How much does window replacement cost?

Window replacement costs $300–$1,200 per window installed in 2026. Standard double-hung double-pane windows average $450–$750 per window installed. A whole-home replacement of 10–15 windows runs $5,000–$15,000 depending on window type and labor rates in your area.

What type of window is most energy efficient?

Triple-pane windows with low-E coating and argon gas fill are the most energy efficient, with U-factors below 0.20. For most US climates, double-pane low-E windows (U-factor 0.25–0.30) offer the best cost-to-performance ratio. Look for ENERGY STAR certification for your climate zone.

Window Replacement Cost 2026: Per Window Price Guide

Q: Is it worth replacing old windows?

Yes in most cases. Replacing single-pane windows with double-pane can reduce heating and cooling costs by 15–25%. The energy savings, combined with improved comfort, reduced drafts, and lower UV damage to furniture, typically justify the investment — especially if your windows are 20+ years old.

Q: How long does window replacement take?

A professional installer typically replaces 2–4 windows per day. A whole-home replacement of 12 windows usually takes 1–2 days. Custom or oversized windows may require special ordering and longer lead times.

Updated May 2026 · Based on US regional contractor pricing data

Quick Answer: $300 – $1,200 per window installed Whole-home replacement (10–15 windows) runs $5,000–$15,000. Custom or specialty windows cost significantly more.

Cost by Window Type (Installed)

Window Type	Low	Mid	High
Single-Hung	$300	$500	$850
Double-Hung	$400	$650	$1,100
Casement	$450	$750	$1,300
Sliding	$350	$600	$1,000
Bay / Bow	$1,200	$2,500	$5,000+
Picture / Fixed	$300	$550	$1,000
Skylight	$800	$1,500	$3,500+
Impact (hurricane)	$600	$1,200	$2,500+

Whole-Home Window Replacement Cost

Number of Windows	Double-Pane Standard	Triple-Pane Premium
6 windows	$2,400–$5,500	$4,000–$8,000
10 windows	$4,000–$9,000	$6,500–$13,000
15 windows	$6,000–$13,500	$10,000–$20,000
20 windows	$8,000–$18,000	$13,000–$27,000

Frame Material Comparison

Frame Material	Cost	Maintenance	Best For
Vinyl	Low	None	Budget-conscious, most climates
Fiberglass	Medium-High	Minimal	Extreme climates, best insulation
Wood	High	Paint/stain periodically	Historic homes, interior aesthetics
Aluminum	Medium	Low	Commercial, modern style, mild climates
Composite	Medium-High	Minimal	Best of wood look + low maintenance

Frequently Asked Questions

Is it worth replacing old windows?

If your windows are single-pane, 20+ years old, or have broken seals (fogging between panes), replacement typically pays off through energy savings, comfort improvement, and added home value. ENERGY STAR certified windows can reduce energy bills by 15–25%.

How long does window replacement take?

An experienced installer replaces 2–4 windows per day. A whole-home project with 12 windows usually completes in 1–2 days.

Can I replace windows myself?

Insert/retrofit replacements (fitting new window into existing frame) are DIY-friendly. Full-frame replacements that involve removing exterior trim and potentially siding are best left to professionals, as improper installation can cause water infiltration and structural damage.

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