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Window Replacement
Cost Calculator

Get a ballpark estimate in 30 seconds. Select your window type, frame material, and number of windows — we'll show you a realistic cost range based on current market data.

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Heads up: This is a ballpark range based on typical SoCal market pricing. Actual costs depend on your specific home, accessibility, and the contractor you choose. Final quotes can land 15–30% outside this range.

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What Affects Window Replacement Cost?

Window replacement costs vary widely based on several factors. Understanding these will help you interpret your estimate and have informed conversations with contractors.

Window type is the single biggest driver. Bay windows are custom, structural projects that cost 3–5× more than a standard single-hung. Casement windows require more precise installation than double-hung. Here's a quick breakdown:

Window Type Per Unit (Material) Installed Range
Single-Hung$150–$400$300–$700
Double-Hung$200–$500$350–$800
Casement$300–$700$500–$1,100
Sliding$250–$600$400–$900
Bay / Bow$1,000–$3,500$1,500–$5,000

Frame material is the second-largest cost variable. Vinyl is the most popular for a reason — it's affordable, low-maintenance, and energy-efficient. Wood offers superior aesthetics but requires ongoing upkeep. Fiberglass is the most durable but commands a premium.

Home age adds a meaningful labor multiplier. Homes built before 1980 often have non-standard opening sizes, lead paint concerns, and original framing that may need repair before installation. Full-frame replacement (removing the entire window frame) adds 25–40% to labor vs. an insert replacement.

Number of stories matters because second and third-floor windows require scaffolding or extended ladders, which adds to labor time and insurance requirements for the contractor.

How to Reduce Window Replacement Costs

Frequently Asked Questions

Window replacement typically costs $300–$1,200 per window for the unit itself, plus $150–$500 per window for installation. Total project costs vary by window type, frame material, number of windows, and home age. Vinyl windows are most affordable at $300–$700 installed; wood windows run $800–$2,000+.
Single-hung vinyl windows are typically the cheapest at $250–$550 installed. Double-hung are close behind at $300–$700. Casement windows cost more ($500–$1,100) due to installation complexity. Bay and bow windows are the most expensive at $1,500–$5,000 each.
Yes, significantly. Older homes (pre-1980) frequently require full-frame replacement instead of insert replacement, adding 25–40% to labor. Non-standard opening sizes in older homes can also increase material costs or require custom orders.
The calculator provides ballpark ranges based on current SoCal market pricing for labor and materials. Expect actual quotes to land within 20–35% of this range. Variables we can't capture without a home visit — framing condition, lead paint, exact opening sizes, permit requirements — affect final pricing significantly.
A professional crew replaces 8–10 windows in a single day. Larger projects or full-frame replacements may take 2–3 days. Bay and bow windows typically take a full day each due to structural complexity.