Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Window Company in Brentwood, CA
Westlight Windows & Doors is the Brentwood window and door company built for the way homes actually age here. Most of Brentwood’s housing stock was built in a single wave between 1995 and 2008, and those homes are now hitting the 20 to 25 year mark at the same time. That means warped builder-grade vinyl, blown dual-pane seals, and sliding doors that bind in their tracks are showing up block by block, and we see the same failure patterns from Trilogy to Shadow Lakes. If your Brentwood windows are fogged, hard to lock, or letting the afternoon heat pour in, call us at (903) 354-7134 and we’ll give you a straight answer. You can read more about the work we do on our home page.
Why Brentwood Homes Are Different
Brentwood sits at the inland end of the Delta corridor, where summer highs over 105°F meet the daily afternoon Delta breeze. That combination is hard on windows in a way coastal or even Tri-Valley contractors don’t see. The original windows on most Brentwood tract homes are low-grade vinyl double-pane units with argon fills that have long since migrated out. Thermal stress flexes the frames. The Delta wind pushes against the seals. On west- and south-facing elevations, especially in Deer Ridge and the newer subdivisions on the north and east edges, we regularly find builder vinyl that has warped enough that the sash no longer locks. You can’t fix that by adjusting the hardware, because the frame itself has changed shape. Sliding patio doors, often the original aluminum-framed units, wear at the track and rollers at a rate that surprises people who haven’t lived through a Brentwood summer. The good news is the work doesn’t require a custom approach; it requires the right replacement product matched to the exposure.
Our Main Brentwood Services
Brentwood homeowners call us most often about two things: replacing windows that have failed in the heat, and getting a front or patio door that actually seals. Here’s what each job involves in Brentwood specifically.
Window Replacement in Brentwood
Replacement work in Brentwood usually means pulling out builder vinyl and aluminum from the 1995 to 2008 tract-home wave and putting in a product rated for inland Delta heat. We measure every opening, because two-story stucco elevations in subdivisions like Trilogy can settle slightly over 20 years, and you don’t want a frame forced into an opening it doesn’t fit. We carry impact-rated and energy-efficient lines so the replacement matches the exposure, not just the opening. See the full scope on our Window Replacement in Brentwood page.

Window Installation in Brentwood
Installation in Brentwood means new-construction and addition work, or pulling windows for a remodel, and the sharp end here is flashing and sealing against the Delta wind. A window that looks fine on install day can leak at the head or sill inside two summers if the flashing isn’t lapped right for a house that takes wind-driven rain. We use the same product lines we stock for replacement work, so you’re not limited to whatever a supplier happens to have. Details are on the Window Installation in Brentwood page.

Door Installation in Brentwood
Brentwood entry doors take direct afternoon sun on one side and Delta wind on the other, which is why we fit a lot of Therma-Tru entry systems and properly flashed sills. A door that binds in its frame here usually isn’t a hinge problem; it’s the slab or the jamb moving as temperatures swing. We check the rough opening, the threshold height, and the weatherstripping before we set anything. Read the full breakdown on our Door Installation in Brentwood 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 Brentwood
We install ViewLux, PGT, CGI, and CWS among our full lineup, and we keep common parts stocked for the brands Brentwood homes already have. That means less waiting when a sash or balance needs replacing. See our brands page for the full manufacturer list.
Pricing for Window Company in Brentwood, CA
These are the ranges we most often quote in Brentwood. Every customer gets a written price before any work starts, and that price doesn’t change at the door.
| Service | Typical range in Brentwood |
|---|---|
| Single window replacement | $700-$1,400 installed |
| Full-home window replacement (10-15 windows) | $9,000-$18,500 installed |
| Standard sliding patio door replacement | $2,300-$4,800 installed |
| Front door replacement (fiberglass or steel) | $2,000-$4,500 installed |
| Vinyl window installation (new construction) | $450-$950 per opening |
| Aluminum window installation (new construction) | $600-$1,250 per opening |
| Exterior French door installation | $3,000-$6,200 installed |
Two things push Brentwood prices up. The first is access: many two-story stucco homes need a taller ladder and more careful flashing work than a single-story ranch. The second is exposure: west- and south-facing elevations with direct afternoon sun should get a better glass package, and we price that honestly rather than selling you a unit that will fail the same way the last one did. Owen Satterfield and the team at Westlight put every number in writing before any work begins, and that written price is the Kingswell Guarantee in practice: no surprises on install day.
Neighborhoods We Serve in Brentwood
We work across Brentwood’s subdivisions, from the older streets near downtown to the newer master-planned communities where the housing stock is just starting to show its age on west-facing exposures. Most estimates in Brentwood can be scheduled within a few days, and we hold the arrival window we give you.
- Trilogy
- Deer Ridge
- Shadow Lakes
- Downtown Brentwood
- North and east subdivision edges along Sand Creek
Service Area – Cities Near Brentwood
Westlight serves Brentwood and the surrounding East Contra Costa communities, including Oakley, CA, Discovery Bay, CA, Antioch, CA, and Clayton, CA. If you’re in one of those cities, the same written-price guarantee and live-answer phone line apply.
Serving Brentwood, CA - Our Local Coverage Area
We’re based in the Brentwood 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 Brentwood
We schedule estimates in Brentwood within a few business days in most cases, and we give you a committed arrival window, not a four-hour range. Call (903) 354-7134 and our team will get you on the schedule.
Many Brentwood subdivisions, including Trilogy and Shadow Lakes, have HOA design review for exterior changes. We’ll provide the product specs and drawings your HOA needs, and we can often help you understand whether your project even triggers review. Call us and we’ll walk you through it.
Yes. The Delta wind and 105°F summer highs are the two conditions that stress Brentwood windows most, so we spec low-e glass for heat and sealed, properly flashed frames for wind-driven rain. The right product for a Brentwood home isn’t the same as the right product for a coastal house, and we price it accordingly.
If you’re in Brentwood and your windows are fogged, warped, or hard to lock, call Westlight Windows & Doors at (903) 354-7134 for a free estimate and a written price before any work begins.
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 Brentwood Customers Say
"Two bedroom windows that never opened and one that wouldn't stay up. All replaced in an afternoon. The crew was clean, hauled off the old frames, and the quote held."
- Colette Rhee"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










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