New Window Installation Cost - Free In-Home Measure, Written Price

How Much Does New Window Installation Cost in Los Angeles?

New window installation in Los Angeles typically costs $650 to $1,450 per window for a standard double-pane vinyl replacement, including labor and materials, as of 2026. Most single-family homes in LA neighborhoods like Silver Lake, Pasadena, and Torrance will see total project costs fall between $6,000 and $18,000 when replacing 8 to 14 windows at once. The wide spread comes down to frame material, glass package, the condition of existing openings, and whether the home sits in a hillside zone that triggers extra permitting or structural work.

Those are real numbers from the bids we write every week at Westlight Windows Los Angeles. Not national averages pulled from a survey. We price windows the way Angelenos actually buy them: by the opening, by the glass, and by what’s behind the stucco once the old frame comes out.

If you want the short version: a mid-range vinyl window in a standard LA tract home runs about $800 to $1,000 installed. Upgrade to fiberglass or a premium wood-clad frame, and you’re looking at $1,400 to $2,200 per window. Add impact-rated glass for wildfire or coastal zones, and the price climbs from there. Every quote from us is written down before any work starts, so you’ll know your exact number before you ever sign anything. Call (213) 810-3461 for a free estimate.

Key Takeaways

• Typical cost per window: $650 – $1,450 installed for vinyl double-pane; $1,400 – $2,200 for fiberglass or premium wood-clad.
• Average whole-home project (8 – 14 windows): $6,000 – $18,000 in Los Angeles.
• Budget path: White vinyl, double-pane, standard sizing, no structural repairs, single-story home on a flat lot.
• The biggest cost drivers: frame material, glass package (low-e, argon, impact rating), second-story work, stucco repair, and whether the existing frame is rotted or out of square.
• Why the LA market costs more than the national average: permit fees, hillside engineering requirements, older housing stock, and local labor rates.
• How to get an exact number: We write every price down before the job starts. No door-step revisions. Call (213) 810-3461.

New Window Installation Cost Breakdown (2026)

Here’s the line-item breakdown for Los Angeles as of 2026. These numbers come from the bids our team writes for homes across the city, from Mid-City bungalows to San Fernando Valley track homes to Palos Verdes view properties.

If you’re replacing a standard 10-window house with mid-grade vinyl, you’ll likely land between $8,000 and $11,000 in Los Angeles. That same house with fiberglass frames and upgraded glass can push toward $16,000 to $20,000. The good news: we hand you the line-item price before any work begins, so there’s no mystery about where the money goes.

For a full walkthrough of what installation involves in this market, take a look at our New Window Installation in Los Angeles page.

What Affects New Window Installation Pricing in Los Angeles

• Frame material. Vinyl is the budget workhorse. Fiberglass and wood-clad cost 2 – 3x more but handle LA’s sun and smog oxidation better. Aluminum, common on older mid-century homes, runs $500 – $800 per window but conducts heat poorly.
• Glass package. Standard double-pane with low-e (a thin coating that reflects heat back into the room in winter and out in summer) is the entry point. Add argon gas fill and you’re up $40 – $80 per window. Impact-rated glass for fire zones or coastal exposure adds $300 – $900 per unit.
• Home age and framing condition. LA housing stock skews older. A 1920s Spanish Revival in Echo Park or a 1950s ranch in the Valley often has rotted sills, out-of-square openings, or dry-rotted framing behind the stucco. Repairing that before the new window goes in adds $100 – $400 per opening.
• Multi-story and hillside work. Silver Lake, Echo Park, Mount Washington, and parts of Studio City have steep lots. Ladders, scaffolding, and extra labor add 15 – 30% to the installation cost. Flat lots in Torrance or Lakewood keep labor at the baseline.
• Permitting and code requirements for Los Angeles. The City of Los Angeles Department of Building and Safety requires permits for replacement windows when structural alterations are involved. Basic like-for-like swaps sometimes fly under the radar, but most whole-home jobs need a permit. Fees run $150 – $500 depending on scope. We handle this as part of the quote.
• Custom sizing and specialty shapes. Arched windows, picture windows, and unusual mid-century modern openings cost more. Standard stock sizes from our eight manufacturer lines (PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, ViewLux) keep prices lower.

How to Save on New Window Installation

You don’t have to overspend to get good windows in Los Angeles. The path to saving is less about hunting for discounts and more about making decisions that reduce labor and material waste.

1. Replace windows in batches. Replacing 10 windows at once costs less per window than replacing two at a time, because the crew is already on site, ladders are already up, and the trim work is already set up. Whole-home projects land at the lower end of the per-window range.
2. Stick with standard sizes. Custom sizing is where costs balloon. If the opening can accommodate a stock size from one of our eight manufacturer lines, you’ll pay less and wait less for delivery.
3. Choose vinyl unless you have a reason not to. Fiberglass and wood-clad look beautiful and last a long time in LA’s climate, but vinyl still delivers the best cost-to-performance ratio for most homes. A mid-range vinyl double-pane with low-e and argon is the sweet spot for energy savings without premium pricing.
4. Handle stucco issues proactively. If you know a section of stucco near a window is hairline-cracking, tell us before we quote. Patching costs the same either way, but planning for it means no surprise line item later.
5. Check for utility rebates. LADWP offers periodic rebates for energy-efficient window upgrades, typically $1 – $3 per square foot. It’s not huge money per window, but on a 10-window job it’s worth an extra phone call. We can point you to the current program.
6. Get a written price before work starts. This is the one that saves people from the worst overages: a contractor who quotes $8,000 and then shows up at the door with a revised $13,000 invoice. At Westlight, the price we write down is the price you pay. The Kingswell Guarantee means a written price, a committed arrival window, a clean job site, and a written guarantee on every completed job.

The fastest way to get your actual number is to call (213) 810-3461 and let us walk through your home with you. Free estimate. No obligation. A live person answers 24 hours a day, 7 days a week, and we’ll schedule a time that works around your schedule.

How the Process Works with Westlight Windows Los Angeles

We’re an independently owned and operated Kingswell location, and we’ve been installing windows and doors since 2009. Owen Satterfield leads our team, and he’s the person who set the standard we still work by: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, put the guarantee in writing, and come back if it fails.

The west light is the late-afternoon sun that pours through a good window, bright and warm and worth doing right. That’s where the name Westlight comes from, and it’s the standard we hold every installation to. Here’s what you can expect when you call:

1. You call, a human answers. Not a voicemail box, not a chatbot. 24/7. We schedule a site visit at a time that works for you.
2. We measure and assess. We look at the condition of the existing frames, check for dry rot or water damage, and note the home’s architectural style. A 1926 Spanish Colonial in Hancock Park gets a different recommendation than a 1972 ranch in Northridge, and we don’t pretend otherwise.
3. You get a written price. Line by line. Materials, labor, stucco work, permits, disposal. The Kingswell Way: every price in writing before a single screw turns.
4. We install on the schedule we agreed to. Background-checked, uniformed technicians on every job. You know exactly who is walking through the door.
5. We leave the site cleaner than we found it. Debris hauled away. Old windows gone. Floors swept.
6. You get a written guarantee. Every job, every time. If the work is not right within the guarantee period, we come back and fix it at no charge. That’s the 365-Day Done Right Promise, and it’s not a slogan. It’s in writing, handed to you at job completion.

For the full scope of what we do in this market, see our home page or the New Window Installation in Los Angeles service breakdown.

Popular Window Types and What They Cost in LA

Different homes call for different windows. Here’s what the common styles run in Los Angeles as of 2026.

Double-Hung Windows

The classic choice for Spanish Revival, Craftsman, and Colonial-style homes in neighborhoods like Hancock Park, Los Feliz, and Pasadena. Both sashes slide up and down, which makes them easy to clean from inside. Expect $650 to $1,100 per window installed for vinyl double-pane.

Sliding Windows

Common in mid-century and ranch homes across the San Fernando Valley and South Bay. They glide horizontally and work well for wide openings. Costs run $600 to $1,000 per window installed.

Casement Windows

Hinged at the side and cranked open. They seal tightly, so they’re a good fit for homes in windy canyon areas like Topanga or Malibu. Plan on $750 to $1,300 per window installed.

Picture Windows

Fixed glass, no opening mechanism. They’re the most affordable per square foot of glass but cost more when oversized. Expect $500 to $1,000 per window installed for standard sizes. Larger custom units in view homes run higher.

Bay and Bow Windows

These project outward and add interior space, but they involve structural work and custom framing. In Los Angeles, expect $2,500 to $6,500 per unit installed, including the framing and finish work.

We carry eight manufacturer lines: PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. That means we can match the right product to the job, rather than forcing the job to fit one brand. A coastal home in Mar Vista might get impact-rated CGI. A Valley ranch might get ECO Window Systems for the best energy performance per dollar.

Energy Efficiency and What It Means for Your LA Utility Bill

Windows don’t just cost money up front. They either save you money every month or cost you every month, depending on the glass package. In Los Angeles, with our long cooling season and rising LADWP rates, the efficiency of your windows matters more than it does in milder climates.

The key spec to understand is the low-e coating. Low-e stands for low-emissivity. It’s a thin transparent coating applied to the glass that reflects heat back into the room in winter and out in summer. A double-pane window with low-e and argon gas fill will typically cut heat transfer by 40 – 60% compared to an old single-pane aluminum window. In a 1950s home with original windows, that can translate to real money off your summer cooling bill.

For homes in wildfire-adjacent areas or coastal exposure zones, impact-rated glass from PGT or CGI adds a layer of protection against flying debris and pressure changes. It’s not cheap, adding $300 – $900 per window, but it’s sometimes required by local code for new construction or major remodels in high-risk zones.

We don’t upsell efficiency packages. We’ll show you the numbers for your specific home orientation, window count, and existing conditions, then let you make the call with a written price for each option.

FAQs – New Window Installation Cost

How much does it cost to install one window in Los Angeles?

One standard double-hung vinyl window with double-pane glass typically costs $650 to $950 installed in LA as of 2026. The labor minimum is higher for a single window because the crew still has to mobilize, set up, and handle stucco work. Replacing multiple windows at once lowers the per-window cost. Call (213) 810-3461 for a written price on your exact project.

Is it cheaper to replace all windows at once or one at a time?

Cheaper per window to replace them all at once. A whole-home job of 8 – 14 windows typically runs $6,000 to $18,000 in Los Angeles. Doing the same windows one at a time over several years can cost 20 – 30% more per window, because you’re paying repeated mobilization, setup, and stucco repair costs. Get a written quote for the full scope before deciding. Estimates are free.

How much do impact windows cost in Los Angeles?

Impact-rated windows add $300 to $900 per window over standard double-pane pricing, putting most impact units at $1,100 to $2,300 installed. The premium is driven by the thicker laminated glass and heavy-duty frames, typically from manufacturers like PGT or CGI. We install both lines and can price your home either way.

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

In many cases, yes, especially for whole-home replacements or homes in hillside zones. LA Department of Building and Safety permit fees for window work typically run $150 to $500 per project. Like-for-like swaps that don’t alter the structure sometimes don’t need a permit, but we’ll tell you exactly what your project requires and include the permit cost in your written quote.

How long does new window installation take in Los Angeles?

Most whole-home replacements are completed in 1 to 3 days, depending on the window count and whether stucco repair is involved. A single window takes half a day. We give every customer a committed arrival window before the job starts, so you’re not waiting around all day wondering if anyone will show.

What does the Westlight guarantee cover?

Our guarantee covers the workmanship on every installation. You get a written guarantee at job completion. If the work is not right within the guarantee period, we come back and correct it at no charge. That’s the Kingswell Guarantee: a written price before any work starts, a committed arrival window, a clean job site, and a written guarantee on every completed job.

Why LA Homeowners Choose Westlight Windows Los Angeles

Most people we meet have been burned before. A contractor who no-showed. A price that jumped at the door. A window seal that failed six months after install. We know because they tell us at the first site visit. Our job is to be the company they wish they’d called the first time.

Since 2009, we’ve been doing this work as an independently owned and operated Kingswell location. Owen Satterfield leads the team with one rule: put every price and every promise in writing before a single screw turns. That’s not marketing language. It’s the Kingswell Guarantee, and it’s handed to every customer on every project.

Here’s what that looks like in practice:

• A written price before any work starts. No door-step revisions, no revised invoices, no “by the way, we found more damage” without a conversation and a written update first.
• A committed arrival window. We show up when we said we would. If something changes, we call and tell you before the window passes.
• A clean job site. Old windows hauled away, construction debris gone, floors swept. We leave the place cleaner than we found it.
• A written guarantee on every job. The 365-Day Done Right Promise: if the work is not right within the guarantee period, we come back and fix it at no charge. No negotiation required.
• Eight manufacturer lines. PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. The right product for the job, not the job forced to fit one brand.
• A live person on the phone. 24 hours a day, 7 days a week. Not a voicemail box, not a chatbot. A real human who can schedule, answer questions, or dispatch help.

The west light is the late-afternoon sun that pours through a good window. Bright, warm, and worth doing right. That’s the standard we’ve been installing to since our first job in 2009, and it’s the standard we’ll bring to your home.

Get Your Written Estimate

The best way to know what your window installation will cost in Los Angeles is to let us measure, assess, and write the price down. No vague ranges, no door-step surprises. Just a line-by-line price in writing before any work begins.

Call (213) 810-3461 for a free estimate. A live person answers, 24/7. We’ll get a site visit on the calendar, walk through your home with you, and hand you a written price you can actually plan around.

Westlight Windows Los Angeles is an independently owned and operated Kingswell location, serving the greater Los Angeles area since 2009. We install windows and doors from eight manufacturer lines, including PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux.

Written by Owen Satterfield, Owner at Westlight Windows Los Angeles, serving Los Angeles since 2009. Pricing reflects the Los Angeles market as of 2026. Westlight Windows Los Angeles offers free estimates. Call (213) 810-3461 for an exact quote for your home.