteriors without tearing out the surrounding framing, and why we recommend certain glass packages for Fremont’s inland heat. We carry eight manufacturer lines, so we match the product to the house rather than forcing one brand onto every job.
Window Installation in Fremont
New construction and addition work in Fremont calls for a different process than retrofit replacement. Our Window Installation in Fremont page goes over the details: flashing, nailing fins, working with your general contractor or our team, and getting the rough opening right the first time so the window seats correctly and stays square. Fremont’s windier periods make proper flashing more than a formality. A window that is flashed carelessly will leak when the next rain system comes through.
Door Installation in Fremont
Door installation in Fremont often involves replacing the aluminum sliders that were standard in 1970s and 1980s tract homes with modern, better-sealed units. Our Door Installation in Fremont page covers entry doors, sliding patio doors, and French doors, including what to expect for pricing and lead times. A door that sticks, drags, or lets daylight show through the weatherstripping is costing you more each month than most people realize, and Fremont’s temperature swings make an old door’s leaks more obvious in both summer and winter.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Fremont
We install and stand behind eight manufacturer lines, including ViewLux, PGT, CGI, and CWS. Impact-rated PGT and CGI units are popular with Fremont homeowners who want stronger wind and debris protection, while ViewLux and CWS cover a wide range of architectural styles. See our brands for the full line. Parts for common repairs are stocked locally, which keeps typical turnaround tight.
Pricing for Window Company in Fremont, CA
| Service | Typical range in Fremont |
|---|---|
| Single window replacement (standard size) | $450 – $850 installed |
| Full-house window replacement (single-story, 10 – 15 windows) | $7,500 – $15,000 |
| Full-house window replacement (two-story, 15 – 20 windows) | $12,000 – $24,000 |
| New construction window installation (per unit) | $250 – $550 labor only |
| Sliding patio door replacement | $1,400 – $3,000 installed |
| Entry door replacement (standard single door) | $1,200 – $2,600 installed |
| French door installation (exterior) | $2,400 – $4,800 installed |
| Low-e glass upgrade (per window) | $60 – $140 |
| Interior storm window (per unit, Niles-area retrofit) | $300 – $600 |
What pushes a Fremont job above the entry-level number is usually the rough opening. Older tract homes often have sizes that fall between standard catalog dimensions, and custom sizing adds cost. Stucco exteriors can also add prep time when the old window frame is set deep and needs careful cutting to remove cleanly. Whatever the final number, you get it in writing before any work starts. We do not revise quotes at the door.
Neighborhoods We Serve in Fremont
We work throughout Fremont, from the older ranch tracts in Irvington and Centerville to newer builds in Warm Springs and the historic bungalows of Niles. Most of our crews are already working in the area on any given week, so we can usually schedule an estimate within a few days of your call.
- Irvington
- Centerville
- Warm Springs
- Niles
- Mission San Jose
Service Area – Cities Near Fremont
Westlight also serves neighboring communities across the South Bay and Peninsula. If you’re in Milpitas, CA, Sunnyvale, CA, Mountain View, CA, or Stanford, CA, the same written-price guarantee and eight manufacturer lines apply. Scheduling is coordinated from our San Francisco Bay Area office, with crews dispatched locally.
Serving Fremont, CA - Our Local Coverage Area
We’re based in the Fremont 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 Company in Fremont
Most Fremont homeowners get an estimate within three to five business days of calling. Because our crews are already working in Fremont neighborhoods on a regular basis, we can often fit in a measurement visit sooner if your schedule is tight. Estimates are free, and the price you receive is in writing before any work begins. Call (669) 333-7786 to get on the schedule.
In most cases, replacing windows and doors in existing openings does not require a permit in Fremont, though adding new openings or enlarging existing ones typically does. If your project involves structural changes, we will discuss the permit path during the estimate so there are no surprises. For homes in Niles with historic review requirements, we’ll walk you through what applies to your specific house.
Fremont’s microclimates mean a west-side home near the Bay stays cooler while an east-side home in Warm Springs sees hotter, drier afternoons. We factor that in when recommending glass packages, and low-e coatings, which reflect heat back out in summer and back in during winter, matter more here than in coastal cities with steadier temperatures. The right glass choice shows up in lower monthly energy bills.
Yes. The Niles district has specific constraints when it comes to replacement windows, and we’ve worked through those reviews with homeowners before. Retrofit options like interior storm windows can restore comfort and efficiency without altering the original sash and glass, and when full replacement is possible with proper approval, we handle the custom sizing those older rough openings require. Call (669) 333-7786 and we’ll talk through what your house qualifies for.
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.
Other Westlight Windows San Jose Services
What Neighbors Say About Westlight Windows San Jose
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Fremont Customers Say
"Our sliding patio door had come off its track years ago and we just lived with it. New one is smooth as butter. They hauled off the old one and vacuumed up before they left."
- Jessica Landry"Replaced a big picture window that had a failed seal and was always foggy. Can finally see the yard again. On time, tidy, and they stood behind the install with a written guarantee."
- Carol Whitaker"Replaced eight drafty old windows that were basically single pane. The house is warmer already and the street noise is way down. Crew was on time both days and the price was exactly the quote."
- Harold Bemis