Why does window replacement cost vary by city?

Local labor rates, permit timelines, and demand differ across Southern California. Each city in our guides applies its own cost multiplier to the regional baseline, so a window replacement in a coastal premium market costs more than the same scope inland.

Is the price worth it — and how do I avoid overpaying?

Get at least three written bids for the identical scope, make finishes allowance-based, and check that permits and overhead-and-profit are shown as their own lines. Keystone matches you with up to 3 vetted contractors and will review a bid you already have.

Window Replacement Cost in Southern California (2026)

Q: How much does a window replacement cost in Southern California in 2026?

A mid-size window replacement typically runs $8k–$18k at the LA County baseline. Small projects start around $4k; large or high-end work can reach $38k or more. Orange County runs slightly above this and San Bernardino County below.

A mid-size window replacement typically runs $8k–$18k at the LA County baseline ($450–$1300 per window installed). Small projects start around $4k; large or high-end work can reach $38k or more.

Pricing varies across Southern California — Orange County runs a bit above the LA baseline and San Bernardino County below. Compare by county and city below.

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Window Replacement Cost by Size

Southern California baseline ranges (LA County = 1.0× baseline). Individual counties and cities vary — see below.

Size	Type	Range	Low	High
Small	6–8 windows	small home / partial	$4k	$9k
Medium	10–14 windows	typical home	$8k	$18k
Large	16–24 windows	whole home	$16k	$38k

Window Replacement Cost by County

Los Angeles County

$8k–$18k

mid-size · 1.00× baseline

See LA County city-by-city

Orange County

$9k–$19k

mid-size · 1.05× baseline

See OC city-by-city

San Bernardino County

$7k–$16k

mid-size · 0.85× baseline

See SB County city-by-city

Window Replacement Cost by City

What Affects Window Replacement Cost?

Frame material (vinyl vs fiberglass vs wood)
Glazing (double vs triple pane)
Window size
Title 24 compliance
Sliding glass door inclusion
Installation complexity

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Window Replacement Cost FAQs

Keep exploring

Compare other project costs, drill into window replacement by area, or read our guides.

Other project cost guides

Window Replacement by area

Renovation guides

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