Local research · updated July 2026
Double-hung windows in Los Angeles, California
Two vertically sliding sashes; both the top and bottom sash open. For Los Angeles's older housing stock (71% of homes predate 1980), double-hung window replacement is a common project — and in the ENERGY STAR South-Central zone, the number that matters most is a low SHGC (≤ 0.23) to block solar heat.
Short answer
Double-hung windows in Los Angeles typically cost $795–$3,620 installed per opening. The low end is a mid-grade vinyl insert from a regional installer; the top is a premium frame, a full-frame installation, or a full-service national brand.
NREL REMDB + BLS PPI, localized to Los Angeles (BEA Regional Price Parity, 2024). How we estimate →
$795–$3,620
installed range per opening for Double-hung window, from a mid-grade insert up to a premium or full-frame job
Source: NREL REMDB + BLS PPI, localized to Los Angeles
71%
of Los Angeles homes were built before 1980
Source: U.S. Census Bureau, 2019–2023 ACS 5-Year Estimates
SHGC ≤ 0.23
the ENERGY STAR v7.0 number that matters most in the South-Central zone
Source: EPA ENERGY STAR v7.0
Is a Double-hung window right for a Los Angeles home?
Both sashes slide vertically and typically tilt inward for cleaning.
Where it fits:
- Traditional and historic home styles
- Rooms facing walkways, porches, or patios (no outward projection)
- Easy cleaning from inside on upper floors
What to weigh:
- More potential air-leakage paths than hinged styles at equal quality
- Half the opening ventilates at any one time
Double-hung windows and Los Angeles's climate
Los Angeles sits in the ENERGY STAR South-Central zone (IECC zone 3B (warm, dry), Los Angeles County), where the priority is a low SHGC (≤ 0.23) to block solar heat.
Double-hung sashes seal against weatherstripping as they slide, so they have more potential air-leakage paths than hinged styles. In the South-Central zone, prioritize a well-built unit and low-SHGC glass (≤ 0.23) to offset that.
New to these numbers? See our plain-English guide to U-factor and SHGC and the full double-hung guide.
What Double-hung windows cost in Los Angeles
Double-hung window replacement in Los Angeles runs $795–$3,620 installed. The low end is a mid-grade vinyl insert from a regional installer; the top is a premium frame, a full-frame installation, or a full-service national brand. Los Angeles window projects tend to land at or above national planning ranges, driven less by the glass than by everything around it. Labor and permit costs run high, and the region's stucco exteriors force a choice between cheaper retrofit-flange installs and costlier full-frame replacements that involve cutting back and patching stucco. Title 24 compliance means quotes are for dual-pane low-e product as a floor, not an upgrade. Fire-zone tempered glazing, HPOZ-compliant historic profiles, and second-story or hillside access each add cost, while the sheer competitiveness of the LA contractor market pushes the other way — multiple bids routinely spread 30% or more on identical scopes. Homes with dozens of original aluminum sliders often phase the work, starting with the hottest west- and south-facing elevations.
That's the national range shifted to Los Angeles's cost level using the BEA Regional Price Parity for Los Angeles-Long Beach-Anaheim, CA (113.6, U.S. = 100; 2024). How we estimate local costs →
For a breakdown by frame material and install type, see our full cost guide.
Installers serving Los Angeles
A sample of companies with locations in the Los Angeles market. See the full Los Angeles directory for all listings, our map, and featured-partner disclosures.
| Company | Location | Request a quote |
|---|---|---|
 4.8 · 200,000+ reviews | Torrance, CA | Get a quote → |
| 1Champion WindowsChampion | Santa Clarita, CA | Get matched → |
| 2Window World of Orange CountyWindow World | Anaheim, CA | Get matched → |
| 3Window World of Riverside CountyWindow World | Riverside, CA | Get matched → |
Renewal by Andersen of Greater Los Angeles - Laguna Hills
4.8 · 200,000+ reviewsShowrooms in Torrance & Laguna Hills · serving the Los Angeles metro
Full-service manufacturer and installer, transferable warranty, local crews. Why it's our Top Pick
Get a quote →Listings compiled from manufacturer dealer locators and public business records. Premier and Sponsored Partners pay for placement and are labeled as such; star ratings shown are reported by the partner, with the source and date beside them. See our advertising disclosure. Contacting a company shares your details with it (or a vetted local installer) so it can reach you about your project.
Are you a window company? Claim your listing to take quote requests from Los Angeles homeowners directly.
Rebates & incentives in California
The federal window tax credit (25C) ended for projects placed in service after December 31, 2025. If your windows were installed in 2025, you can still claim it on your 2025 return — but for new projects there is no federal window credit. State and utility programs are now the main source of window incentives.
California's IRA rebates run through the California Energy Commission. The HEAR-funded HEEHRA program (delivered via TECH Clean California / The Switch Is On) launched for income-eligible households, but Phase I single-family rebates were fully reserved statewide as of early 2026, with a waitlist and a Phase II in design. HOMES funds are being routed into the Equitable Building Decarbonization Direct Install program and a Pay-for-Performance program that were not yet issuing rebates as of mid-2026. Confirm current availability first. See our Los Angeles guide for the full program list.
Double-hung windows in Los Angeles: FAQ
›What efficiency numbers should a Double-hung window in Los Angeles meet?
Los Angeles sits in the ENERGY STAR South-Central zone (IECC 3B (warm, dry)). Qualifying units need a U-factor of 0.28 or lower and an SHGC of 0.23 or lower. Double-hung sashes seal against weatherstripping as they slide, so they have more potential air-leakage paths than hinged styles. In the South-Central zone, prioritize a well-built unit and low-SHGC glass (≤ 0.23) to offset that.
›How much does Double-hung window replacement cost in Los Angeles?
A useful planning range for Double-hung window replacement in Los Angeles is $795–$3,620 installed. The low end is a mid-grade vinyl insert from a regional installer; the top is a premium frame, a full-frame installation, or a full-service national brand. Los Angeles window projects tend to land at or above national planning ranges, driven less by the glass than by everything around it. Labor and permit costs run high, and the region's stucco exteriors force a choice between cheaper retrofit-flange installs and costlier full-frame replacements that involve cutting back and patching stucco. Title 24 compliance means quotes are for dual-pane low-e product as a floor, not an upgrade. Fire-zone tempered glazing, HPOZ-compliant historic profiles, and second-story or hillside access each add cost, while the sheer competitiveness of the LA contractor market pushes the other way — multiple bids routinely spread 30% or more on identical scopes. Homes with dozens of original aluminum sliders often phase the work, starting with the hottest west- and south-facing elevations.
›Do I need a permit to replace Double-hung windows in Los Angeles?
Replacement generally requires a permit, and new units must meet the current energy code. See our Los Angeles guide for local permitting and rebate details, and always confirm your installer pulls the permit.
Sources
- — U.S. Census Bureau, American Community Survey 5-Year Estimates (B25034, B25035)
- — EPA ENERGY STAR Version 7.0 Residential Windows specification
- — DOE/PNNL IECC climate zone assignments by county
- — NREL residential window cost analysis (planning ranges)