Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Window Company in Livermore, CA
Livermore homes ask more of their windows and doors than almost anywhere else in the Bay Area. The Altamont Pass funnels sustained afternoon winds through town while summer temperatures climb past 100°F, and that combination pushes seals, frames, and weatherstripping hard. Westlight Windows & Doors is an independently owned and operated Kingswell location serving Livermore with window replacement, window installation, and door installation. Every job starts with a written price before any work begins. Call (903) 354-7134 for a free estimate.
Why Livermore Homes Are Different
Livermore sits at the mouth of the Altamont Pass wind corridor, and that geography shapes every window and door job we do here. Sustained westerly afternoon winds hammer homes in a way Pleasanton and Dublin simply don’t experience. Layer those winds on top of summer afternoons that routinely exceed 100°F while Oakland sits in the 60s, and you get a dual thermal-and-wind stress that chews through insulated glass seals, warps patio door tracks, and breaks down weatherstripping years before it would fail a few miles west.
The housing stock compounds the problem. Much of Livermore’s 1960s through 1980s tract housing, built during the Lawrence Livermore National Laboratory and Sandia growth years, still carries original aluminum single-pane windows. Those windows were never designed for Title 24 energy standards, and decades of heat cycling have left many frames bowed and seals blown. Newer subdivisions in south and east Livermore are now hitting their first replacement cycle as IGU seals age out, which means we see foggy glass in nearly every neighborhood we visit.
Our Main Livermore Services
Most Livermore homeowners call us for one of three jobs: replacing failed windows, installing new windows in remodels or additions, or swapping out a worn entry or patio door. Each has its own page with local pricing and details.
Window Replacement in Livermore
Replacing windows in Livermore usually means pulling out aluminum single-pane units from the 1970s or 1980s and putting in dual-pane, low-e glass that can handle Altamont wind pressure and triple-digit summers. We measure carefully because many of these older tract homes have settled, and a window that’s square on paper often isn’t square in the opening. See our full Window Replacement in Livermore page for pricing and what the job involves.

Window Installation in Livermore
New construction and addition work in Livermore comes with its own set of rules. California’s Title 24 energy code applies to every new window, and Livermore’s building department checks that the product you’re installing actually meets the spec for the climate zone. We handle the paperwork and the flashing details so inspections pass the first time. Get the specifics on our Window Installation in Livermore page.

Door Installation in Livermore
Windward-facing doors on the northwest side of Livermore homes take a beating from Altamont gusts. We regularly replace warped patio door tracks, failed weatherstripping, and entry doors that no longer seal. The fix isn’t just a new door slab, it’s proper flashing and a threshold that won’t let wind-driven rain through. Details and pricing are on our Door Installation in Livermore page.

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 Livermore
We install from eight manufacturer lines, with CGI, CWS, and ECO Window Systems among the most common choices for Livermore’s climate. Impact-rated products hold up to wind pressure, and energy-efficient glazing cuts cooling costs in summer. Parts are stocked locally through our Bay Area supply chain, and most orders turn around within two weeks. See our brands for the full picture.
Pricing for Window Company in Livermore, CA
| Service | Typical range in Livermore |
|---|---|
| Single window replacement (standard size, vinyl) | $600 - $1,200 installed |
| Single window replacement (wood or composite) | $1,000 - $2,000 installed |
| Full-house window replacement (10-15 windows) | $8,000 - $20,000 installed |
| Picture window installation | $800 - $1,500 installed |
| Bay or bow window installation | $2,500 - $5,500 installed |
| New construction window installation (per window) | $500 - $1,000 installed |
| Sliding glass door replacement | $1,800 - $3,500 installed |
| French door installation | $2,000 - $4,500 installed |
| Entry door replacement (steel or fiberglass) | $1,500 - $3,000 installed |
| Patio door track or weatherstripping repair | $250 - $600 |
Windward-side work on I-580 corridor homes can push pricing toward the upper end of these ranges, since we often need extra flashing and reinforcement against Altamont gusts. Whatever the number, you receive a written price before any work starts, and that price doesn’t change at the door.
Neighborhoods We Serve in Livermore
We work throughout Livermore, from the original tract neighborhoods near the Lab to the newer subdivisions south of I-580 and east toward the Altamont. Response time for a free estimate is typically within one to two business days anywhere in the city.
- Springtown
- Summerset
- Junction Avenue area
- South Livermore
- East Avenue corridor
Service Area – Cities Near Livermore
While this page covers Livermore, our crews also serve homeowners in Pleasanton, CA, Hayward, CA, Dublin, CA, and San Ramon, CA. Each area has its own local conditions and pricing page.
Serving Livermore, CA - Our Local Coverage Area
We’re based in the Livermore 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 Livermore
We typically schedule free estimates in Livermore within one to two business days. When you call (903) 354-7134, a live person answers and books the appointment right then, not a voicemail box.
Most like-for-like window replacements in Livermore don’t need a permit, but new window openings, structural changes, and some door replacements do. We handle permitting and inspections as part of the job, so you don’t have to navigate the building department alone.
Yes. We work across Livermore, from 1960s tract homes near the Lab to 2000s and 2010s subdivisions in south and east Livermore. No area of the city is too far for a free estimate. Call (903) 354-7134 to schedule yours.
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 Livermore Customers Say
"Got quotes from three companies. Westlight wasn't the cheapest but they were the only one who measured everything carefully and put it all in writing. Worth it. No surprises on install day."
- Craig Dillard"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 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










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