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

How Much Does Window Replacement Cost in Los Angeles?

Window replacement in Los Angeles typically costs $550 to $1,850 per window installed in 2026, with most mid-range double-hung vinyl replacements landing between $700 and $1,200 per window. A full-home project for a standard 3-bedroom house (10 – 15 windows) usually runs $7,500 to $22,000 total. The spread comes down to frame material, glass package, window size, and whether we’re dealing with a straightforward retrofit or a full frame-out replacement on an older L.A. home.

Those numbers are for quality windows installed by a licensed crew that pulls permits where required. You can find bids below $400 per window around town, but after 16 years in Los Angeles Window Replacement, we can tell you exactly what those bids leave out: cheaper glass coatings, thinner frames, and installers paid by the piece rather than the hour. Owen Satterfield and our team at Westlight Windows Los Angeles will give you a written price before any work starts, so the number we quote is the number you pay.

Key Takeaways:

• Single window replacement: $550 – $1,850 installed
• Most common project (vinyl double-hung, standard size): $700 – $1,200 per window
• Full-home replacement (10 – 15 windows): $7,500 – $22,000
• Premium materials (fiberglass, wood-clad, impact-rated): $1,400 – $3,200+ per window
• Permits in Los Angeles add $150 – $500 depending on scope

If you’re still in the research phase, our Window Replacement in Los Angeles page walks through materials, timing, and what a typical install day looks like. For pricing specifics, keep reading.

Window Replacement Cost Breakdown (2026)

Here’s what we’re seeing across the Los Angeles market right now, broken down by window type and material. These are installed prices, including labor, basic trim work, and haul-away of the old units. They reflect actual projects our team has quoted and completed in neighborhoods from Sherman Oaks to Highland Park to the South Bay.

What pushes a job toward the top of those ranges:

• Frame-out replacement rather than retrofit. When the existing frame is rotted, out of square, or you want a different window style, we pull the entire old unit down to the rough opening. That’s more labor, more trim work, and sometimes stucco or drywall repair on the interior and exterior. Retrofits are faster and cheaper because the old frame stays in place.
• Glass upgrades. Low-e glass (a thin coating that reflects heat back into the room in winter and back out in summer) typically adds $50 – $150 per window depending on the coating. Argon gas fill between panes adds another $25 – $75. Dual-pane is standard on everything we install; triple-pane is an option for noise-heavy corridors like the 405 or the Metro rail lines, adding $200 – $400 per window.
• Second-story access. Upper-floor windows require ladders, scaffolding, or lift equipment. That adds $75 – $200 per window depending on roofline and slope. In hillside neighborhoods like Echo Park, Silver Lake, and Mount Washington, access is trickier, and that shows up in the labor line.
• Custom sizes and shapes. Arches, circles, oversized sliders, and anything outside standard manufacturer dimensions gets quoted as a custom unit. Expect to add 20 – 40% over a comparable standard-size window.
• Older home surprises. Los Angeles has tens of thousands of homes built between 1920 and 1960. In those houses, we regularly find lead paint on original window trim, non-standard framing dimensions, or dry rot hiding behind the stucco. A good contractor builds a contingency into the written estimate; a bad one hits you with a change order after the window is out. We put the full scope in writing before we start.

Our home page explains how Westlight handles the whole process, from first call to final walkthrough, including our written-price guarantee.

What Affects Window Replacement Pricing in Los Angeles

Window pricing varies more in L.A. than almost any market we’ve seen. Here’s why.

• Frame material. Vinyl is the value leader and holds up well in our climate. Aluminum is common in mid-century and modern homes, especially in the hills and coastal zones, but it conducts heat and costs more for a thermally broken frame. Fiberglass is the strongest and most stable, priced 40 – 60% above vinyl. Wood is beautiful and expensive, and it requires real maintenance in L.A.’s dry heat and occasional wet winters.
• Glass performance requirements. California’s Title 24 energy code sets minimum efficiency standards for replacement windows. Los Angeles falls in climate zones 6 and 8 – 10 depending on neighborhood, which means most projects require low-e glass and specific solar heat gain coefficients. Windows that meet Title 24 cost more than bare-bones dual-pane units, but they also cut cooling bills during August and September when L.A. temperatures peak.
• Neighborhood and home style. A 1920s Spanish Revival in Los Feliz needs different windows than a 1970s ranch in the Valley or a 2000s stucco box in Westchester. Older homes often need custom sizing because original windows were built to non-standard dimensions. Modern homes with large expanses of glass require bigger units and sometimes tempered glass where code requires it, both of which add cost.
• Retrofit vs. full replacement. A retrofit install uses the existing frame and typically saves 20 – 30% on labor. It’s the right call when the frame is sound and you’re keeping the same window style. A full replacement costs more but lets you change sizes, styles, or fix underlying water damage and framing problems. In Los Angeles, where many homes have original windows from the 1950s or earlier, retrofits aren’t always possible.
• Permit and inspection costs. The City of Los Angeles Department of Building and Safety requires permits for window replacement when you’re changing the opening size or doing a full frame-out. Permit fees vary by project scope, and some retrofit jobs where the opening isn’t altered may not require one. We handle permitting on every job that needs it, and those fees are line-itemed in your written price.
• Labor market. Los Angeles has high demand for skilled window installers and a labor pool that’s stretched thin. Union-scale and experienced non-union crews both command strong wages here. You’re paying for a crew that knows how to flash a window correctly, square a 60-year-old rough opening, and leave the job site clean. That expertise is worth the premium, and it’s built into every qualified bid you’ll see.

How to Save on Window Replacement

You don’t need to buy the cheapest window to get a fair price. Here’s what actually moves the needle.

• Do a whole-home project at once, even if it’s staged by floor or by side of the house. Contractors price jobs more efficiently when the crew is on site for days rather than dropping in for one window at a time. You’ll also save on per-trip costs and permit fees when the scope is consolidated.
• Choose retrofit over full replacement when the frames are sound. If your existing frames are square, dry, and intact, a retrofit install keeps your price down without sacrificing energy performance. We’ll tell you honestly which approach fits your home. Sometimes the retrofit quote comes back and the frames just aren’t worth saving, but when they are, it’s real money back in your pocket.
• Stick with standard sizes and operating styles. Custom dimensions trigger custom manufacturing charges. If a window opening can be adjusted by an inch or two to hit a standard size without compromising the look, that’s savings. The same goes for style: a double-hung is less expensive than a casement of the same size because the hardware is simpler.
• Prioritize glass upgrades over frame upgrades. If you’re deciding between a vinyl window with high-performance low-e glass and a fiberglass window with basic glass, take the better glass. In Los Angeles, the glass coating does more for your comfort and your utility bill than the frame material does. You’ll feel the difference every afternoon when the west light hits.
• Get your written price before any work starts, and make sure it’s the actual number. This is The Kingswell Way, and it’s how we’ve done business since 2009: 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; Come back if it fails. A written price protects you from the door-step revision game that too many L.A. contractors still play.
• Ask about the guarantee before you sign. The cheapest bid is often missing the thing that costs the most later: a contractor who will come back if the work fails. Every Westlight job includes our 365-Day Done Right Promise in writing. If something isn’t right within the guarantee period, we return and fix it at no charge. No negotiating, no fine print. That’s worth more than $300 off a window.

For an exact written quote on your specific windows, call (213) 810-3461. Estimates are free, and a real person answers the phone 24 hours a day.

FAQs – Window Replacement Cost

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

$550 to $1,850 is the typical installed range for a single window in Los Angeles, with most standard vinyl replacements falling between $700 and $1,200. The price depends on the window’s size, the frame material, and whether it’s a retrofit or full frame-out install. Call (213) 810-3461 for a written, line-itemed quote on your specific window, no door-step revisions.

Is it cheaper to repair or replace a window in Los Angeles?

A repair (replacing a broken sash, fixing a failed seal, or swapping worn hardware) typically costs $100 to $450 per window, which is cheaper than replacement in the short term. But if your windows are 25+ years old, single-pane, or leaking air around the frames, replacement usually pays for itself within 5 – 8 years through lower cooling bills. We’ll tell you honestly if repair makes sense. Call (213) 810-3461 and we’ll assess your windows.

How much does whole-house window replacement cost in Los Angeles?

For a typical 3-bedroom Los Angeles home with 10 – 15 windows, expect to pay $7,500 to $22,000 installed. Smaller homes or condos with fewer openings can come in under that range, while large hilltop homes with custom shapes, second-story windows, and premium frames can exceed $30,000. A free estimate from us at (213) 810-3461 gives you the exact number for your house.

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

Permit costs in Los Angeles typically run $150 to $500 when required. The City of Los Angeles requires permits when you’re changing the size of an opening or doing a full frame-out replacement. Simple retrofit installs that keep the same opening size may not need one. We handle permitting on every job that requires it, and those fees appear clearly in your written estimate.

How much do impact windows cost in Los Angeles?

Impact-rated windows from PGT or CGI run $1,400 to $2,800 per window installed in Los Angeles. They’re built with laminated glass and reinforced frames to resist flying debris and forced entry. While L.A. isn’t in a hurricane zone, many homeowners in canyon and hillside fire zones choose impact glass for ember resistance and security, and some insurance carriers offer premium discounts. Call (213) 810-3461 for a written price on impact windows for your home.

Can you replace windows the same day?

Most standard window replacements are same-day installs once the windows arrive. Custom units take 3 – 6 weeks from order to delivery, but the installation itself usually wraps in one visit, even for several windows. When you call (213) 810-3461, we’ll give you a clear timeline in writing before you commit to anything.

What does low-e glass add to window cost in Los Angeles?

Low-e glass adds $50 to $150 per window in Los Angeles and is now standard on most energy-code-compliant units we install. Low-e stands for low emissivity, a thin metallic coating that reflects heat back into the room in winter and back outside in summer. In L.A.’s climate, it’s the single most effective upgrade for cutting cooling costs, especially on west-facing windows that take the full afternoon sun.

Does Westlight charge for estimates?

No. Every estimate from Westlight Windows Los Angeles is free, and it comes as a written, line-itemed price before any work begins. That’s part of the Kingswell Guarantee, and it’s been our practice since Owen Satterfield founded the company in 2009. Call (213) 810-3461 to schedule yours.

Why Los Angeles Homeowners Choose Westlight Windows Los Angeles

We carry eight manufacturer lines: PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. That means we match the product to your home rather than forcing your home to fit one brand. Whether you need energy-efficient ECO Window Systems for a Valley ranch, impact-rated PGT for a hillside with fire exposure, or a Therma-Tru entry door to match your new windows, we’ll quote the right product for the job.

Every install is done by background-checked, uniformed technicians. You’ll know exactly who’s walking through your door, and they’ll leave the job site cleaner than they found it. It’s a simple promise that matters more than most people expect.

And if something goes wrong within the guarantee period, we come back. The 365-Day Done Right Promise is a written guarantee handed to every customer at job completion. If the work fails, the return visit is free. No phone tag, no arguing, no “that’s not covered.”

West light, as Owen likes to say, is the late-afternoon sun that pours through a good window: bright, warm, and worth doing right.

Ready for a real number? Call (213) 810-3461 for a free written estimate. A live person answers, 24/7.

Pricing reflects the Los Angeles market as of 2026. Westlight Windows Los Angeles offers free estimates – call (213) 810-3461.

Written by Owen Satterfield, Owner at Westlight Windows Los Angeles, serving the greater Los Angeles area since 2009.