New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows Los Angeles 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 homeowners arrive naming - the most impact certifications in the industry$$$
- More impact certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe value pick$$
- Vinyl systems built to strict wind codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Factory-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Fast, Reliable Window Installation Across Mar Vista
Window installation in Mar Vista usually means working with homes built between 1940 and 1960, and that changes the job. The original rough openings are often undersized by today’s standards, the wood jambs have been painted over for seventy years, and what hides behind the trim rarely matches what the tape measure says from the outside. That’s the reality. Full replacement on a typical Mar Vista single-family home runs $600 – $1,400 per window installed, depending on whether we’re retrofitting into original framing or setting a new-construction flange on a remodel addition. If you’re looking at a Window Installation project, call us at (213) 810-3461 and we’ll walk the house with you before any numbers are written.

Why Westlight Windows Los Angeles Is Mar Vista’s Preferred Window Installation Company
We’ve spent years opening walls in Mar Vista, and we’ve learned the houses here tell a story before we ever pull a permit. The original post-war bungalows and ranch-style homes off Venice Boulevard and along Grand View Boulevard share framing habits: undersized headers, studs spaced wider than modern code allows, and sill plates that have wicked marine-layer moisture for decades. Our crews know which era of construction they’re looking at before the first screw comes out.
Owen Satterfield leads our installation teams, and the standard he set in 2009 still runs every job: inspect what’s behind the wall before quoting a final number, write every price in advance, and show up in the window we gave. Mar Vista homeowners have told us that’s the difference. A real person answers our phones 24 hours a day, so when you call about a blown seal on a picture window facing the evening west light, you’re not leaving a voicemail.
Every job here is done under the Kingswell Guarantee, which is a written document you get before work starts. It says the price won’t change unless we write a change order and you approve it in writing. It says the site gets left cleaner than we found it. And it says if the work fails within the guarantee period, we come back and fix it at no charge. That’s the Mar Vista promise, and it’s non-negotiable.
Picture Window in Mar Vista
A picture window in Mar Vista is the one fixed pane that frames the west light most of these older homes were oriented toward back in the 1950s. These are large, non-opening units, and on a ranch house near Mar Vista Park they’re often the biggest thermal hole on the wall. Most picture window replacements here run $900 – $2,200 installed depending on glass package and whether the original rough opening needs reframing.
What the installation actually involves
We remove the old sash and inspect the rough opening before anything new goes in. In original Mar Vista framing, that often means discovering the header is undersized or the jamb is out of square by half an inch or more. We correct what needs correcting, flash the opening properly, and set the new insulated glass unit with low-E coating so the afternoon sun warms the room without overheating it.
Where picture windows fit Mar Vista homes
On Venice Boulevard-adjacent ranches and the two-story remodels north of Washington Place, picture windows often go in the living room or a front bedroom facing west. The marine layer keeps mornings cool and gray, so many Mar Vista homeowners want maximum glass without the frame lines that divided double-hungs. A picture window gives you that clean view, but it has to be sized and sealed right or the first offshore wind will find the gap.
Bay Window Installation in Mar Vista
Bay window installation in Mar Vista means adding a three-panel projection that pushes a room outward, usually in a living room or front bedroom of a post-war ranch or bungalow. The original homes here rarely had them, so most bay window work is either a retrofit into a standard wall opening or part of a larger remodel. Expect to pay $2,800 – $5,500 installed for a full bay unit in Mar Vista, depending on size, glass package, and whether we’re building a new structural bracket or using a pre-assembled box frame.
Structural checks before we quote
Most Mar Vista walls from the 1940s and 1950s were not designed to carry the cantilevered weight of a bay projection. We inspect the floor system and header before quoting, because if the framing underneath can’t hold the load, the price changes and you need to know that before the wall is opened. We write it all down.
Matching the home’s original lines
Mar Vista bungalows have a specific roof pitch and eave profile, and a bay window has to sit under that eave without looking bolted on. Our crews build the exterior trim and roof cap to match the existing board profiles and paint lines, so the new bay reads like it was part of the original plan, not an add-on from a different decade. Owen Satterfield has walked enough of these streets to know the difference matters to you.

Trusted Brands We Service in Mar Vista
We carry eight manufacturer lines, and for Mar Vista work we lean most often on PGT for impact-rated coastal performance, CGI for heavy laminated glass on wind-exposed elevations, and ViewLux for clean, narrow-frame picture windows that maximize the west light. Because we’re an independently owned and operated Kingswell location, we stock local parts for these brands and don’t have to wait on a distributor three counties away. That means faster turnaround on warranty work and fewer days between measure and install.
Common Window Installation Problems We See in Mar Vista Homes
- Rotted original jambs under paint. The 1950s wood jambs on Mar Vista bungalows have been painted over so many times that dry rot hides until we remove the sash and the wood crumbles. If we set a new unit into that, the seal fails within two seasons.
- Undersized rough openings. Original Mar Vista windows were often framed to accept single-pane sashes no thicker than an inch and a quarter. Modern insulated glass units are fatter, so a lazy contractor over-cuts the framing to make it fit, leaving gaps the marine-layer air finds.
- Failed or missing flashing. Homes built before modern waterproofing standards rarely have proper sill pans or head flashing. We see this on nearly every original Mar Vista house we open, and it’s the top reason a “simple swap” turns into a real rebuild.
- Snapped sash cords on original double-hungs. On Beethoven Street, a 1952 ranch had its original double-hung sashes snapping cords with every offshore gust. That’s a telltale sign the weights, pulleys, and frames have never been touched since the house was built.
Pricing for Window Installation in Mar Vista, CA
Most single-window replacements in Mar Vista run $600 – $1,400 installed, including the new unit, new flashing, and reframing of the rough opening if needed. Picture windows run $900 – $2,200. Bay windows run $2,800 – $5,500. Casement windows and awning units fall in the $850 – $1,800 range depending on size and hardware. The final number depends on what we find inside the wall, and that’s exactly why we inspect first and write the price before work starts. Call (213) 810-3461 and we’ll set a time to measure and quote. The estimate is free, and the written price is what you pay unless you approve a change order in writing.
We Also Serve Cities Near Mar Vista
Beyond Mar Vista, our crews work throughout Los Angeles, East Los Angeles, West Hollywood, and North Hollywood. The framing issues shift a bit from neighborhood to neighborhood, but the standard stays the same: inspect first, write the price, show up in the window, and stand behind the work. If you’re nearby and need window installation, call us at (213) 810-3461.
Serving Mar Vista, CA - Our Local Coverage Area
We’re based in the Mar Vista 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 Installation in Mar Vista
Rotted jambs, undersized headers, missing flashing, and stud bays that have wicked decades of marine-layer moisture are the four most common things we find. Original Mar Vista framing was built to code at the time, but the code didn’t anticipate insulated glass, impact ratings, or sixty years of coastal air working on unprotected wood. We inspect every opening before we quote, and any framing correction gets written into the price before the wall is opened. Call (213) 810-3461 for an inspection.
Yes, in most cases. When you change the framed opening or trigger code upgrades, the City requires a permit and the job has to meet current building standards. Skipping the permit is false economy, because the final inspection on a permitted project is your proof the work was done right. We pull permits, coordinate inspections, and make sure the install passes the first time. Call (213) 810-3461 and we’ll walk you through what your specific project triggers.
Those windows are original double-hungs from the 1940s or 1950s, built with weight-and-pulley sash cords that run inside the jamb. The cords fatigue and snap after decades of offshore wind loading, and when they go, the sash drops. The proper fix is full replacement with a modern insulated unit and new jambs, not another cord. We reframe the rough opening and install a window that doesn’t rely on cotton rope to stay open. Call (213) 810-3461 for a replacement quote.
Yes. We build exterior trim to match the existing board profiles and paint lines on your specific ranch or bungalow, and we size the glass so it sits proportionally under the original eave overhang. The goal is a window that looks like the house always had it. We’ll show you samples and match the trim before we cut anything. Call (213) 810-3461 and we’ll set a time to measure.
We stop, photograph it, show you what we found, and write a change order that prices the new flashing, sill pan, and any framing repair before we proceed. You approve it in writing, and that’s the only time the price moves. At Westlight, “the price won’t change unless you sign off” isn’t a slogan. It’s the Kingswell Guarantee, and we’ve been working that way since Owen Satterfield founded the company in 2009. Call (213) 810-3461 for a free estimate.
Call Westlight Windows Los Angeles at (213) 810-3461 to schedule your free window installation estimate in Mar Vista. A real person answers, and we’ll walk the house with you before any money changes hands.
Written by Owen Satterfield, Owner at Westlight Windows Los Angeles, serving Mar Vista since 2009.
Six Reasons Homeowners Choose Westlight Windows Los Angeles
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.