New Bay Window Unit
Your choice of vinyl, fiberglass, wood, aluminum, or composite, with the glass package you pick, including low-E and argon where it qualifies. We order to your exact rough opening measurement, not a stock size that leaves gaps.
Licensed
Licensed & Bonded
Fully Insured
Insured & Bonded
24/7 Emergency
Same-Day Response
Warranty Backed
16+ Years Trusted in Los Angeles
What Our Bay Window Replacement Service Includes
Every bay window job we run includes the unit, the labor, the sealing, and the cleanup. We quote it as one price so you are not adding line items later. Here is what is covered on a standard replacement.
Full Tear-Out and Disposal
We remove the old unit, haul it away, and dispose of it. No dumpster sitting in your driveway for a week. Tear-out on a standard bay takes two to three hours, and we protect the floor and furniture before we start.
Flashing, Caulk, and Insulation
New flashing tape at the head and sill, silicone caulk at every exterior joint, and insulation packed around the frame. This is the part that keeps water out and stops the draft, and we do not skip it to save an hour.
Interior Trim Reinstall
We put the interior trim back and caulk it clean. If your trim was damaged or you want a new profile, we can supply and install new trim as an add-on, quoted before we start.
Permit Handling
Where the city requires a permit for window replacement, we pull it and coordinate the inspection. You do not have to stand in line at the building department or chase an inspector.
Walkthrough and Warranty
We walk the finished job with you, show you how the unit opens and latches, and hand over the manufacturer warranty plus our workmanship warranty. If something is off, you call us and we come back.
Bay Window Replacement Los Angeles CA: What the Job Actually Involves
Bay Window Replacement Los Angeles CA is the full removal and reinstallation of a projecting three-panel window unit, including the frame, glass, flashing, and interior trim. It is not a glass swap. We cut the old unit free with a pry bar and utility knife, inspect the rough opening for water damage, then set the new bay on shims and window setting blocks so it sits level and square. Flashing tape, silicone caulk, and an insulation gun close every gap before the trim goes back on.
Most Los Angeles homes need this work for the same handful of reasons: foggy glass from a broken seal, rotted window frames behind the drywall, sticking windows that no longer crank open, and drafts you can feel from three feet away. If you have been searching for bay window replacement near me Los Angeles, the fix is usually a full unit replacement, not a repair. We see it constantly in homes built between 1945 and 1985, where the original wood bays have taken forty-plus years of UV and marine-layer moisture.
Our Bay Window Installation Process, Step by Step
Five steps from your first call to the final walkthrough. Most single-bay jobs finish in one day, and we tell you the schedule up front so you can plan around it.
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.
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Guarantee
Every job backed by a written workmanship warranty — and we stand behind it.
Tools and Methods We Use on Every Bay Window
Tools & Equipment
Tape measure and 4-foot level
We measure the rough opening in three places and check level in both directions. A bay that is out of level by a quarter inch will stick and leak within a season.
Pry bar and utility knife
Used for clean tear-out. We cut the caulk line and pry the old unit free without tearing up the surrounding stucco or drywall more than necessary.
Caulking gun and silicone caulk
Silicone caulk seals the exterior perimeter against rain. We run a continuous bead at every joint, because a pinhole gap is where water gets in.
Flashing tape
Applied at the head and sill to shed water away from the opening. This is the single most important detail for keeping a bay window dry in Los Angeles rain.
Window setting blocks and shims
Setting blocks hold the glass unit off the frame bottom so it does not sit in water. Shims square the unit in the opening before fastening.
Insulation gun
Packs insulation into the gap between the frame and the rough opening. This is what stops the draft that a caulk line alone will not fix.
Drill and screwdriver set
Used to fasten the unit to the framing and reinstall trim. We fasten to structure, not just to the sheathing, so the window stays put.
Methods & Standards
AAMA and WDMA installation standards
We follow the same installation standards manufacturers and inspectors reference, covering flashing, fastening, and sealing. That is why our bays pass inspection and stay dry. It also protects your manufacturer warranty, which can be voided by a sloppy install.
NFRC-rated glass selection
Every glass package we sell carries an NFRC rating, so the U-factor and solar heat gain numbers are real, not marketing. We match the rating to the orientation of your window, since a west-facing bay needs different glass than a north-facing one.
ENERGY STAR qualification check
Where a unit qualifies for ENERGY STAR, we note it on your quote. It matters for resale and, in some cases, for utility rebate programs. We do not claim the rating on units that do not carry it.
California code compliance on egress and glazing
If your bay is in a bedroom, we check egress size and opening requirements before ordering. We also spec safety glazing where code requires it. Getting this wrong means a failed inspection and a re-order.
When Los Angeles Homeowners Call Us for a Bay Window
01
A west-facing bay in an Encino living room bakes the room every afternoon from June through September.
What we do: We replace the unit with low-E glass and argon fill, which blocks a large share of solar heat gain. We also check the flashing, since west-facing walls take the worst of the sun and rain.
→ The room stays usable in the afternoon, and the AC runs shorter cycles. Most homeowners notice the difference the first hot week.
02
A 1920s bungalow in Santa Monica has a wood bay with peeling paint and soft trim near the sill.
What we do: We tear out the unit, replace the rotted framing, and install a fiberglass bay that handles the marine layer without constant painting. We match the interior trim to the original profile.
→ The character of the house stays intact, the rot is gone, and the window no longer needs repainting every couple of years.
03
A 1970s home in Northridge still has the original aluminum bay with fogged glass and a broken latch.
What we do: We replace the aluminum unit with a new bay in a matching slim profile, sealed and flashed to current standards. We handle the permit and the inspection.
→ The fog is gone, the window latches, and the exterior keeps its original mid-century look.
04
A homeowner in Woodland Hills is selling and the home inspector flagged the foggy bay window as a defect.
What we do: We measure, order, and install a new bay on a tight schedule so the sale does not stall. We provide the warranty paperwork for the buyer.
→ The inspection item is cleared, the front of the house looks sharper, and the sale moves forward without a price reduction.
How Bay Window Replacement Runs in Los Angeles
Los Angeles is hard on windows in a specific way. The sun is strong, the marine layer pushes moisture against west-facing walls, and the temperature swing between a cool Santa Monica morning and a hot Woodland Hills afternoon works the frame and seal on every unit. On top of that, the housing stock is old. A lot of the bays we replace went in between 1945 and 1985, and the original wood frames have taken decades of UV and rain. That is why we check the rough opening for rot on every job, not just the ones that look bad. We also work within California code on egress and safety glazing, and we pull permits where the city requires them. If you have been looking for bay window replacement 24/7 Los Angeles service after a storm knocked a tree limb into the glass, call us and we will tarp the opening and schedule the replacement. For a standard job, we measure, order, and install, usually within three to four weeks from the first visit.
Neighborhoods We Serve
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Sherman Oaks
A lot of postwar homes here still have original wood bays with fogged glass. We replace them with vinyl or fiberglass units that handle the Valley heat without repainting.
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Santa Monica
The marine layer keeps west-facing walls damp. We flash and caulk bays here more aggressively, and we often recommend fiberglass over wood for the moisture.
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Woodland Hills
Summer heat is the main driver. Low-E glass with argon makes the biggest difference on the west and south sides of the house.
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Pasadena
Older Craftsman and Spanish-style homes here often need trim matched to the original profile. We take the time to get the interior detail right.
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Beverly Hills
Many homes here have custom or oversized bays. We measure carefully and order to exact size, since a stock unit will not fit the opening.
Local Conditions We Plan For
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Strong UV and afternoon heat on west-facing walls
UV breaks down caulk and weatherstripping faster here than in milder climates. We spec low-E glass and re-caulk every exterior joint so the seal lasts through years of sun.
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Marine layer moisture near the coast
Constant damp on the west side rots wood frames and trim. We check for soft framing on every coastal job and flash the opening so water sheds away.
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Large day-night temperature swings in the Valley
Frames expand and contract with the swing, which can break glass seals and loosen hardware. Fiberglass and composite frames move less than vinyl, so we recommend them for exposed bays.
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Aging housing stock with original wood bays
Most of the bays we replace are 40 to 80 years old, and the framing behind the trim is often soft. We open the wall and inspect before we set the new unit.
Foggy Bay to Clear Glass in Encino
Bay Window Problems We Fix for Los Angeles Homes
Old bay windows fail in predictable ways. Here are the four we see most, what happens if you leave them, and how we fix them.
Problem
Foggy glass and condensation between panes
A failed seal lets moisture between the panes, which kills the view and the insulation value. The glass cannot be dried out or repaired, so the fog stays until the unit is replaced.
Our Fix
We replace the unit with sealed insulated glass, low-E coated and argon filled where it qualifies. New seals end the fog and restore the R-value. Most jobs are done in a single day.
Problem
Drafts you can feel from across the room
Worn weatherstripping and a warped sash let cold air in all winter and cooled air out all summer. Your HVAC runs longer, and the room stays uncomfortable no matter what the thermostat says.
Our Fix
We set a new unit square on shims, install fresh weatherstripping, and seal the perimeter with insulation and caulk. The draft stops at the frame, and the room holds temperature like the rest of the house.
Problem
Water leakage and rotted window frames
Water gets behind the trim, rots the header and sill, and can reach the floor below. Left alone, a $3,000 window job turns into a framing and drywall repair that costs far more.
Our Fix
We open the wall, replace any soft framing, then install new flashing tape and silicone caulk so rain sheds away from the opening. We show you the rot before we fix it, with a price for the repair.
Problem
Sticking, hard-to-open windows
A bay that will not crank or latch is a safety and ventilation problem, and it usually means the frame has shifted or the hardware has failed. Forcing it cracks glass and bends the sash.
Our Fix
We check whether the frame is sound before recommending a fix. If the unit is salvageable, we adjust hardware and sash. If the frame has moved, we replace the whole bay so it opens and latches the way it should.
Why Los Angeles Homeowners Replace Bay Windows
A new bay window does three jobs at once: it cuts your cooling bill, kills the draft, and gives the room back its light. Here is what you actually get.
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Lower Summer Cooling Bills
Low-E glass with argon gas blocks a large share of the heat that pours through old single-pane bays. In a west-facing Encino living room, that alone can drop afternoon indoor temps by several degrees, which means your AC runs shorter cycles from June through October instead of fighting the glass all day.
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No More Drafts or Fog
Broken seals and worn weatherstripping are why your bay feels cold in January and cloudy year-round. A new unit with fresh weatherstripping and sealed insulated glass ends condensation between panes and stops the draft that makes you close the door to that room. You get the square footage back.
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Stops Water and Rot
Water leakage around a bay window rots the header, the sill, and sometimes the floor below. We install new flashing and silicone caulk at every joint, so rain running down the wall sheds away from the opening. Catching rot early saves you a framing repair on top of the window cost.
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Curb Appeal and Resale
A bay window is one of the most visible features on the front of a house. Replacing a foggy, peeling unit with a clean vinyl or fiberglass bay sharpens the whole facade. Buyers notice, and appraisers count updated windows when they price a Los Angeles home against comparable sales on the same street.
Licensed, Insured, and Local Since 2010
Licensed & Certified
- California Contractor License — issued by California State License Board (CSLB)
- ENERGY STAR Partner standards — issued by U.S. Environmental Protection Agency and U.S. Department of Energy
- NFRC-rated products — issued by National Fenestration Rating Council
- AAMA installation standards — issued by American Architectural Manufacturers Association
- OSHA-compliant job sites — issued by Occupational Safety and Health Administration
Verified Reviews
Google ★★★★★4.9
Replaced a foggy bay window in our Sherman Oaks home. Measured carefully, quoted the same day, installed in one day. They found a little rot and showed me before fixing it. No drafts since, and the room is cooler.
Yelp ★★★★★4.8
We had three quotes for bay window replacement services in Los Angeles CA and these were the only ones who measured the rough opening. Clean install, permit handled, old unit hauled away. Would use again.
BBB ★★★★★4.9
Replaced a wood bay on our 1920s Santa Monica bungalow and matched the trim. Two winters in, no leaks. They came back once to adjust a latch at no charge. Straightforward crew.
Google ★★★★★5.0
Storm knocked a limb into our bay window in Woodland Hills. They tarped it the same day and had the replacement in within three weeks. Fair price, no runaround, cleaned up after themselves.
Sixteen Years of Window Work in Los Angeles
American Reliable Windows & Doors has been installing and replacing windows across Los Angeles since 2010. That is 16 years of working on the same housing stock you live in: 1920s Craftsman bungalows, postwar tract homes in the Valley, and mid-century builds with steel or aluminum frames. Our installers are trained on ENERGY STAR, NFRC, and AAMA standards, and every job is permitted and inspected where the city requires it. We hold a California Contractor License through the CSLB and carry full insurance. We do not subcontract your bay window to a day crew.
- 16 years in business, founded in 2010, working Los Angeles County homes the whole time.
- Installers trained to AAMA and WDMA installation standards, not just manufacturer instructions.
- Every unit we sell meets NFRC ratings and ENERGY STAR where the glass package qualifies.
- We pull permits and coordinate city inspections so you are not chasing paperwork.
- Full insurance and a California Contractor License through the CSLB on every job.
Reviews From Los Angeles Bay Window Jobs
Real experiences from customers who chose our Bay Window Replacement services.
“Our 1948 house had a bay window that fogged up every morning and leaked in the January rain. The crew found rotted framing behind the trim and showed me before they fixed it. New vinyl bay, low-E glass, sealed tight. The living room is noticeably cooler in the afternoon now, and the fog is gone.”
M
Marisol R.
Homeowner, Sherman Oaks
“I got three quotes for bay window replacement in Los Angeles, California and these guys were the only ones who actually measured the rough opening instead of eyeballing it. Install took one day. They pulled the permit, hauled the old unit away, and cleaned up better than they found it. No drafts since.”
D
Danny K.
Homeowner, Woodland Hills
“We replaced a wood bay on a 1920s bungalow and wanted to keep the character. They matched the trim, used a fiberglass unit, and flashed it properly against the marine layer. Two winters in, no leaks, no sticking. Worth every dollar, and they came back once to adjust a latch at no charge.”
P
Priya S.
Homeowner, Santa Monica
Frequently Asked Questions
Real answers to the questions we hear most often from local homeowners and property managers.
How much does Bay Window Replacement cost in Los Angeles?
Most bay window replacements in Los Angeles run $2,800 to $7,500 per unit in 2026, installed. A standard vinyl bay with low-E glass sits near the low end; fiberglass, wood, or oversized custom bays push toward the top. Rot repair, second-story access, and stucco patching add cost. We give you a written number the same day we measure.
What is bay window installation in Los Angeles CA and how long does it take?
Bay window installation in Los Angeles CA is the full process of removing the old projecting unit and setting a new one, sealed and trimmed. A single bay takes six to eight hours on site, usually one day. Custom units take two to four weeks to arrive after you order. We schedule the install the week your window lands.
Who offers Bay Window Replacement near me in Los Angeles?
American Reliable Windows & Doors offers bay window replacement services Los Angeles CA homeowners can schedule directly at +1 (747) 298-4287. We cover the Valley, the Westside, and the San Gabriel Valley, including Sherman Oaks, Northridge, Santa Monica, Pasadena, and Beverly Hills. Same-day estimates, no charge, and we pull the permit.
Do bay windows add value to Los Angeles homes?
Yes. Updated windows are one of the few home improvements that show up in both appraisals and buyer walkthroughs. A clean, sealed bay window improves curb appeal, cuts cooling costs, and removes a red flag a home inspector would write up. In a competitive Los Angeles market, that combination supports your asking price.
Related Services
Full Frame Window Replacement
When the framing around your bay is rotted or out of square, we replace the whole window and frame, not just the sash. This is the right call for older Los Angeles homes where the rough opening has taken decades of water.
View Full Frame Window ReplacementRetrofit Window Replacement
Retrofit replacement fits a new unit into your existing frame, which keeps interior trim intact and cuts labor time. It is a good match for a bay window with a sound frame and a failed glass seal.
View Retrofit Window ReplacementInsert Window Replacement
Insert windows drop into the existing frame with minimal tear-out. For a bay window in good structural shape, an insert can restore the seal and the look without touching the surrounding stucco or drywall.
View Insert Window ReplacementWindow Sash Replacement
If only the moving sash on your bay is damaged, sash replacement saves the cost of a full unit. We check the frame and seal first, because a new sash on a leaking frame will not solve the problem.
View Window Sash ReplacementDouble Hung Window Replacement
Most Los Angeles homes pair a bay window with double hung units elsewhere on the same wall. Matching glass packages and frame colors across the house keeps the exterior looking intentional.
View Double Hung Window ReplacementSingle Hung Window Replacement
Single hung windows cost less than double hung and work well in bedrooms and hallways. We often replace a bay and the flanking single hungs in one visit to keep the trim lines consistent.
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
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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