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Aluminum Window Replacement in Los Angeles Swap Old Sliders for Dual-Pane Vinyl or New Aluminum
Aluminum Window Replacement Los Angeles | Replace Old Sliders
Description: Aluminum Window Replacement in Los Angeles, CA. Sweating, drafty old sliders swapped for dual-pane vinyl or aluminum, no stucco cutting. Call (424) 230-8336.
Old aluminum sliders in LA’s 1950s to 1970s tract homes can be swapped with retrofit windows, without cutting stucco. New vinyl windows run about $100 to $575 each and new aluminum $125 to $1,000, per Angi, and LADWP pays back $2 per square foot on qualifying windows. PaneRight LA connects you with independent local contractors who handle aluminum window replacement across Los Angeles, with vinyl, fiberglass or new thermally broken aluminum.
Call (424) 230-8336 for a free aluminum window quote.
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- Serving 10 LA areas
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Why Do Old Aluminum Windows Fail in LA Homes?
After 50 or 60 years, old aluminum frames sweat, the sliders drag and the rooms overheat.
01
Why Do Aluminum Window Frames Sweat and Grow Mold?
On cool mornings, a bare aluminum frame gets colder than the room air. Moisture from showers, cooking and breathing condenses on the metal and drips onto the sill. That wet sill grows mildew and black mold, and the paint and drywall below start to peel.
02
Why Are Your Aluminum Sliders Drafty and Hard to Open?
Sliders ride on small rollers in a bottom track. After decades, the rollers flatten, the track pits and bends, and the felt weatherstripping wears away. The sash drags, the latch won’t catch and wind whistles through the gaps.
03
Why Do Rooms With Aluminum Windows Get So Hot?
Angi notes metal frames conduct heat, which makes the AC work harder in summer. Pair that with single-pane glass, and west rooms in the San Fernando Valley bake every afternoon. Sun through old glass also fades floors and furniture.
What’s Included in Our Aluminum Window Replacement Service?
Every job covers measuring, removing the old sash and hardware, installing and sealing the new windows, and hauling the old aluminum away.
01
Do You Remove the Old Aluminum Frame or Fit New Windows Over It?
Both, based on your walls. A retrofit window with a flush fin fits over the old frame, so the stucco stays in place. A full-frame install removes the old frame too, which fixes rot or leaks but means stucco and drywall patching. See our retrofit windows page for how that choice works.
02
Can You Replace Old Aluminum Windows With New Aluminum?
Yes. New thermally broken aluminum windows have an insulating strip between the inside and outside metal, so they sweat far less than old frames. They keep the slim sightlines many mid-century homes need. They cost more than vinyl and have to meet Title 24.
03
Can You Replace Only Some Aluminum Windows and Keep the Rest?
Yes. Start with the worst rooms, like west bedrooms or the street side. Contractors match frame color and grid style so the house still looks even.
Odd fixed or clerestory windows can stay until you’re ready. Old aluminum storm windows over wood sashes can be replaced on their own, too.
How Much Does It Cost to Replace Aluminum Windows in Los Angeles?
A whole-house job in Los Angeles averages $19,356, and most homeowners pay $16,359 to $22,377, according to Angi. Price per window follows size, frame material and install method.
| Option | Price per window (Angi) |
|---|---|
| New aluminum window | $125 to $1,000 |
| Vinyl window | $100 to $575 |
| Glass only in an existing aluminum frame | $181 to $414 |
Your quote shows the installed price for each window.
Do New Aluminum Windows Cost More Than Vinyl?
Yes, most of the time. Angi lists aluminum at $125 to $1,000 per window and vinyl at $100 to $575. Size and glass package move the price more than anything else.
How Can You Lower the Cost of Replacing Old Aluminum Sliders?
Replace several windows in one visit so setup and permit costs are shared. Choose standard sizes and white or tan vinyl. Apply for the LADWP rebate, which pays $2 per square foot for ENERGY STAR windows with a final permit. If only the glass is foggy or cracked, aluminum window glass replacement keeps the frame and costs less.
Should You Replace Aluminum Windows With Vinyl or New Aluminum?
Vinyl wins on price and insulation, and Angi calls aluminum less insulating than other frame materials. New aluminum wins on slim frames and strength for big openings.
| Vinyl | New thermally broken aluminum | |
|---|---|---|
| Price | Lower | Higher |
| Insulation | Good | Fair |
| Frame width | Wider | Slim |
| Best for | Ranch and tract homes | Mid-century modern, large glass |
| Salt air | No corrosion | Needs a coastal finish |
For more on vinyl, see our vinyl window replacement page.
Which Replacement Windows Work Best for Mid-Century and Coastal LA Homes?
For mid-century homes with walls of glass, slim fiberglass or thermally broken aluminum keeps the look. For beach homes in Santa Monica, Long Beach and the South Bay, vinyl or fiberglass won’t corrode. For 1950s ranch homes in the Valley, dual-pane vinyl sliders with low-E glass cut heat for less money than fiberglass or aluminum. See our fiberglass window replacement page.

How Does the Aluminum Window Swap Work, Step by Step?
- Measure. Contractors measure every opening and check the frames for rot or leaks.
- Quote. You get a written price for each window.
- Permit and order. Contractors file the permit and order windows built to size.
- Remove. Contractors take out the old sash and hardware, and the frame if needed.
- Install and seal. New windows go in level and square, sealed to the stucco.
- Final. Contractors test every window, pass inspection and haul the old aluminum away.
What Should LA Homeowners Know Before Replacing Aluminum Windows?
Energy code, salt air and historic rules all shape which window you can use.
01
Can Aluminum Windows Meet California’s Title 24 Energy Rules?
Only with extra steps. Replacement windows must meet a 0.30 U-factor under Title 24, and aluminum frames struggle to reach it. The Eichler Network notes aluminum windows are hard hit by the code and are possible mainly under the performance method, with upgrades elsewhere in the house. Ask for the NFRC label values before you order.
02
Do Aluminum Windows Corrode Near the Beach?
Yes. Angi lists aluminum as susceptible to saltwater corrosion. Near the coast, choose vinyl or fiberglass, or new aluminum with a factory coastal finish, and rinse the frames a few times a year.
03
Do Historic Rules Apply to Mid-Century Aluminum Windows?
In some areas, yes. Balboa Highlands in Granada Hills is an HPOZ and the only Eichler tract in Los Angeles County. Its Preservation Plan asks for replacements that match the originals in size, pane layout, material and profile. See our historic window restoration service.
Why Do LA Homeowners Choose PaneRight LA for Aluminum Window Replacement?
Homeowners pick us for things they can check:
- Honest material advice. Vinyl, fiberglass or new aluminum, based on your home and budget.
- Rebate ready. Windows that meet LADWP’s limits, plus the final permit.
- Clean installs. Retrofit fins sealed to stucco without tearing up walls.
- Itemized quotes. Each window and the permit on separate lines.
- Warranty in writing. Ask for a written labor warranty on top of the manufacturer’s warranty.
Where Do Contractors Replace Aluminum Windows in Los Angeles?
Contractors work across the San Fernando Valley, Burbank, Glendale, Pasadena, Altadena, Santa Monica, Beverly Hills, Pacific Palisades, the South Bay and Long Beach. That covers postwar ranch homes in Northridge and Reseda, tract homes in Torrance and beach homes near the Redondo Beach Pier.

Aluminum Window Replacement FAQs
How Long Do Aluminum Windows Last?
Angi puts aluminum windows at 20 to 25 years. Many LA homes still have sliders from the 1960s, well past that point. Worn rollers, pitted frames and single-pane glass are the signs it’s time.
Can Old Aluminum Windows Be Repaired Instead of Replaced?
Some can. Aluminum window roller replacement, new latches, casement hinge replacement and fresh weatherstripping fix a dragging or drafty window for a few more years. See our window track repair page. Repair won’t fix the heat loss or sweating.
Should You Replace Old Aluminum Windows or Your AC First?
If your AC is failing, fix it first. If it works but runs nonstop, new windows on west and south walls cut the heat load, so a smaller or older unit keeps up better.
Can You Replace Aluminum Windows Yourself?
A retrofit on stucco needs the right fin, sealant and flashing to stay dry. In the City of LA, even a same-size swap needs an LADBS permit and inspection. The LADWP rebate also requires that final permit.
Why Do Window Companies Push Vinyl Over Aluminum?
Vinyl costs less, insulates better and passes Title 24 more easily. If you want slim frames, ask for thermally broken aluminum or fiberglass by name.

Ready to Replace Your Old Aluminum Windows?
Call (424) 230-8336 or send photos of your windows through the form. Tell us how many sliders you have and which way they face, and a local contractor will send a written price for each window. Need screens too? Contractors handle aluminum window screen replacement on the same visit.
