Tear-Out and Disposal
We remove the old sash and frame, protect your floors and furniture with drop cloths, and haul the old units away. No pile of windows on your curb and no dumpster sitting in your driveway for a week.
Licensed
Licensed & Bonded
Fully Insured
Insured & Bonded
24/7 Emergency
Same-Day Response
Warranty Backed
16+ Years Trusted in Los Angeles
What Our Single Hung Window Replacement Includes
Every job includes the full install, not just the window. We handle tear-out, framing checks, flashing, insulation, sealing, and cleanup. You do not need to hire a separate carpenter or handyman. Here is what is covered on a standard single hung replacement.
Frame and Sill Inspection
Before the new unit goes in, we check the rough opening for rot, water staining, and out-of-square corners. If we find damage, we show you and quote the repair before we proceed. Hidden rot is the number one reason a cheap install fails.
New Window and Glass Package
Your new single hung unit comes with the frame material, glass package, and grid pattern you chose. Low-E glass and argon fill are standard on our quotes. We confirm the NFRC rating on the unit matches what you ordered before it goes in.
Flashing and Weather Sealing
We install flashing tape around the opening, seal the perimeter with silicone caulk, and insulate the gap with low-expansion foam. This is the step that keeps water out during the rainy season and stops air leaks year-round.
Hardware and Operation Check
New balances, lock, and screen come with the unit. We open and close every sash, confirm the lock engages, and check that the window drains properly. You test it yourself before we pack up.
Cleanup and Walkthrough
We clean the glass inside and out, sweep the work area, and walk the job with you. Any issue you spot gets fixed before we leave. You get the manufacturer warranty paperwork and our workmanship warranty in writing.
Single Hung Window Replacement Los Angeles CA, Explained
Single hung window replacement is the removal and replacement of a window with one operable sash that slides up and down in a fixed frame, with the upper sash permanently set. In most Los Angeles homes we pull the old sash, inspect the frame for rot or water damage, then install a new vinyl, fiberglass, or wood unit with fresh weatherstripping, low-E glass, and a sealed sill. A standard bedroom window takes two to four hours from tear-out to final caulk.
Los Angeles homes built between 1920 and 1970 make up most of our single hung window replacement in Los Angeles, California work. Original wood frames dry out, crack, and let in dust from the 405 and 101. Vinyl frames from the 1980s warp after decades of UV. When you search for single hung window replacement near me Los Angeles, you are usually dealing with foggy glass, a sash that will not stay up, or a winter draft you can feel from three feet away.
How Our Single Hung Window Installation Works
Five steps from first call to final walkthrough. No surprises, no mystery line items, no crew that disappears at lunch.
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 on Every Job
Tools & Equipment
Tape measure and level
Used at the measure visit and again on install day. We check the opening for square and level before ordering and before setting the unit, because a window set out of level will not seal or operate correctly.
Pry bar and utility knife
For clean tear-out of the old sash and frame without damaging the surrounding drywall or stucco. A careful removal saves patching and paint on the interior.
Caulking gun with silicone caulk
For sealing the exterior perimeter of the frame. Silicone holds up to UV and the temperature swings Los Angeles sees between a hot Valley afternoon and a cool night.
Window setting blocks and shims
Set under the sash to carry its weight and keep it square. Shims level the frame in the opening. Skip these and the sash sags and binds within a year.
Flashing tape
Applied around the rough opening before the window goes in. It sheds water that gets behind the exterior finish, which is the main path for leaks in Los Angeles rainy seasons.
Insulation gun and low-expansion foam
For filling the gap between the new frame and the rough opening. Low-expansion foam will not bow the frame the way standard foam can. It stops air infiltration and cuts noise.
Drill and screwdriver set
For fastening the frame to the wall framing through the nailing fin or jamb. We drive screws at the right depth so the frame stays true and the seal holds.
Methods & Standards
AAMA and WDMA installation standards
We install to the American Architectural Manufacturers Association and Window and Door Manufacturers Association specs for flashing, shimming, and sealing. These are the standards inspectors and manufacturers look for when a warranty claim comes up.
ENERGY STAR and NFRC performance matching
We match the window's NFRC rating to the climate zone your Los Angeles home sits in. ENERGY STAR labeled units meet the efficiency target for this area. We confirm the rating on the label before install.
California Title 24 compliance
California's building energy code sets requirements for replacement windows, including U-factor and solar heat gain limits. We select units that meet Title 24 for your climate zone so the job passes inspection and you qualify for any available rebates.
Flashing-first water management
We flash the opening before the window goes in, then seal the perimeter after. Water that gets behind the exterior finish drains out instead of sitting against the frame. This is the detail that cheap installs skip.
When to Replace a Single Hung Window in Los Angeles
01
A 1950s ranch home in Northridge with original single pane windows that sweat in winter and bake the rooms in summer.
What we do: We replace the single hung units with low-E, argon-filled windows in a matching frame color. We check the sills for rot and flash every opening. Most of these homes need eight to twelve windows done.
→ Rooms stay cooler in the afternoon, the glass stops sweating, and the cooling bill drops. The house looks updated without changing its character.
02
A Sherman Oaks homeowner preparing to sell and needing windows that pass a buyer's inspection.
What we do: We replace the failing single hung windows, fix the frames, and provide the manufacturer warranty paperwork and our workmanship warranty. We schedule the install to finish before the listing photos.
→ The windows open and close smoothly, the glass is clear, and the inspection report has no window findings. The seller avoids a price negotiation over deferred maintenance.
03
A Santa Monica home near a busy street where traffic noise keeps the front bedrooms unusable at night.
What we do: We install single hung windows with a laminated or heavier glass package that cuts sound transfer, and we seal the perimeter tight. We check the frame for gaps that let noise through.
→ The front bedrooms drop several decibels and become usable for sleep. The homeowner stops running a fan for white noise.
04
A Woodland Hills home with 1980s vinyl windows that have warped and no longer seal after decades of Valley heat.
What we do: We replace the warped units with new windows built for high-UV climates, using frames that hold their shape. We re-flash and re-insulate every opening.
→ The drafts stop, the sashes operate smoothly, and the new frames do not bow in the sun. The homeowner gets another 20-plus years out of the windows.
How Single Hung Window Replacement Runs in Los Angeles
Los Angeles is not one climate. A home in Woodland Hills sees summer highs over 100 degrees and full afternoon sun. A home in Santa Monica gets coastal fog and salt air. A home in Pasadena sits in the foothills with wind and heat. We pick the glass package and frame material for the address, not for a generic spec sheet. Building stock matters too. The bungalows and Spanish colonials built before 1960 have wood frames that have taken on water for decades, so we plan for rot repair on a lot of jobs. The 1970s and 1980s tract homes in the Valley often have aluminum or early vinyl frames that have warped or lost their seal. California Title 24 sets U-factor and solar heat gain limits for replacement windows, and we select units that meet the code for your climate zone. If you are searching for the best single hung window replacement company in Los Angeles, ask how they handle flashing and Title 24. That is where the real work shows.
Neighborhoods We Serve
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Sherman Oaks
Mix of 1950s ranches and newer builds. Many homes here still have original single pane windows that need replacement, and the summer heat makes low-E glass a clear upgrade.
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Woodland Hills
One of the hottest parts of the Valley. West-facing windows take heavy UV, so we spec frames and glass that hold up to sustained sun and high afternoon temperatures.
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North Hollywood
Older housing stock with a lot of wood frames. Rot repair is common here, and homes near the 170 and 101 benefit most from a tighter, quieter window.
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Santa Monica
Coastal fog and salt air work on hardware and frames. We use corrosion-resistant hardware and pay extra attention to sealing against moisture.
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Pasadena
Historic homes with character wood windows. We match the original look where the homeowner wants it and upgrade the glass and seals behind the scenes.
Local Conditions We Plan For
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Summer heat over 100 degrees in the San Fernando Valley
Drives demand for low-E glass and frames that resist warping. Cheap vinyl bows in this heat, which is why we spec units rated for high-UV climates on Valley jobs.
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Coastal fog and salt air on the Westside
Accelerates corrosion on hardware and can work into poorly sealed frames. We use corrosion-resistant hardware and seal the perimeter carefully on Santa Monica and Venice-area jobs.
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Older wood-frame housing stock built before 1960
Means rot repair is often part of the job. We plan for it at the measure visit so there are no surprises on install day and no delays waiting on parts.
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Freeway and boulevard noise across the city
Makes the sound performance of the glass package as important as the thermal rating. We offer laminated and heavier glass options for homes near major roads.
Foggy 1960s Ranch Windows in Northridge
Window Problems We Fix for Los Angeles Homeowners
Most single hung windows we replace are failing in one of a few predictable ways. Here is what we see on Los Angeles jobs and how we fix it.
Problem
Foggy glass and condensation between panes
The seal has failed and moisture is trapped inside the unit. The window no longer insulates, and the haze only gets worse. Cleaning will not fix it because the fog is inside the glass.
Our Fix
We replace the failed insulated glass unit with a new one, or replace the whole window if the frame is also compromised. New low-E glass with argon fill restores the thermal performance and clears the view.
Problem
Drafty windows you can feel from across the room
Air leaks around the sash and frame drive up cooling costs in summer and let in dust and street noise. In a Los Angeles home near a freeway, the draft and the noise come together.
Our Fix
We pull the old unit, check the frame, and install a new window with fresh weatherstripping, flashing tape, and low-expansion foam at the perimeter. The seal is the fix, not a caulk bead over a bad frame.
Problem
Rotted wood frames and sills
Water gets behind the frame, softens the wood, and spreads. Left alone, rot reaches the wall framing and turns a window job into a carpentry job. It also invites termites.
Our Fix
We open the wall around the window, cut out the rot, and repair the framing before the new unit goes in. Then we flash and seal it properly so the same water path does not come back.
Problem
Sashes that stick, jam, or will not stay up
Broken balances and warped frames make the window hard to open and dangerous to leave up. A sash that slams down is a real injury risk, especially in a child's bedroom.
Our Fix
We replace the unit with new balances and a frame that is square and true. The sash holds at any height, the lock engages, and the window opens with one hand.
Why Los Angeles Homeowners Replace Single Hung Windows
A new single hung unit does more than look clean. It cuts heat gain, seals out noise, and drops your cooling bill. Here is what changes once the old sash is gone.
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Lower Summer Cooling Bills
Low-E glass with argon gas blocks a large share of solar heat before it enters the room. On a west-facing San Fernando Valley bedroom, that alone can drop afternoon indoor temps by several degrees and cut air conditioner runtime by hours per week. Most customers notice the difference on their first July bill.
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Quieter Rooms, Day and Night
A tight sash with fresh weatherstripping and a sealed frame cuts outside noise noticeably. Homes near the 101, the 170, or a busy boulevard in North Hollywood feel the change fastest. Bedrooms facing the street become usable again without a fan running for white noise.
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No More Foggy or Leaking Glass
Fog between panes means the seal failed and moisture is trapped inside the unit. That window is done. We replace it with a new insulated glass unit, reseal the frame, and check the sill for water staining so the next rain does not find a path inside.
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Smooth, Safe Operation
Sticking sashes and broken balances are a real safety issue, especially in second-story bedrooms. We install new balances, check the lock, and confirm the sash holds at any height. You get a window a kid can open without a fight and a lock that actually engages.
Licensed, Insured, and Proven in Los Angeles
Licensed & Certified
- California Contractor License — issued by California State License Board (CSLB)
- ENERGY STAR Partner — issued by U.S. Environmental Protection Agency
- AAMA Certified Installation — issued by American Architectural Manufacturers Association
- NFRC Rated Products — issued by National Fenestration Rating Council
- Fully Insured and Bonded — issued by State of California
Verified Reviews
Google ★★★★★4.9
Replaced ten single hung windows in our Encino home. Measured on a Monday, quote that night, install the following week. The crew was on time, clean, and showed us a rotted sill before fixing it. No pressure, no upsell. The house is quieter and cooler.
Yelp ★★★★★4.8
We had foggy windows in three bedrooms and a sash that would not stay up. They replaced all of them in one day and hauled the old units away. Fair price and the work looks solid. The sashes glide now.
BBB A+
Used them for a full-house single hung replacement in Tarzana. Sixteen windows, two days, no mess left behind. They flashed and sealed every opening and gave us the warranty paperwork. Would hire again.
Google ★★★★★5.0
Called about a broken window after a break-in and they got us scheduled fast. Replaced the single hung unit and matched the existing frame color. Professional from the first call to the final walkthrough.
What Los Angeles Homeowners Say
Real experiences from customers who chose our Single Hung Window Replacement services.
“We had six single hung windows in the back of the house that were foggy and would not stay open. The crew measured on a Tuesday and had the quote to us that night. Install took one day. The bedrooms are noticeably quieter now, and the sashes actually stay where you put them. Clean job, no mess left behind.”
M
Marisol R.
Homeowner, Sherman Oaks
“Our 1940s house had original wood frames with rot at the sills. They showed me the damage before they fixed it and did not try to upsell the whole house. Replaced eight single hung windows, flashed and sealed every one. First rain after the install, no leaks. Fair price for the work.”
D
Daniel K.
Homeowner, North Hollywood
“West-facing windows in the Valley get brutal sun. The old vinyl had warped and the glass was shot. New low-E units went in over two days. The upstairs rooms are cooler in the afternoon and the AC runs less. They cleaned up and hauled the old windows away. Would use them again.”
P
Priya S.
Homeowner, Woodland Hills
Frequently Asked Questions
Real answers to the questions we hear most often from local homeowners and property managers.
How much does Single Hung Window Replacement cost in Los Angeles?
Most single hung windows in Los Angeles run $450 to $1,100 installed per opening in 2026, depending on size, frame material, and glass package. Vinyl sits at the low end, fiberglass and wood at the high end. Second-story access, rot repair, and custom sizes add cost. We give you a written per-window price before any work starts.
What is single hung window installation in Los Angeles CA?
It is the replacement of a window that has one sliding sash, usually the bottom one, with the top sash fixed in place. We remove the old unit, check the frame, and set a new one with fresh flashing, insulation, and low-E glass. A standard opening takes two to four hours. Most full-home jobs finish in one to two days.
Who offers Single Hung Window Replacement near me in Los Angeles?
We do, across Los Angeles County. American Reliable Windows & Doors has served the area since 2010 from our base in the San Fernando Valley. We cover Sherman Oaks, Woodland Hills, North Hollywood, Santa Monica, Pasadena, Beverly Hills, and the surrounding neighborhoods. Call +1 (747) 298-4287 and we will schedule a measure.
Are single hung windows good for Los Angeles homes?
Yes, for most rooms. They cost less than double hung, seal well, and fit the window openings in the bungalows and ranches that dominate Los Angeles housing stock. The one trade-off is that you cannot tilt them in for cleaning from inside. For upstairs windows or hard-to-reach spots, we often recommend double hung instead.
Related Services
Full Frame Window Replacement
When the frame itself is rotted or out of square, a full frame replacement pulls the entire unit down to the rough opening. We recommend it on older Los Angeles homes where the original wood has taken on water for decades. It costs more than a single hung swap but fixes the real problem.
View Full Frame Window ReplacementRetrofit Window Replacement
A retrofit keeps your existing frame and drops a new window into it. It is faster and cheaper than full frame work, and it is the right call when your Los Angeles home still has a solid, square frame. We measure the opening carefully so the new unit seats tight.
View Retrofit Window ReplacementInsert Window Replacement
Insert windows fit inside the existing jamb without disturbing interior or exterior trim. For a single hung window in a finished room, this saves paint and patching. We check the sill and frame first, because an insert over a soft frame is a waste of money.
View Insert Window ReplacementWindow Sash Replacement
If only the moving sash is failing and the frame is sound, a sash replacement is the cheapest fix. We build or order a matching sash, install new balances, and reuse the frame. It is a good option for historic Los Angeles homes where you want to keep the original look.
View Window Sash ReplacementDouble Hung Window Replacement
Double hung windows slide both up and down and tilt in for cleaning. If you have second-story windows in a Los Angeles home or hard-to-reach spots over a stairwell, the tilt-in feature pays for itself. We quote both options side by side so you can compare.
View Double Hung Window ReplacementCasement Window Replacement
Casement windows crank open outward and seal tighter than any slider. For a kitchen or a room where you want maximum airflow and a hard seal against wind, they beat single hung. We install them with the same flashing and insulation detail.
View Casement 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
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Phone
+1 (747) 298-4287 -
Address
6161 Van Nuys Blvd Van Nuys, CA 91401, Los Angeles, California
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Hours
Mon–Fri: 7AM – 7PM
Sat: 8AM – 4PM
Sun: Emergency Only
24/7 Emergency Available