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
Window Company in Atherton, CA
Westlight Windows & Doors is the window company Atherton homeowners call when their home’s openings need work done right the first time. Atherton’s large estate homes, many built from the 1920s through the 1980s, place demands on windows and doors that most tract-home contractors never face. Custom millwork, oversized openings, steel casements from before 1970, and a design review process that touches nearly every exterior change mean the work here is different. If you’re weighing window or door work in Atherton, call (669) 333-7786 and we’ll talk through what your house actually needs.
Why Atherton Homes Are Different
Atherton’s housing stock is almost entirely large, custom-built single-family homes on minimum one-acre lots. You’ll find Tudor, Mediterranean, Colonial, and Modern styles along El Camino Real, Stockbridge Avenue, and the winding roads off of Selby Lane. Many of these homes feature custom millwork, divided-lite windows, and entry doors sized well beyond a standard 36-inch rough opening. The climate is mild Mediterranean, but wet cool winters and warm dry summers still test weather sealing and energy performance. What really sets Atherton apart, though, is the town’s planning and design review process. Nearly any exterior change, even a like-for-like replacement, can require approval. Contractors have to navigate Atherton’s Heritage Tree Ordinance and strict setback rules, which shape how openings are altered or expanded on these estate lots. A window company that doesn’t understand this will promise a fast job and stall for months.
Our Main Atherton Services
Atherton homeowners call us most about two things: replacing windows that have outlived their seals or their original steel frames, and installing new entry and interior doors that match the scale of the house. Here is what separates the jobs we handle in Atherton.
Window Replacement in Atherton
Window Replacement in Atherton often starts with a question: can the original steel casement windows from a 1950s or 1960s build be saved, and if not, what replaces them without fighting the design review board? We carry eight manufacturer lines, including impact-rated PGT and energy-efficient ECO Window Systems, so the product is matched to the house rather than the house being forced to fit one brand. You get a written price before any work starts, and a written guarantee when it’s done.
Window Installation in Atherton
New construction and full-frame window installation in Atherton tend to run larger than typical because the openings themselves are larger and the surrounding millwork is often custom. Atherton’s dry summers and occasional winter storms mean sealing and flashing details matter as much as the glass itself. We work with the town’s design review timeline, not against it, and our Window Installation in Atherton crews leave the site clean at the end of every day. The quote you approve is the price you pay.
Door Installation in Atherton
Entry doors in Atherton are frequently oversized, custom-milled, and far heavier than standard residential stock. We install Therma-Tru and Mr-Glass doors built to the opening rather than trying to shim a stock door into a custom frame. Whether it’s a front entry that faces a wind-driven winter rain or a courtyard door off a Mediterranean-style home, Door Installation in Atherton begins with a written line-item price and ends with the 365-Day Done Right Promise in writing.
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 Atherton
We install and service windows and doors from eight manufacturer lines, including Mr-Glass, Therma-Tru, ViewLux, and PGT. Parts for common repairs are stocked in our Bay Area warehouse, which keeps lead times shorter than most Atherton homeowners expect. Browse our brands to see the full range.
Pricing for Window Company in Atherton, CA
| Service | Typical range in Atherton |
|---|---|
| Single window replacement (standard size) | $1,250 – $2,600 installed |
| Full-frame window replacement with custom trim | $3,400 – $6,200 per opening |
| Original steel casement window replacement | $4,800 – $8,000 per opening |
| New construction window installation (per opening) | $1,800 – $3,800 installed |
| Bay or bow window installation | $6,500 – $13,000 |
| Oversized entry door installation | $5,500 – $12,000 installed |
| Custom-milled door installation | $7,000 – $15,000 per door |
| Interior door installation (up to 5 doors) | $1,900 – $4,200 total |
| Patio or sliding door installation | $4,200 – $9,500 installed |
What pushes a price up in Atherton is custom sizing, divided-lite patterns, and the lead time that design review can add to any job. The figure we hand you in writing before any work starts is the figure you pay when the work is done, no door-step revisions and no change orders.
Neighborhoods We Serve in Atherton
Westlight works across the full Atherton area, including the estate neighborhoods around El Camino Real, Stockbridge Avenue, Selby Lane, and the streets near the town’s western edge. Our crews are dispatched from the San Francisco Bay Area office and typically respond to Atherton calls within one business day.
- West Atherton
- Lindenwood
- Atherton Oaks
- Menlo Circus Club area
Service Area – Cities Near Atherton
We serve Atherton and the surrounding Peninsula communities. If your project is on the border or you’re weighing options, our crews also work in Menlo Park, CA, Stanford, CA, Los Altos, CA, and Mountain View, CA. Same written-price guarantee, same crews, same Kingswell Guarantee on every job.
Serving Atherton, CA - Our Local Coverage Area
We’re based in the Atherton 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 Atherton
We typically respond to Atherton calls within one business day for scheduling and estimates. Because Atherton jobs often involve design review, the estimate and the project timeline are separate conversations. Call (669) 333-7786 and a live person will help you schedule the first visit.
Yes. We work with Atherton’s planning and design review requirements on every job that needs approval. We can’t waive the process or speed up the town’s calendar, but we prepare the paperwork and coordinate the sequence so the work moves as efficiently as the review allows.
No. The written price you approve before any work begins is the price you pay. That’s part of the Kingswell Guarantee on every job we do in Atherton. If we find something hidden after the opening is exposed, we stop and talk to you before touching anything else. Call (669) 333-7786 to schedule a free estimate.
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 Atherton Customers Say
"Front door was swollen and wouldn't latch half the year. New door and frame, done in a day. Looks great and actually seals. Written price didn't budge."
- Renee Saldana"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