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 Los Altos, CA
Westlight Windows & Doors handles window replacement, window installation, and door installation across Los Altos, CA, with pricing that’s put in writing before any work starts. Most Los Altos homeowners we work with are dealing with something specific: an Eichler with original single-pane glass that sweats in winter, a mid-century ranch with aluminum frames that rattle in the wind, or a newer custom build where the builder-grade windows never quite sealed right. If you’re pricing windows or doors in Los Altos, call (669) 333-7786 and we’ll give you real numbers, not a vague range that changes at the door.
Why Los Altos Homes Are Different
Los Altos is not a tract-home city. A large share of the housing stock dates to the 1950s and 60s, and much of it was built in the Eichler style: post-and-beam construction with floor-to-ceiling glass, aluminum frames, and sliding doors that open onto patios and backyards. Those original windows are now 60-plus years old. The aluminum conducts heat, the single panes do almost nothing for solar gain, and the frames have often shifted with the soil. Replacing them isn’t a swap; it’s a structural exercise. Many Eichler openings are not standard sizes, so a window that looks like a 6-foot slider may measure 70-3/8 inches, not 72. That’s why we measure every opening ourselves and order to the actual number, not the nearest stock size.
The other Los Altos reality is design review. The city’s planning standards, especially for mid-century and Eichler homes, mean a window or door replacement can require showing that the new product preserves the original architectural character. You don’t get to swap a floor-to-ceiling aluminum wall for a standard white vinyl double-hung without someone noticing. Our team has worked through Los Altos permit and design review questions enough to know what documentation helps, what triggers a delay, and how to write the submittal so the project moves forward. We’ll pull the permit, meet the inspector, and make sure the paperwork matches the work.
Climate matters less for cold, more for sun. Los Altos gets real heat waves, and the afternoon west light is intense. Low-e coatings and laminated glass that cut UV and heat gain are the highest-value upgrade for most Los Altos homes, not triple-pane arctic glass. We talk through that distinction with every homeowner because the right glass for Los Altos is not the same as the right glass for Minnesota.
Our Main Los Altos Services
Most Los Altos homeowners call us for one of three jobs. Each gets its own dedicated page with local pricing, but here’s the short version of how we approach them in this city.
Window Replacement in Los Altos
Replacing windows in Los Altos usually means pulling old aluminum or wood frames and setting new units into openings that may have shifted over decades. For Eichler homes, we often order custom sizes and work with the post-and-beam structure so the new glass keeps the original lines. For Spanish-style and ranch homes, the work is more conventional but no less particular. We carry impact-rated PGT and energy-focused ECO Window Systems for homes that want real solar control. Window Replacement in Los Altos covers the full scope, from single-window swaps to whole-house retrofits.
Window Installation in Los Altos
When Los Altos homeowners are building an addition, finishing a remodel, or replacing a failed window under warranty, that’s installation rather than a full replacement project. We install exactly what the job calls for, set to the rough opening, flashed and sealed for our wet winters and dry summers. Our installers are background-checked and uniformed, and the job site is left clean at the end of every day. If the project has design review requirements, we’ll work with your plans and help the permit process go smoothly. Window Installation in Los Altos has the details, including what to expect on installation day.
Door Installation in Los Altos
Doors in Los Altos take a beating from the sun: warped slabs, faded finishes, and weatherstripping that crumbled years ago. We install Therma-Tru entry doors and ViewLux sliding patio doors, both ordered to fit the actual opening. A front door on a Los Altos home often has to clear a design review bar too, so we’ll help document the style and material choice if the city asks. For sliding glass doors on Eichler and ranch homes, the common replacement is a modern multi-slide or updated patio door that keeps the glass-heavy look while actually sealing. Door Installation in Los Altos walks through the options and typical timelines.
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 Los Altos
We install products from eight manufacturer lines, with parts and service support in stock locally. Therma-Tru entry doors, PGT impact-rated windows, and ViewLux patio doors are the ones Los Altos homeowners ask about most. Turnaround on standard orders is typically two to four weeks; custom sizing runs longer. See the full line on our brands page.
Pricing for Window Company in Los Altos, CA
| Service | Typical range in Los Altos |
|---|---|
| Standard single-window replacement (white vinyl, double-pane, no structural changes) | $800 – $1,700 installed |
| Custom-size window for Eichler or mid-century openings | $1,400 – $3,300 installed |
| Floor-to-ceiling glass wall replacement (per panel, when panels need structural reinforcement) | $1,900 – $4,600 installed |
| Sliding glass door replacement (standard 6-foot) | $2,200 – $4,800 installed |
| Multi-slide or oversized patio door | $5,000 – $12,000+ installed |
| Entry door replacement (Therma-Tru, single door with new frame) | $2,400 – $5,600 installed |
| Interior door installation (per door, pre-hung) | $450 – $1,100 installed |
| Full retrofit window package (10+ windows, mid-century home) | $18,000 – $45,000 installed |
What pushes price up in Los Altos is the same thing that makes the city distinctive: non-standard openings and design review. Custom sizing, structural reinforcement around glass walls, and permit submittal work all add cost. What we promise is that the number we quote is the number you’ll pay. Written price before any work starts, no revised invoices at the door.
Neighborhoods We Serve in Los Altos
We work throughout Los Altos, from the flats near downtown to the hills and the Eichler-heavy sections that define so much of the city’s mid-century character. Each area has its own rhythm: some streets are all original 1950s builds, others are new custom construction. Our crews stage locally, so a typical first visit happens within a few business days of your call.
- North Los Altos
- South Los Altos
- Loyola Corners
- Country Club area
- The Highlands
Service Area – Cities Near Los Altos
We regularly serve homeowners in Mountain View, CA, Stanford, CA, Menlo Park, CA, and Sunnyvale, CA. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, with crews working locally in Los Altos and the surrounding communities.
Serving Los Altos, CA - Our Local Coverage Area
We’re based in the Los Altos 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 Los Altos
Most first visits in Los Altos happen within two to four business days. When you call (669) 333-7786, you’ll speak with a live person who can look at the schedule and give you a real window, not a call-back promise. If you have a water intrusion issue or a broken door, we’ll move faster.
Many do, especially anything visible from the street or on a home subject to design review. We’ll tell you upfront whether your specific project needs a permit, and if it does, our team handles the paperwork and the inspection. You’ll know before we start.
Yes. We order custom sizes from manufacturers who can produce the clean, thin-frame profiles that match Eichler and mid-century lines. We won’t force a stock window into a 1950s opening; we measure, order to spec, and preserve the look while upgrading the glass and seal performance.
Ready to price your window or door project in Los Altos? Call (669) 333-7786 for a free estimate and a written quote before any work starts. Owen and our team will walk you through the options for your specific home, no pressure and no surprises.
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 Los Altos Customers Say
"Windows are great and the install was solid. One of the installers was quieter and didn't explain much, but the lead walked me through everything at the end and made sure I was happy."
- Lamar Jennings"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