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AfterHow Much Does New Window Installation Cost in Los Angeles?
New window installation in Los Angeles typically costs between $5,310 and $17,700 for a full home, with most homeowners paying around $8,000 to $12,000 for standard vinyl windows in an average 3-bedroom house. Per-window pricing runs $350 to $1,200 installed, depending on frame material, glass package, and whether you need structural work on the opening. If you’re considering impact windows for earthquake or wildfire hardening, expect $9,440 to $29,500 for a whole-home project.
Those numbers come from what we see across Los Angeles neighborhoods, from West Adams to Sherman Oaks to Highland Park. The spread exists because a 1920s bungalow with original wood frames costs far more to retrofit than a 1990s tract home with standard openings. We’ll walk through exactly what drives those costs below.
Key Takeaways
- Whole-home window installation in Los Angeles: $5,310 to $17,700 for standard replacement windows
- Per-window cost: $350 to $1,200 installed, materials and labor included
- Impact window installation (whole home): $9,440 to $29,500
- Labor typically represents 30% to 40% of the total project cost in the LA market
- Permit fees in Los Angeles add $200 to $800 depending on scope and whether you’re changing opening sizes
- Most single-home projects take 1 to 3 days once windows are on site
New Window Installation Cost Breakdown (2026)
Here’s what we quote, in writing, for window installation across Los Angeles. These ranges reflect the 2026 market for a standard single-family home. If your home is in a hillside zone, a historic district, or has stucco exterior walls, your pricing will land at the higher end.
| Line Item | Cost Range (Los Angeles, 2026) | Notes |
|---|---|---|
| Vinyl double-hung window (per window, installed) | $350 – $700 | Most common choice in LA; good insulation value for the price |
| Fiberglass window (per window, installed) | $600 – $1,100 | Stronger frames; better for large openings and coastal salt air |
| Aluminum window (per window, installed) | $400 – $850 | Common in mid-century homes; less insulation value |
| Wood-clad window (per window, installed) | $700 – $1,200 | Required in some historic districts like Hancock Park or Angelino Heights |
| Full-home standard installation (10-15 windows) | $5,310 – $17,700 | Includes removal and haul-away of old windows |
| Impact window installation (full home) | $9,440 – $29,500 | Laminated glass; increasingly common in wildfire-adjacent zones |
| Interior and exterior trim repair (per window) | $75 – $250 | Only needed if existing trim is rotten or damaged |
| Stucco patch and paint match (per window) | $100 – $350 | Required when new windows are larger or smaller than old openings |
| LA City permit fees | $200 – $800 | Varies by scope; required when changing opening sizes |
What moves the number up or down? Frame material is the biggest lever. Vinyl keeps you at the bottom of the range; wood-clad and fiberglass push you higher. Window count matters less per-unit than the condition of the existing frames. And Los Angeles has a lot of stucco construction. Every window hole we cut into stucco means patching, texturing, and paint matching, which adds real labor hours. Homes in Woodland Hills or Tarzana with drywall interiors and stucco exteriors run higher on labor than, say, a Sherman Oaks home with wood siding.
What Affects New Window Installation Pricing in Los Angeles
- Frame material. Vinyl is the value play. Aluminum suits mid-century homes but conducts heat, which is why we see more AC demand in those houses during August heat waves. Wood-clad is the premium option, and some LA historic preservation zones, including parts of Hancock Park and Windsor Square, require it.
- Glass package. Low-E coatings are standard now, but dual-pane versus triple-pane changes your price by $150 to $300 per window. Triple-pane makes sense if you’re within a mile of the 405 or 101 and dealing with constant traffic noise.
- Number of windows and opening sizes. A standard 24″ x 36″ double-hung is the cheapest shape. Picture windows, casements, sliders, and anything oversized push the per-unit price higher. Arched or custom shapes found in Spanish Revival homes in Los Feliz or Silver Lake add 30% to 50% per unit.
- Stucco exterior condition. This is a Los Angeles-specific factor. Most homes built between 1920 and 1980 here have stucco exteriors. Every window replacement means cutting back stucco, installing flashing, and re-patching. If the stucco is cracked or water-damaged, those repairs are additional.
- Seismic strapping requirements. Los Angeles building code requires windows in certain applications to be anchored with seismic straps. If your existing windows were installed before the current code cycle, you may need to add strapping at install time. We handle this as a standard part of our written quote, but it does factor into labor.
- Access and floor level. Second-story windows on a hillside home in Mount Washington or Echo Park mean ladder work, safety lines, and more labor per window. Ground-level ranch homes in the Valley are faster and cheaper to service.
One more factor we see a lot: the age of your home. Pre-1978 homes may have lead paint on window frames and sills. Los Angeles County has specific rules around lead-safe work practices for any window removal that disturbs painted surfaces. If your home falls in that category, our crew follows RRP lead-safe protocols, which adds a modest cost per window but keeps your family safe during the work.
How to Save on New Window Installation
You don’t need to cut corners to keep window installation costs reasonable. Here’s what actually works in the Los Angeles market.
- Replace windows in batches, not one at a time. Most of the cost is in mobilization, setup, and stucco repair. A 10-window project costs far less per window than a 2-window project. If you know you’ll replace windows over the next few years, doing it in one phase saves you thousands.
- Choose vinyl unless you have a specific reason not to. Vinyl windows perform well in LA’s climate. Unless you’re in a historic district or need impact-rated glass, vinyl is the smart money move.
- Keep your current opening sizes. Resizing a window opening triggers permits, structural review, and extra stucco or drywall work. Staying within the existing rough opening avoids most of that cost.
- Ask about seasonal availability. Window manufacturers sometimes run spring and fall promotions. We pass those through when they’re available. Call us and ask what’s current.
- Get a written price before you commit. We deliver a written price on every window installation project before any work starts. That means the number you approve is the number you pay, no surprise invoices when the job wraps.
If you’re not sure where to start, call (213) 632-5711 and we’ll give you a free estimate. We’ll tell you what your windows should cost, what’s worth doing now, and what can wait. No obligation, no pressure.
Vinyl vs. Fiberglass vs. Wood-Clad: Which Should You Choose in Los Angeles?
This is the question we hear most often from LA homeowners, and the answer depends on your home’s architecture, your street, and your long-term plans.
Vinyl is the most common choice for good reason. It costs less, it holds up well in Southern California’s sun, and it never needs painting. The downside is that vinyl frames are thicker, which means slightly less glass area per window. For most homes in neighborhoods like Torrance, North Hollywood, or Mar Vista, vinyl is the right call.
Fiberglass costs more but offers a slimmer frame profile and better structural strength. If you’re installing large picture windows or sliding glass doors, fiberglass resists bowing better than vinyl. It’s also the preferred choice for coastal homes in Venice or Playa del Rey where salt air corrodes aluminum over time.
Wood-clad is the premium option, and sometimes the only option. If you own a Craftsman bungalow in Pasadena, a Spanish Revival in Los Feliz, or a Victorian in Angelino Heights, your home’s character depends on wood windows with true divided lites. Wood-clad windows with aluminum or fiberglass exteriors give you the look with far less exterior maintenance.
Our home page has more detail on the full range of remodeling services we offer across Los Angeles, including window work.
What to Expect During Window Installation
Here’s how a typical window installation runs with our crew, from first phone call to final walkthrough.
- Free estimate. You call (213) 632-5711, and we schedule a visit. We measure every window, check frame condition, and look at the stucco or siding around each opening. Then we deliver a written price, with a line-by-line breakdown.
- Scheduling and lead time. Once you approve the written price, we order your windows. Standard sizes typically arrive in 1 to 3 weeks. Custom sizes or specialty glass take 4 to 8 weeks. We’ll tell you the lead time before you commit.
- Installation day. Our crew arrives in a marked vehicle, in uniform, and the technician’s name and photo are sent to you before the visit. They show a photo ID badge at the door. We remove the old windows, prep each opening, install the new units, then flash and seal with attention to LA’s stucco-and-sun reality.
- Stucco repair and trim. We patch, texture, and paint-match every opening we touch. This step matters in Los Angeles, where stucco is the dominant exterior surface. A sloppy patch job is visible from the street, and it fails in rain.
- Final walkthrough. We walk the home with you, open and close every window, check every lock, and confirm the trim and stucco work. You sign off, and we hand you the written guarantee.
Every window installation we complete includes our 365-Day Done Right Promise. If anything isn’t right within a year of completion, we make it right at no cost to you. That includes a free return visit if a window sticks, a seal fails, or trim work needs adjustment.
New Window Installation vs. Replacement: What’s the Difference?
Homeowners use these terms interchangeably, but in the trade they mean different things, and the difference affects your bottom line.
Window replacement is what most LA homes need. We remove the existing sashes but keep the frame if it’s sound, then install new windows into the existing openings. This is the $350 to $1,200 per-window range we quoted earlier.
New window installation means creating a new opening where none existed, or expanding an existing one. This is more involved. It requires cutting through stucco or siding, framing the new opening with structural headers, installing the window, finishing both interior and exterior surfaces, and pulling a permit. New openings typically run $1,500 to $3,500 per window depending on size and wall complexity.
Most of the projects we quote in Los Angeles are replacements. New openings make sense when you’re adding light to a dark room, converting a garage, or building an ADU. Our New Window Installation in Los Angeles service page covers both scenarios in more detail.
How Much Does Window Replacement Cost by Neighborhood?
Window pricing in Los Angeles shifts by neighborhood, mostly because of home age, architecture, and exterior finish. Here’s what we see across the metro.
- San Fernando Valley (Sherman Oaks, Encino, Studio City): $5,310 to $12,000 for a standard home. Many 1950s and 60s ranches have standard openings and wood siding, which keeps labor moderate.
- Westside (Santa Monica, Mar Vista, Culver City): $6,000 to $15,000. Older stucco bungalows and a mix of mid-century construction push labor up.
- Northeast LA (Highland Park, Eagle Rock, Mount Washington): $6,500 to $17,700. Hillside access, older frames, and a lot of architectural variety mean more custom work.
- South LA (Leimert Park, Hyde Park, Inglewood-adjacent): $5,310 to $11,000. Mostly 1920s to 1950s bungalows with standard vinyl replacement potential.
- Historic districts (Hancock Park, Angelino Heights, Pasadena): $10,000 to $17,700+. Wood-clad requirements and preservation review add cost.
These ranges assume standard replacement windows. Impact windows, custom shapes, or new openings will push your project higher regardless of neighborhood.
Why Impact Windows Are Growing in Los Angeles
Five years ago we rarely quoted impact windows outside of hurricane zones. That’s changed. Los Angeles homeowners are increasingly asking about laminated glass and impact-rated frames, and the reason has less to do with wind than with fire and security.
Homes in wildfire-adjacent zones, including parts of the Santa Monica Mountains, Topanga, and the foothills above Pasadena and Altadena, benefit from impact windows because they resist ember penetration and reduce the chance of a window shattering from heat exposure. Impact-rated glass also changes the security equation: it’s dramatically harder to break through than standard annealed glass, which matters to homeowners who live alone or are often home alone.
Impact window installation for a whole home runs $9,440 to $29,500 in Los Angeles. The wide spread exists because frame material, glass thickness, and whether you need full impact-rated frames or just laminated glass packages all move the number. If you’re considering impact windows, call us and we’ll walk you through the options, including where they make the most sense and where they’re overkill.
Permits and Building Code for Window Installation in Los Angeles
Yes, window replacement in Los Angeles requires a permit when you’re changing the size of an opening or doing structural work. Straight replacement of windows in existing openings often qualifies for a simple permit process, but you should still confirm with LADBS before starting work. We handle permitting for every project where it’s required, and the cost is included in our written price.
Current Los Angeles building code also requires that replacement windows meet Title 24 energy standards. That means low-E glass, proper U-factor and solar heat gain ratings for our climate zone. If you’re replacing old single-pane aluminum windows from the 1960s, the energy performance difference is substantial. You’ll see it in your AC bills starting the first summer.
FAQs – New Window Installation Cost
How much does it cost to install one window in Los Angeles?
A single standard vinyl window installation runs $350 to $700 in Los Angeles, including labor and materials. If you’re installing a custom size, a wood-clad window, or adding a new opening, the per-window cost rises to $1,200 to $3,500 depending on scope. Call (213) 632-5711 for an exact quote on your specific window.
Is it cheaper to repair or replace a window in Los Angeles?
Repair is cheaper in the short term, running $150 to $500 for typical issues like broken glass, failed seals, or replacement hardware. But if your windows are 20-plus years old and single-pane, replacement usually pays for itself within 5 to 7 years through lower energy bills, especially during Los Angeles summers. We’ll give you an honest read on whether repair makes sense or if you’re throwing good money after bad. Estimates are free.
How long does window installation take?
For a standard 10 to 15 window replacement in Los Angeles, expect 1 to 3 days of on-site work once the windows arrive. Custom windows add 4 to 8 weeks of lead time before installation. New openings or structural work extend the on-site timeline. We’ll give you a specific day-by-day schedule in your written quote before you commit.
Do I need impact windows in Los Angeles?
Impact windows cost $9,440 to $29,500 for a whole home, roughly 40% to 60% more than standard windows. You should consider them if you live in a wildfire-adjacent zone, you’re in a high-crime area, or you want the added security and noise reduction. For most LA homes in standard urban neighborhoods, quality dual-pane vinyl or fiberglass windows are sufficient. We can visit your home and give you a straight answer on whether impact glass is worth the premium for your specific situation.
How much does window replacement cost per square foot?
Window replacement in Los Angeles runs $30 to $90 per square foot of window area, installed. A standard 24″ x 36″ window is 6 square feet, which works out to the $350 to $700 per-window range we quoted earlier. Larger windows, impact glass, and wood-clad frames all push you toward the upper end.
Why Choose Mason Remodeling for Window Installation in Los Angeles?
We’ve been remodeling homes across Los Angeles since 2004, and window installation is a core part of what we do. If you choose us, here’s what that means in practical terms.
You’ll know exactly who is coming. Every crew member is background-checked and identity-verified under the Threshold Standard, a named process we follow on every job. Before your installation, you receive the technician’s name and photo. When they arrive, they’re in a clean uniform and show a photo ID badge at the door. You never open your door to a stranger without knowing who they are.
You’ll get a written price before work starts. We don’t give verbal estimates that grow on the final bill. Your written price covers the full scope: windows, labor, stucco repair, trim, haul-away, and permits where required. The number you approve is the number you pay.
Your work is guaranteed in writing. Every window installation includes our 365-Day Done Right Promise. If anything isn’t right within 365 days of the completion date, we fix it at no cost. That includes a free return visit if a window seal fails or hardware needs adjustment. Terms are stated plainly in the guarantee we hand you at the final walkthrough.
You can reach us any time. A live person answers our phone 24 hours a day, 7 days a week, including weekends and holidays. No call trees, no voicemail loops. Call (213) 632-5711 and a human picks up.
Mason Remodeling Co Los Angeles is part of the Threshold Group family of home-service companies. Each location is independently owned and operated, but every one holds to Threshold Verified standards on every job. Our founder, Isaac Pruett, has led the company since 2004 with one conviction: a homeowner should never have to wonder who’s walking through the door or what the final bill will say.
If you’re considering new windows in Los Angeles, call (213) 632-5711 for a free estimate. We’ll measure, we’ll quote, and we’ll give you a written price. Then you decide.
Written by Isaac Pruett, Owner at Mason Remodeling Co Los Angeles, serving Los Angeles since 2004.
Pricing reflects the Los Angeles market as of 2026. Mason Remodeling Co Los Angeles offers free estimates – call (213) 632-5711.
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