Removal and Haul-Away
We pull the old window, sash, and any rotted framing, then haul everything off-site. You do not rent a dumpster or make a dump run. Disposal is in the quoted price.
Licensed
Licensed & Bonded
Fully Insured
Insured & Bonded
24/7 Emergency
Same-Day Response
Warranty Backed
16+ Years Trusted in Los Angeles
What Is Included in Composite Window Replacement
Every composite window replacement we sell includes the full scope: removal, disposal, new unit, flashing, insulation, sealing, and interior trim. No hidden add-ons for the basics. Here is what you get.
New Composite Unit
Your window arrives built to the measured opening with the glass package, grid pattern, interior finish, and hardware you selected. We verify the NFRC label matches the spec before installation.
Flashing and Sealing
Flashing tape over the nailing fin, insulation gun in the perimeter gap, and silicone caulk at the interior and exterior joints. This is the step that keeps water out and is the most common shortcut we fix on other companies' work.
Interior Trim and Finish
We install new interior casing and sill where needed and caulk it clean. You get a finished window, not a gap you have to hire a carpenter to close.
Permit Handling
If your job requires a City of Los Angeles permit, we pull it and schedule the inspection. You do not stand in line at the building department.
Final Walkthrough
We test every sash, check locks and screens, clean the glass, and walk the job with you before we leave. Anything off gets fixed that day.
What Composite Window Replacement Los Angeles CA Actually Involves
Composite Window Replacement Los Angeles CA is the removal of your existing window units and the installation of new frames built from engineered composite material, a blend of wood fiber, polymers, and resin that behaves like wood on the saw but performs like fiberglass in the wall. We pull the old sash, inspect the rough opening for rot or water damage, set new window setting blocks, shim the frame level, and seal everything with flashing tape and silicone caulk. Low-E glass and argon gas fill come standard on most units we install, so the thermal jump is immediate.
Los Angeles homes take a specific beating: UV that bakes vinyl until it chalks, marine-layer moisture in Santa Monica and Venice that swells wood frames, and dry Santa Ana heat that shrinks weatherstripping. If your windows are drafty, your glass is foggy from broken seals, or your frames are soft around the sill, composite window replacement in Los Angeles, California is the fix that stops the cycle. We see it constantly in 1950s tract homes across the Valley and in older Craftsman bungalows near Pasadena.
Our Composite Window Installation Process
Every job follows the same five steps, whether it is one window or the whole house. You know what happens each day before we start.
01
Schedule
Call or book online — a real human picks up and confirms a 2-hour arrival window.
02
Diagnose
Licensed tech inspects on-site, then walks you through the cause and your options.
03
Fix
The job is completed to code and done right the first time — no shortcuts, no surprises.
04
Guarantee
Every job backed by a written workmanship warranty — and we stand behind it.
Tools and Methods We Use
Tools & Equipment
Tape measure and 4-foot level
Every opening is measured three ways and checked for square before we order. A window that is out of level by a quarter inch will stick within a year.
Pry bar and utility knife
Used to remove the old sash and frame without damaging the surrounding stucco, drywall, or trim. Clean removal saves you repair cost.
Caulking gun and silicone caulk
Seals the interior and exterior perimeter joints. We use silicone, not painter's caulk, because it holds up to UV and moisture for years.
Flashing tape
Applied over the nailing fin to shed water away from the rough opening. This is the single most important water-management step on the install.
Window setting blocks and shims
Position the unit so the sash operates smoothly and the frame carries load at the right points. Wrong blocking is why cheap installs fail early.
Insulation gun
Fills the gap between the new frame and the rough framing with low-expansion foam. Stops air infiltration that caulk alone cannot seal.
Drill and screwdriver set
Fastens the frame to the rough framing and installs hardware, locks, and screens. We use stainless fasteners on coastal jobs.
Methods & Standards
AAMA installation standards
We follow AAMA 2400 and 2410 practices for window installation, which cover flashing sequence, fastener spacing, and water management. These are the standards manufacturers reference when they evaluate a warranty claim, so following them protects your coverage.
NFRC-rated performance specs
Every unit we sell carries an NFRC label listing U-factor, SHGC, and visible transmittance. We match the spec to the orientation of the window so west-facing glass gets a different package than north-facing glass.
Title 24 compliance
California energy code sets maximum U-factor and SHGC for replacement windows. We spec every job to pass Title 24 and provide the documentation your permit inspection will ask for.
ENERGY STAR certification
We stock and order ENERGY STAR certified units for the Southern California climate zone. That certification is your proof the window meets a verified efficiency threshold, not a marketing claim.
When Composite Window Replacement Makes Sense
01
A 1950s ranch home in Northridge with original wood windows that have been painted over six times and no longer open.
What we do: We measure all openings, order composite double hung units with woodgrain interiors to match the original trim, and replace the full frame where rot is present. Two-day install.
→ Windows open and close with one finger, the house looks period-correct from the street, and the owner stops paying for annual painter visits.
02
A Santa Monica condo two blocks from the beach where the marine layer has swollen the wood frames and the hardware is rusting.
What we do: Composite frames with stainless hardware and a coastal glass package. We flash the openings carefully and seal with marine-grade silicone caulk.
→ No more swelling, no rust streaks on the stucco, and the frames are still square after two full winters of coastal moisture.
03
A Woodland Hills two-story where the west-facing upstairs bedrooms hit 88 degrees in August even with the AC running.
What we do: We replace the six west-facing windows with composite units using low-E glass and argon fill, and add a solar-control coating on the two largest panes.
→ Upstairs rooms hold 74 to 76 degrees in the afternoon, and the AC cycles less. The owner measured a $70 monthly drop in summer cooling cost.
04
A rental property in Van Nuys with 14 mismatched windows, some vinyl, some aluminum, all leaking air.
What we do: We standardize the whole house on one composite profile with matching grids and hardware, replace all 14 units, and pull one permit for the job.
→ The property appraises higher, tenant complaints about drafts stop, and the owner has one warranty covering every window on the building.
How Composite Window Replacement Runs in Los Angeles
Los Angeles is not one climate. A window that performs in Santa Monica will fail in Woodland Hills, and a spec that works in Pasadena may be overkill in Culver City. We adjust the glass package, frame color, and flashing detail based on where you live. Coastal jobs get stainless hardware and marine-grade sealant because the salt air eats cheap fasteners. Inland Valley jobs get solar-control low-E glass and a composite frame that will not bow at 110 degrees. Every job we pull in the City of Los Angeles gets a permit and an inspection, and we build to Title 24 because the inspector will check. If you are comparing composite window installation cost Los Angeles quotes, ask each contractor what glass package and flashing method they are pricing. The cheap quote almost always skips the flashing tape and the insulation gun, and that is the difference between a window that lasts 30 years and one that leaks in year three.
Neighborhoods We Serve
-
Sherman Oaks
Mix of 1950s ranches and newer builds. We see a lot of original wood frames with sill rot from sprinkler overspray, which composite replacement solves permanently.
-
Santa Monica
Marine layer and salt air. We spec stainless hardware and coastal-rated sealants on every job west of Lincoln Blvd.
-
Woodland Hills
Inland heat pushes 105 to 110 in August. Solar-control low-E glass and composite frames are the standard spec here.
-
Pasadena
Historic districts with Craftsman and Spanish Revival homes. We match original sightlines and use woodgrain composite to keep the character.
-
North Hollywood
Older bungalows and small apartment buildings. Many have aluminum sliders that sweat and leak air. Composite sliders fix both problems.
Local Conditions We Plan For
-
UV exposure that chalks vinyl and dries wood
Vinyl frames fade and crack after 10 to 15 years in direct sun. Wood frames dry, shrink, and open gaps at the joints. Composite holds color and dimension far longer.
-
Marine layer moisture along the coast
Constant damp swells wood frames and rusts cheap hardware. Composite does not absorb water, and we use stainless fasteners on coastal jobs.
-
Santa Ana winds and dry heat
Low humidity shrinks weatherstripping and opens air gaps. We install composite frames with modern bulb and fin seals that stay compressed through dry spells.
-
Subterranean termite pressure countywide
Los Angeles County has active termite populations year-round. Composite frames contain no cellulose, so they are not a food source.
Sherman Oaks Ranch Full-House Swap
Composite Window Replacement Near Me Los Angeles Problems We Fix
Most of our calls start with one of these five problems. Composite replacement solves all of them in a single visit.
Problem
Foggy glass from broken seals
A failed seal lets moisture between the panes, which kills the insulating value and blocks your view. The window is now a single-pane performer with a double-pane price tag.
Our Fix
We replace the entire unit with a new composite window and a fresh sealed glass pack. No resealing the old IGU, which never holds. You get clear glass and the U-factor back on day one.
Problem
Rotted or soft window frames
Rot spreads into the rough framing and sheathing. Left alone, it invites termites and eventually compromises the wall structure around the opening.
Our Fix
We remove the window, cut out the rot, sister in new framing, and set a composite unit that will not rot again. Composite has no cellulose, so termites and moisture have nothing to eat.
Problem
Drafty windows and high cooling bills
Air leaks around the sash and through single-pane glass force your AC to run longer. In a Woodland Hills summer, that can add $80 to $150 a month to the bill.
Our Fix
Composite frames plus low-E glass and argon fill cut heat gain by 50 to 70 percent. We also air-seal the perimeter so the frame itself stops leaking.
Problem
Sticking or hard-to-open windows
Swollen wood and warped vinyl make sashes jam. You stop opening them, which kills ventilation and traps heat inside.
Our Fix
Composite holds its shape through heat and moisture swings, so sashes keep gliding. We set every unit level and shimmed, and we test operation before we leave.
Problem
Street noise coming through the glass
Single-pane windows do almost nothing to block traffic noise. Homes near freeways, boulevards, and flight paths feel it every night.
Our Fix
We spec laminated or double-pane composite units with a wider air gap for sound control. Customers near Ventura Blvd and the 101 routinely report a major drop in night noise.
Why Los Angeles Homeowners Choose Composite Frames
Composite solves the three problems that kill wood, vinyl, and aluminum windows in Southern California: moisture, UV, and pests. Here is what that means for your house.
-
Rot and Termite Proof
Composite frames contain no edible cellulose, so termites and dry rot leave them alone. In Los Angeles County, where subterranean termites are active year-round, that alone saves Sherman Oaks and Encino homeowners thousands in future frame repairs. We have pulled 40-year-old composite units that still tested solid at the sill.
-
Cuts Cooling Costs
A single-pane aluminum window can push your AC harder than any other surface in the house. Pairing composite frames with low-E glass and argon gas typically drops heat gain through glass by 50 to 70 percent. Customers in Woodland Hills routinely tell us their upstairs rooms finally hold temperature in August.
-
Stable in Extreme Heat
Vinyl expands and contracts with Valley temperature swings and eventually cracks at the weld. Composite moves far less, so sashes keep sliding smoothly and seals stay tight through 110-degree afternoons. That stability is why composite window replacement services Los Angeles CA homeowners book most often are the ones spec'd for inland heat.
-
Paintable, Real Wood Look
Composite takes paint like wood and can be ordered with a woodgrain interior finish that matches original trim in older Los Angeles homes. If you are restoring a 1920s bungalow in Highland Park or a mid-century ranch in Northridge, you keep the character without the maintenance calendar wood demands.
Licensed, Insured, and Locally Proven
Licensed & Certified
- California Contractor License — issued by California State License Board (CSLB)
- ENERGY STAR Partner — issued by U.S. Environmental Protection Agency
- AAMA Member — issued by American Architectural Manufacturers Association
- WDMA Member — issued by Window and Door Manufacturers Association
- OSHA-Compliant Job Sites — issued by Occupational Safety and Health Administration
Verified Reviews
Google ★★★★★4.9
Measured on a Tuesday, quote in my inbox that night, install two weeks later. The crew was on time, cleaned up every day, and the composite windows look great. No surprises on the invoice. Highly recommend for anyone in the Valley.
Yelp ★★★★★4.8
We had three quotes. American Reliable was not the cheapest but they were the only ones who explained the flashing and insulation steps. Two years later, no leaks, no drafts, and the windows still operate like new. Worth paying for the right install.
BBB A+
Replaced 14 windows in our rental property in Van Nuys. One permit, one crew, one warranty covering everything. Tenant complaints about drafts stopped immediately. Professional from start to finish.
Google ★★★★★5.0
Coastal home in Santa Monica with rotted wood frames. They replaced with composite and stainless hardware. Two winters later, no swelling, no rust, no issues. The crew knew exactly how to flash a coastal opening.
16 Years Installing Windows in Los Angeles
American Reliable Windows & Doors has been installing windows across Los Angeles County since 2010. Our installers are trained on composite systems from Andersen, Pella, Marvin, Milgard, and Jeld-Wen, and we follow AAMA and WDMA installation standards on every job. We are a licensed California contractor, fully insured and bonded, and we work to NFRC-rated performance specs so the window you buy actually delivers the U-factor and SHGC numbers on the label. That matters in Los Angeles, where Title 24 energy rules are stricter than most of the country.
- 16 years serving Los Angeles County, from the San Fernando Valley to the Westside
- Factory-trained on Andersen, Pella, Marvin, Milgard, and Jeld-Wen composite lines
- AAMA and WDMA installation standards followed on every opening
- Licensed California contractor, insured and bonded
- Title 24 and ENERGY STAR compliance handled on every replacement
What Los Angeles Homeowners Say
Real experiences from customers who chose our Composite Window Replacement services.
“We had 11 original wood windows in a 1954 ranch house, and half of them had rot at the sill. American Reliable measured on a Tuesday and had the composite units in five weeks. Install crew was in and out in two days. No more foggy glass, and the street noise from Ventura Blvd dropped noticeably. Price matched the quote exactly.”
M
Marisol R.
Homeowner, Sherman Oaks
“Marine layer was destroying our wood frames every couple of years. Switched to composite and the frames have not moved in two winters. The crew flashed and sealed everything properly, which the last installer did not do. Our energy bill dropped about $60 a month in summer. Worth every dollar.”
D
David K.
Homeowner, Santa Monica
“Upstairs bedrooms were unbearable in August. We replaced six windows with composite and low-E glass. First summer after, the rooms actually held temperature and the AC stopped running nonstop. Installers were clean, polite, and walked me through every window before they left. Would use them again.”
P
Priya N.
Homeowner, Woodland Hills
Frequently Asked Questions About Composite Windows
Real answers to the questions we hear most often from local homeowners and property managers.
How much does Composite Window Replacement cost in Los Angeles?
Most composite window replacement in Los Angeles runs $850 to $1,800 per window installed in 2026, depending on size, glass package, and whether the rough opening needs repair. A full-house job of 12 windows typically lands between $11,000 and $20,000. Bay, bow, and custom-arch units price higher. We give you a fixed written quote after measuring, so the number does not move.
What is composite window installation in Los Angeles CA?
Composite window installation in Los Angeles CA means replacing your existing window with a unit built from an engineered wood-polymer-resin material instead of vinyl, aluminum, or solid wood. The frame resists rot, termites, and UV damage, and it holds paint. We remove the old unit, check the framing, set the new window level, flash and seal it, and finish the interior trim.
Who offers Composite Window Replacement near me in Los Angeles?
American Reliable Windows & Doors has offered composite window replacement near me in Los Angeles since 2010, covering the San Fernando Valley, Westside, and San Gabriel Valley. We are a licensed California contractor, insured and bonded, and we install composite lines from Andersen, Pella, Marvin, Milgard, and Jeld-Wen. Call +1 (747) 298-4287 for a free measure.
Are composite windows good for Los Angeles homes?
Yes. Composite is one of the best window materials for Los Angeles because it handles UV, marine moisture, and termites without the maintenance wood needs. It also meets Title 24 energy requirements when paired with low-E glass and argon fill. The only homes where we steer customers elsewhere are tight budget rentals, where vinyl makes more sense.
Related Window Services We Offer
Full Frame Window Replacement
When the existing frame is rotted or the opening is out of square, full frame replacement is the right call. We remove the entire unit down to the rough framing, repair any damage, and set a new composite window with a fresh nailing fin and flashing. Common in older Los Angeles homes with original 1950s wood frames.
View Full Frame Window ReplacementRetrofit Window Replacement
Retrofit replacement keeps your existing interior and exterior trim and drops a new composite unit into the opening. It is faster and less invasive than full frame, and it works well when your original frame is still solid. We measure carefully so the new sash matches the old sightlines.
View Retrofit Window ReplacementInsert Window Replacement
Insert windows fit inside the existing frame pocket, which means no drywall or stucco repair. For Los Angeles homeowners who want composite performance without touching interior finishes, insert replacement is the cleanest option. We check the old frame first to confirm it can carry the new unit.
View Insert Window ReplacementWindow Sash Replacement
If your frame is composite or solid wood but the sash is failing, sash-only replacement saves money. We build new composite sashes to match your existing frame, install fresh weatherstripping, and rehang the balances. Good option for double hung units where only the moving parts have worn out.
View Window Sash ReplacementDouble Hung Window Replacement
Double hung is the most common window style in Los Angeles homes. Both sashes slide, which makes cleaning second-story windows easy and lets you control airflow. We install composite double hung units with tilt-in sashes, low-E glass, and optional grids to match your home's original look.
View Double Hung Window ReplacementSingle Hung Window Replacement
Single hung windows have a fixed upper sash and a sliding lower sash. They cost less than double hung and seal tighter because there is one moving part. For bedrooms, hallways, and rentals across Los Angeles County, composite single hung is a strong value pick.
View Single Hung Window ReplacementContact American Reliable Windows & Doors
Call +1 (747) 298-4287 or email us and we will get you on the schedule. We answer the phone seven days a week and can usually book a same-day estimate if you reach us before noon. Tell us how many windows, what material you are leaning toward, and whether anything is broken or leaking.
American Reliable Windows & Doors
-
Phone
+1 (747) 298-4287 -
Address
6161 Van Nuys Blvd Van Nuys, CA 91401, Los Angeles, California
-
Hours
Mon–Fri: 7AM – 7PM
Sat: 8AM – 4PM
Sun: Emergency Only
24/7 Emergency Available