Window Replacement Cost - Free In-Home Measure, Written Price

Every visit starts with

Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style

Styles & brands we work with

‹

›

Before & after – our own jobs

‹

BeforeAfter

BeforeAfter

BeforeAfter

›

How Much Does Window Replacement Cost in Los Angeles?

Window Replacement in Los Angeles typically costs $850 to $2,400 per window installed for standard vinyl or aluminum units, and $1,500 to $4,200 per window once you move into impact-rated glass, wood-clad frames, or custom sizes. A full whole-home project – say 12 to 18 windows in a 1960s ranch house in Van Nuys or a Spanish bungalow in Highland Park – usually lands between $14,000 and $38,000. Those numbers include materials, labor, disposal, and permits where the city or county requires them. They don’t include structural repairs, which we scope separately and price in writing before anything gets ordered.

If you’re reading this on your phone while a contractor sits in your living room, here’s the short version: get the number in writing before work starts. Every Juniper project gets a locked written price, and that price doesn’t move. Call (682) 281-2168 for a free estimate.

Window Replacement Cost Breakdown (2026)

Los Angeles pricing splits into materials, labor, and the extras that catch people off guard. Here’s what we see on real jobs across the city this year:

What pushes a job toward the top of those ranges? Impact-rated glass is the biggest single jump, and in Los Angeles that’s often not optional – more on that below. Custom sizing on older homes adds cost because almost nothing in a 1920s Craftsman was built to a modern standard dimension. Second-story windows, tile roofs, and aluminum wiring near the opening all add labor. What pulls costs down: standard sizes, single-story access, choosing from stocked product lines instead of full custom, and replacing during the dry season when scheduling is easier.

We carry eight product lines – PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux – which means we’re matching a window to your house, not upselling you into the one brand we happen to stock. If a $950 CGI unit does the job, that’s what you’ll see on the quote. See our full Window Replacement in Los Angeles page for how a project runs start to finish.

What Affects Window Replacement Pricing in Los Angeles

Pricing here isn’t the same as pricing in Phoenix or Dallas. Six factors move the number most:

• Wildfire-urban interface (WUI) requirements. Homes in the hills – Hollywood Hills, Sherman Oaks south of the 101, Porter Ranch, much of the Santa Monica Mountains – often fall under WUI building codes that require impact-rated or ignition-resistant assemblies. That’s a real cost adder, usually $400 to $1,000 more per opening. It’s also the kind of thing a vague quote conveniently forgets until the permit gets pulled.
• Coastal salt air and marine layer. If you’re in Santa Monica, Venice, or San Pedro, the salt and constant moisture punish cheap frames and hardware. We routinely see aluminum sill corrosion on 15-year-old windows in these neighborhoods. Upgrading to a marine-grade finish costs more up front and saves a full re-replacement a decade early.
• Framing and stucco type. LA’s building stock is a grab bag: 1920s wood frame, 1950s stucco over metal lath, 1980s tract homes. Stucco cutback and re-patch on a mid-century ranch runs higher than a simple interior trim on a newer build.
• Window count and whether you’re bundling. Per-window labor drops when windows are grouped. A 16-window house costs less per window than a 4-window job, simply because setup and teardown get spread across more openings.
• Glass package. Double-pane Low-E with argon is baseline now. Triple-pane, laminated glass, or tinted options for west-facing rooms that bake in the afternoon add cost but cut cooling load – useful when you’re staring down another September of 100-degree days in the Valley.
• Permits and HOA approval. The City of LA requires permits for most replacements that change the opening size, and many HOAs – especially condos in Century City, Marina del Rey, and Downtown – require architectural review. HOA review can add weeks to the timeline; factor that into scheduling, not cost, but know it’s coming.

One local pattern worth naming: in neighborhoods like North Hollywood and Glassell Park, we regularly see spring and fall hardware failures on east-facing windows, because the morning sun and the marine-layer moisture cycle work the frames harder than most homeowners expect. It’s a maintenance reality specific to this climate, and it’s the kind of wear a cheap window handles badly.

How to Save on Window Replacement

There’s no magic coupon for this trade. But there are real ways to keep the number down without cutting corners that cost you later.

• Replace in the dry season. Late spring through early fall means no rain delays, which keeps labor hours predictable. Scheduling flexibility in LA is genuinely worth a few hundred dollars per project.
• Standardize where you can. If a room doesn’t need a custom size, don’t pay for one. Sticking to manufacturer standard sizes on even half your openings can save $150 to $400 per window.
• Fix, don’t replace, when it makes sense. A single failed sash or a fogged double-pane unit can often be repaired or reglazed for a fraction of a full replacement. If the frame is sound, ask whether a partial is the smarter call.
• Bundle the whole house. The per-window price drops on larger projects because setup, scaffolding, and haul-away are shared.
• Get three written prices and compare line items. The lowest number isn’t always the lowest cost. Compare what’s included: permits, patching, disposal, warranty length, and whether the price is locked or “subject to change.”
• Ask what the warranty actually covers. Our 365-Day Done Right Promise covers parts and labor for a full year after installation, in writing. A window with a three-month workmanship guarantee at a lower price is not the cheaper option.

Free estimates cost you nothing and take about an hour. Call (682) 281-2168 and we’ll put a written number in front of you before any work starts.

FAQs – Window Replacement Cost

How much does it cost to replace a single window in Los Angeles?

A single standard vinyl window installed in Los Angeles runs $850 to $1,400, all-in. Impact-rated glass, custom sizing, or second-story access pushes that toward $1,500 to $2,900. Call (682) 281-2168 for an exact quote on your specific window – estimates are free.

Is it cheaper to repair or replace a window?

Repair wins if the frame is solid and only the glass, sash, or hardware is failing – typically $150 to $600 versus $850 and up for a full replacement. Replace when the frame is rotted, the seal has failed across the whole unit, or you need to upgrade for impact or energy reasons. Call (682) 281-2168 and we’ll tell you honestly which one your window needs.

Do I need a permit to replace windows in Los Angeles?

Yes for most replacements. The City of LA generally requires a permit when you’re changing the size of the opening, altering the structure, or doing a full replacement, with fees typically running $200 to $900 per project. Like-for-like swaps in some cases qualify for a simpler path. We handle the permit pull as part of the job. Call (682) 281-2168 to find out what your address needs.

How long does window replacement take?

A typical 12- to 18-window Los Angeles home takes two to four days on site once materials arrive. Order lead times add three to eight weeks depending on the product line and whether it’s custom or standard. Impact-rated and custom orders sit at the longer end. Call (682) 281-2168 for a real timeline based on your window count and product choice.

Are impact-rated windows required in Los Angeles?

Not everywhere, but in many hillside and WUI-designated areas, yes – impact-rated or ignition-resistant assemblies are required by code, and they cost $400 to $1,000 more per opening than standard units. If your home sits in a fire zone, this isn’t an upgrade you can skip. Call (682) 281-2168 and we’ll check your address against current requirements.

Can you come today?

Estimates are usually available within a day or two, and our phone line is answered by a live person 24/7. Call (682) 281-2168 and we’ll get you on the schedule, with a live arrival time so you’re not sitting around waiting.

The Juniper Difference on Every Los Angeles Project

Juniper Windows & Doors has been installing windows since 2001 as part of the Relay Home Co. family. Two commitments govern every job we do: a written price before any work starts, and the 365-Day Done Right Promise – if it isn’t right, we make it right, for a full year, covered in writing. You’ll know exactly who’s coming to your door: background-checked, uniformed technicians on every job. You’ll get before-and-after photos and a digital invoice you can pay from a link. And if a repair ever fails, the second visit is free.

Windows and doors only. We don’t do general remodeling or unrelated trades, which means all our attention goes into getting this one thing right across the eight product lines we carry: PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux.

Free estimates. Real numbers in writing. Start by exploring our home page or calling (682) 281-2168.

Written by Sean Mackey, Owner at Juniper Windows & Doors, serving Los Angeles since 2001.

Pricing reflects the Los Angeles market as of 2026. Juniper Windows & Doors offers free estimates – call (682) 281-2168.