WINDOWS
Storm Window Installation Cost: In 2026
Estimate storm window installation cost — with the free window calculator.
Storm windows add a layer of glass over your existing windows — cutting drafts and noise without replacing the originals. Here's the real 2026 cost.
THE SHORT ANSWER
The short answer
Storm windows run $150–$450 each installed in 2026 (average $275). Materials run $60–$250 per window; labor $30–$200. Interior storm panels are cheaper; exterior triple-track units run more. A 10-window house runs $1,500–$4,500.
What it costs
Storm windows run $150–$450 each installed. Materials run $60–$250; labor $30–$200 per window. Interior panels run $50–$150. Exterior triple-track units run $100–$400. A 10-window house runs $1,500–$4,500 installed.
- Per window installed: $150–$450
- Materials: $60–$250
- Labor: $30–$200
- 10-window house: $1,500–$4,500
Storm windows vs replacement
Storm windows cost 1/3 of replacement windows ($500–$1,200 each) and install in minutes over your existing glass. They add a thermal layer, cut noise and protect the original window. Replacement windows look better but cost 3×. Storms are the budget path to efficiency.
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