Quick Answer
Storm window installation costs $90–$400 per window in 2026, including unit and labor. Basic exterior models run $250–$500, Low-E versions $350–$800+, and interior inserts $300–$900+. A whole-house project typically totals $4,200–$19,850. Note: storm windows are not hurricane windows — see the difference below.
Storm Window Cost by Type
Storm Window Cost Estimator
Estimated project total
$2,500 – $5,000
$250 – $500 per window installed
Full window replacement for 10 windows would cost ~$8,500. Storm windows save you roughly $3,500.
Estimates based on 2026 US pricing data (Angi, DOE, contractor surveys). Actual quotes vary by region, window size, and home condition.
| Type | Installed Cost | Best For |
|---|---|---|
| Basic exterior storm window | $250 – $500 | Budget draft reduction over sound existing windows |
| Low-E exterior storm window | $350 – $800+ | Near-replacement energy performance, keeps original windows |
| Interior storm insert | $300 – $900+ | Historic homes, rentals, preserving exterior appearance |
| Triple-track storm window | $400 – $950+ | Storm protection plus screen ventilation |
| Custom storm window | $500 – $1,200+ | Arched openings, unusual sizes, historic preservation |
Storm Window Cost by Material
| Material | Cost per Window | Notes |
|---|---|---|
| Aluminum | $100 – $300 | Most affordable and durable |
| Vinyl | $150 – $400 | Energy efficient, low maintenance |
| Wood | $200 – $600 | Traditional look, customizable, needs upkeep |
Professional installation adds $60–$150 per window; DIY costs materials only. Second-story or difficult-access work can add $50–$250+ per window.
Storm Windows vs Replacement Windows
This is the decision most homeowners face. If your existing windows are structurally sound, storm windows deliver much of the benefit at a fraction of the price:
| Factor | Storm Windows | Replacement Windows |
|---|---|---|
| Cost per window | $90 – $400 | $450 – $1,800 |
| Energy improvement | Good (excellent with Low-E) | Best |
| Installation time | 30–60 min/window | 1–2 hrs/window |
| DIY friendly | Yes | Not recommended |
| Preserves original windows | Yes | No (removes them) |
| Best when | Windows sound but drafty | Windows rotted, failing, or inoperable |
Still deciding? Read our window replacement vs repair guide and check the long-term math with the window replacement ROI calculator.
Storm Windows vs Hurricane Windows
Don't confuse the two. Storm windows ($90–$400) are lightweight insulation panels for cold climates. Hurricane windows ($500–$1,200+) are permanent impact-glass replacements for coastal storm zones. If you need hurricane protection, see our hurricane impact windows cost guide.