Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Lomita
Window replacement in Lomita runs $850-$1,800 per opening for a standard vinyl retrofit, and $1,400-$3,200 for a full-frame tear-out with new construction. Those are installed prices, written down before we touch the first screw. The reason we can give you a real number instead of a vague ballpark is simple: Lomita’s housing stock is almost entirely 1950s-1970s tract homes with nearly identical rough openings, and we’ve measured hundreds of them. Call (903) 354-7134 and we’ll come out, measure yours, and hand you a line-item quote the same day.

Why Westlight Windows & Doors Is Lomita’s Preferred Window Replacement Company
We’ve been doing Window Replacement in this part of Los Angeles County since 2009, and Lomita jobs have a very particular rhythm. The homes are compact, the streets are tight, and the windows are almost always original aluminum sliders that have been fighting salt air for fifty or sixty years. We know the difference between a house near Lomita Park that catches the southwest wind off the Palos Verdes Peninsula and a house a mile inland near Eshelman Avenue that sits calmer. That changes how we seal the jamb, what hardware we specify, and how long the job takes. Owen Satterfield, who runs our crews, walks every Lomita job before we quote it. No drive-by estimates, no phone guessing.
Our Lomita customers tend to say the same three things about working with us. We show up in the window we gave. We leave the site cleaner than we found it, down to vacuuming the sill tracks. And we put the price in writing before anything starts, so the number you sign is the number you pay. The Kingswell Guarantee backs all of it: a written price, a committed arrival window, a clean job site, and a written guarantee on the completed work. If a repair fails within the guarantee period, we come back and fix it at no charge. That’s the Kingswell Way: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, put the guarantee in writing, come back if it fails.
Window Pane Replacement in Lomita
Window Pane Replacement in Lomita usually means swapping failed insulated glass units in an otherwise sound frame, and it typically runs $320-$680 per pane installed. It’s the right call when the frame is still square and the tracks still slide, but the glass has fogged, cracked, or lost its seal. In Lomita, we see a lot of this on homes where the original single-pane glass was upgraded to dual-pane at some point, but with cheap spacer bars and desiccant that gave out fast in the marine humidity. You don’t always need a whole new window. Sometimes you need a good glass shop, and that’s what we are.
When the Frame Is Worth Saving
A 1960s CWS or ViewLux aluminum frame that still operates cleanly can take a new insulated glass unit and run another twenty years. The key is checking the weep channels for salt crust and the corners for hairline cracks. If the frame is pitted through the anodized finish, don’t put new glass in a dying frame. You’ll pay twice. We’ll tell you which camp your window falls into before we quote.
What the Job Actually Involves
We pull the sash, remove the failed unit, clean and repair the glazing channel, drop in the new low-E insulated glass unit sized for Lomita’s Climate Zone 8 requirements, and reseat the gasket. Most Lomita pane replacements take under an hour per window once we’re on site. The material lag is the real variable, and since we stock common Lomita sizes across the brands we carry, it’s usually days, not weeks.
Window Seal Repair in Lomita
Window Seal Repair in Lomita most often means replacing the hardened, cracked weatherstripping and glazing gaskets that let the southwest wind drive water past the jamb and into the wall cavity. A full seal rebuild on a typical Lomita slider runs $180-$420 per window, depending on how many sides are gone and whether the track needs cleaning or replacement. The marine layer off San Pedro Bay keeps relative humidity high year-round, which turns rubber seals brittle years before they should fail. You’ll feel it first as a draft, then as a small water stain on the drywall below the sill.
How We Stop the Water
The failure you can’t see is the one that rots framing. We pull the sash, strip the dead gaskets, clean the channels with a dry solvent, and install marine-grade weatherstripping that’s rated for continuous salt exposure. Then we seal the exterior jamb-to-sill junction with a marine-grade sealant. That’s the detail most crews skip, and in Lomita it’s the difference between a seal that lasts three years and one that lasts fifteen.
Sill Pan Repair Under Old Sliders
Original Lomita sliders often sit on sill pans that were never flashed properly, and forty years of port particulate has eaten the corner welds. We can rebuild a sill pan without pulling the whole frame on most tract homes. If you’re seeing water damage on the interior wall below a slider, call (903) 354-7134 before the rot spreads into the wall cavity.

Trusted Brands We Service in Lomita
We carry and service eight manufacturer lines, and for Lomita’s conditions we lean on PGT, CGI, and ViewLux for their marine-grade frame coatings and impact-rated glass options. We stock common Lomita sizes in our local inventory, so a pane replacement doesn’t wait on a factory order from the East Coast. When a homeowner near Narbonne Avenue needs a seal rebuild on a 1970s CWS slider, we’re not guessing at the gasket profile. We’ve got the right part on the truck because we’ve done that exact window a hundred times in this city. The brand choice matters less than the spec. Lomita needs low-E insulated glass units with Climate Zone 8 U-factor and SHGC ratings, stainless hardware, and marine-grade sealant, and we match the product to the job rather than forcing the job to fit one brand.
Common Window Replacement Problems We See in Lomita Homes
- Aluminum frames pitted from the inside out. Port-area salt and diesel particulate settle into the weep channels and never fully rinse. By the time the frame is visibly chalky on a 1958 tract home near 247th Place, the sash track is already failing and the window won’t close square anymore.
- Weatherstripping hardened to brittle flakes. The persistent marine-layer humidity in Lomita breaks down rubber seals far faster than in Torrance or Lakewood. We routinely pull sliders where the gasket snaps off in chunks instead of peeling out in one piece.
- Title 24 inspection flags on remodel permits. Because Lomita sits in California Energy Commission Climate Zone 8, any permitted window replacement must meet specific U-factor and SHGC thresholds. Original single-pane sliders fail those thresholds badly, and inspectors commonly flag them during unrelated kitchen or bath permits, turning a routine remodel into a mandatory window job mid-project.
- Southwest wind-channeled water intrusion. Lomita’s position at the base of the Palos Verdes Peninsula funnels wind from the southwest directly into window and door jambs. Threshold seals degrade faster than in flatter coastal communities, and the first sign is usually water pooling on the interior sill track after a night of steady wind.
Pricing for Window Replacement in Lomita, CA
Here’s what we quote on Lomita jobs, in writing, before any work starts. A standard vinyl insert replacement runs $850-$1,800 per window. A full-frame replacement, which means pulling the old frame down to the rough opening and building it back, runs $1,400-$3,200. A pane-only replacement is $320-$680. A seal rebuild runs $180-$420 per window. What moves the price within those ranges? The window’s size, whether the frame goes to the studs, whether we find rot or termite damage in the rough opening, and what glazing spec your permit requires. The salt-adjacent spec costs more up front because it uses marine-grade hardware and better glass. The cheap inland spec costs more within a decade, always. Call (903) 354-7134 for an exact written quote. Estimates are free.
We Also Serve Cities Near Lomita
Our crews run daily from Lomita into the surrounding South Bay. Most of our Lomita customers find us through neighbors in Lakewood, Torrance, Carson, and Rancho Palos Verdes, where we’re doing the same salt-aware, Climate Zone 8-spec work on the same postwar housing stock. The drive from our Los Angeles dispatch office to Lomita is short, and we schedule by neighborhood so we’re not burning your afternoon waiting on a truck.
Serving Lomita, CA - Our Local Coverage Area
We’re based in the Lomita 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 Replacement in Lomita
Because Lomita sits roughly three to four miles from the Port of Los Angeles, and the air here carries salt off San Pedro Bay plus diesel particulates and industrial fallout from port operations. Torrance sits inland enough that the worst of that never reaches it. The salt and particulate settle into the weep channels of your aluminum sliders and never fully rinse out. The corrosion starts inside the track, where you can’t see it, and by the time the frame looks chalky from the outside the track is already failing. If your brother’s house is still on original aluminum from the 1960s, that’s why his frames look better than yours. That’s not a cleaning problem. It’s a materials problem, and the fix is usually a new frame with a marine-grade coating, not another scrub with steel wool. Call (903) 354-7134 and we’ll look at yours.
A dual-pane low-E insulated glass unit that meets Climate Zone 8’s U-factor of 0.30 or better and a SHGC of 0.23 or better for most replacement applications. That’s the thin reflective coating on the glass that keeps heat indoors in winter and pushes it back out in summer. We specify that spec on every Lomita job, whether the permit requires it that week or not, because it also happens to be the glass that holds up best under salt and particulate. If an inspector flagged your window during a remodel, you don’t have time to shop glazing specs. We do. We’ll match your opening to a unit that passes on the first inspection.
You can replace just the glass if the frame is still square, the tracks still slide, and the weep channels aren’t pitted through the anodized finish. That’s a pane replacement, and it runs $320-$680 per window in Lomita. If the frame has visible pitting, a cracked corner weld, or a track that won’t close square, putting new glass in is a waste of your money. The frame will fail within a few years and you’ll pay to do the job again. We’ll tell you honestly which camp your window is in before we quote anything. Free estimate, no pressure. Call (903) 354-7134.
The marine layer keeps relative humidity high here year-round, and that moisture attacks rubber weatherstripping and glazing gaskets from the outside while condensation attacks them from the inside. Seals in Lomita harden and crack in ten to fifteen years where the same seals in Lakewood might last twenty. The first sign is a draft on a windy night, then water on the interior sill track. A seal rebuild runs $180-$420 per window, and we use marine-grade weatherstripping that’s rated for continuous salt exposure. Don’t wait until the water stain shows up on the drywall. The wall cavity repair costs more than the window work.
No. Vinyl is actually the best frame material for Lomita’s salt-laden air because it doesn’t corrode, pit, or lose its finish the way the original aluminum frames do. We install vinyl frame units from CWS, PGT, and CGI here routinely, and the modern extrusion profiles are built to handle direct coastal exposure. The important part isn’t vinyl versus aluminum. It’s the hardware and the glazing. Spec stainless hardware, marine-grade sealant, and low-E insulated glass with Climate Zone 8 ratings, and a vinyl window will outlast the original aluminum by decades. Skip the stainless and the marine sealant to save a few hundred dollars on a whole-house job, and you’ll pay for it in seal failures and track corrosion within ten years.
Get Your Free Lomita Window Replacement Estimate
If your windows are fogged, stiff, drafty, chalked out, or just fifty years old and tired, call (903) 354-7134. Owen Satterfield or one of our Lomita schedule coordinators will answer, ask about your house and what you’re seeing, and set a time for a free in-person estimate. We’ll walk the windows, measure the openings, point out what’s actually failing and what’s still got life in it, and hand you a written price before we leave. No door-step revisions. No vague ranges. No pressure. Just the real number, in writing, backed by the Kingswell Guarantee and our 365-Day Done Right Promise. West light is the late-afternoon sun that pours through a good window, bright and warm and worth doing right.
Written by Owen Satterfield, Owner at Westlight Windows & Doors. Independently owned and operated Kingswell location serving Lomita and the surrounding South Bay. Founded 2009.










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