Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterWindow Company in Westmont, CA
Meridian Windows & Doors is the window and door contractor Westmont homeowners call when they want the price in writing before work starts, a crew that shows up on schedule, and a full-year guarantee behind every install. We replace windows, install new-construction windows, and fit patio doors across Westmont, with eight manufacturer lines in the portfolio so the product matches the house and the block, not the other way around. Call (817) 686-2228 for a free estimate on any window or door job in Westmont.
Why Westmont Homes Are Different
Westmont sits in the South Los Angeles area, unincorporated Los Angeles County, where the housing stock runs heavily toward single-story stucco homes built between the 1940s and 1960s. Those homes have a few things in common when it comes to windows and doors. Original wood frames have spent sixty to eighty years in dry heat and cool, damp marine-layer mornings, which means paint-sealed sashes, swollen or rotted bottom rails, and glass that no longer sits square in the opening. We see a lot of aluminum single-pane sliders from the 1970s too, frames pitted from years of sprinkler overspray and fogged glass where the seal has failed.
Westmont’s exposure matters. Homes along Western Avenue and Vermont Avenue catch afternoon sun on the west side, and without low-E glass, that heat loads up the living room by four in the afternoon. The marine layer that rolls in off the Pacific cools things down at night, so seals expand and contract constantly. That daily cycle is what kills old caulk and weatherstripping faster here than inland. We spec glass and frame materials around that specific pattern, not a generic coastal or desert formula.
Because Westmont is unincorporated county, not a chartered city, permitting runs through Los Angeles County Building and Safety. For window replacement that doesn’t change the opening size, permits are typically not required. For patio door installation where we cut a wider rough opening, we pull the county permit and get the inspection signed off. That keeps the paperwork clean when you sell the house.
Our Main Westmont Services
Three jobs make up most of what we do in Westmont: removing and replacing worn-out windows, installing windows in new walls or additions, and fitting patio doors. Each one has its own page with local pricing and specifics, linked below.
Window Replacement in Westmont
Most Westmont window replacement work is removing the old frame down to the rough opening and setting a new, properly flashed window in its place. On stucco exteriors from the 1950s, that means cutting back the stucco edge cleanly, installing a sill pan and flashing tape, and then re-sealing so water can’t track inside the wall. We handle the full removal, disposal, and exterior trim. See Window Replacement in Westmont for line-item pricing and the exact process.
Window Installation in Westmont
New window installation in Westmont usually comes up in two scenarios: a room addition where the window goes into fresh framing, or a remodel where an existing opening is being enlarged and reframed. The work is different from replacement because there’s no old window to pull – we’re setting a brand-new unit into a new opening, flashing it, and tying it into fresh stucco or siding. Window Installation in Westmont covers the process and what it costs.
Patio Door Installation in Westmont
Patio door installation in Westmont often means converting a standard back door or a window into a sliding glass or French door leading to a backyard. Many Westmont lots run long and narrow, so a door that opens onto the yard changes how the whole back of the house lives. We cut the opening where required, install the door with proper flashing, and pull the Los Angeles County permit when the structural opening changes. Patio Door Installation in Westmont has the full breakdown.
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 Westmont
We install and replace windows and doors from eight manufacturer lines, and for Westmont jobs we typically spec PGT for impact-rated work, ES Windows for narrow-frame modern looks, and Therma-Tru for entry and patio doors. See our brands for the full portfolio and what each line is best at.
Pricing for Window Company in Westmont, CA
| Service | Typical range in Westmont |
|---|---|
| Single window replacement, standard vinyl | $450 – $850 installed |
| Single window replacement, mid-grade vinyl | $650 – $1,200 installed |
| Single window replacement, premium fiberglass | $1,000 – $2,000 installed |
| Single window replacement, aluminum (retrofit) | $500 – $1,100 installed |
| Custom wood window replacement | $1,500 – $4,000+ installed |
| New-construction window installation, standard | $600 – $1,400 per window |
| Patio door installation, sliding (standard vinyl) | $1,800 – $4,500 installed |
| Patio door installation, French (in-swing/out-swing) | $2,200 – $6,000 installed |
| Whole-home window replacement (8 – 12 windows), vinyl | $7,000 – $18,000 installed |
What pushes a Westmont job toward the upper end is usually stucco repair around old frames, oversized openings that need custom sizing, or a permit and inspection when we alter structure. That’s why every estimate is written down in full before any work starts – you get a fixed number, not an opening bid that creeps up later.
Neighborhoods We Serve in Westmont
We work across all of Westmont, from the streets north of Imperial Highway down to the South Los Angeles border, and east-west between Vermont Avenue and the 110 Freeway corridor. Our crews are usually scheduling about a week out for standard replacements, with repair visits often sooner.
- Westmont proper
- Vermont Vista
- Vermont-Slauson
- Athens
- South Los Angeles
Service Area – Cities Near Westmont
While this page is for Westmont, our crews also cover a wider area around Los Angeles County for homeowners who live just outside the neighborhood. See our pages for Los Angeles, CA, San Diego, CA, San Jose, CA, and San Francisco, CA if you’re in one of those areas.
Serving Westmont, CA - Our Local Coverage Area
We’re based in the Westmont 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 Westmont
Standard window replacement and patio door installation in Westmont is typically scheduled within one to two weeks of the estimate. Repairs on an existing install are prioritized. Call (817) 686-2228 and we’ll give you a straight answer on scheduling.
For most like-for-like replacements that don’t change the rough opening, no permit is required in unincorporated Westmont. If we’re enlarging an opening or cutting a new one for a patio door, we handle the Los Angeles County permit and inspection. We walk you through what applies to your job during the estimate.
Every installation in Westmont is covered in writing for 365 days under our Done Right Promise. If the work fails within that period, we return at no charge to make it right. That covers labor and installation workmanship, with no fine print exclusions on labor.
If you’re planning window or door work in Westmont, call (817) 686-2228 for a free estimate. The price goes on paper before any work starts, and it doesn’t move at the door.
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 Westmont Customers Say
"Noise from the street dropped noticeably with the laminated glass."
- Harvey D."Installed six replacement windows in a day and a half. Crew was punctual, disciplined, and clean. The owner is a veteran and the standards show."
- Phil R."Patio door replacement. Smooth sliding and a tight seal. Old door hauled away."
- Lena C.