How Much Does Window Replacement Cost in 2026? (Full Price Breakdown)

The short answer

In 2026, homeowners pay $300 to $1,500 per window installed, with a national average of $750 per opening. A typical 10-window replacement runs $4,500 to $12,000 all-in.

The three biggest cost drivers are frame material (vinyl is cheapest, wood is most expensive), window style (double-hung and sliders cost less than casement or bay), and glass package (double-pane low-e is standard; triple-pane adds 15–25%).

Average cost by window type

Double-hung: $300–$850 installed. Casement: $400–$1,100. Sliding: $350–$950. Picture: $350–$1,200. Bay or bow: $1,400–$4,500. Awning: $400–$1,000.

Custom sizes, historic replicas, and impact-rated coastal windows push each category 30–60% higher.

Frame material pricing

Vinyl remains the best overall value at $300–$700 per window with lifetime warranties from most manufacturers.

Fiberglass runs $500–$1,300 and lasts 40–50 years with the lowest expansion of any frame material, the best long-term ROI.

Wood and wood-clad start at $900 and easily exceed $2,000 per window for premium brands like Marvin and Andersen A-Series.

Hidden costs to ask about

Full-frame vs. insert replacement (full-frame adds $150–$300 per opening), lead paint testing on pre-1978 homes, exterior trim capping, interior drywall or plaster repair, and permit fees ($50–$400 depending on jurisdiction).

Always get an itemized written quote and confirm the manufacturer, model line, and NFRC performance numbers before signing.