Window Replacement Cost Guide — Dover, NH

Verified 2025 pricing for window replacement services in Dover. Updated quarterly from local contractor data.

Service Cost Ranges

Service	Low	Average	High	Unit
Double-Pane Window Replacement	$345	$747	$1,610	per window installed
Energy Star Window Package	$460	$920	$2,070	per window installed
Whole-Home Window Replacement	$9,200	$20,700	$51,750	per project

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Older housing stock (pre-1955) increases complexity and materials cost

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✓Ask about seasonal discounts

✓Bundle multiple services

✓Check for manufacturer rebates

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