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Caulking & Weatherstripping Cost Calculator
Can I DIY? · DIY-FriendlySee how much caulk and weatherstripping you need to seal drafts, plus estimated annual energy savings.
Educational calculators — always consult a licensed professional before making financial decisions.
Check around exterior window frames for cracked or missing caulk.
Include any door leading outside — main entry, garage-to-house, patio, etc.
Baseboards, siding penetrations, foundation cracks, attic hatch, rim joist areas.
Durable options last longer but cost more upfront.
Cheapest option, replace every 1–2 years.
DIY materials cost
$36 – $54
Vs. a pro handyman visit: $186 – $454
Cost Breakdown
Where Your Money Goes
Estimates reflect national averages for educational purposes only. Energy savings vary significantly by climate, home size, and current draft severity.
Your Saved Scenarios
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What you'll need
- ·Number of windows needing caulk
- ·Number of exterior doors needing weatherstripping
- ·Any other drafty gaps you've found (linear feet)
What you'll get
- ✓Caulk tubes needed — Based on total linear footage to seal
- ✓DIY materials cost — Caulk plus door weatherstripping
- ✓Estimated annual energy savings — From reduced drafts
Draft sealing cost overview
Considering bigger insulation upgrades too? Try our Attic Insulation Cost Calculator for a bigger-picture energy efficiency estimate.
How it works
Count windows and doors
Windows needing caulk, exterior doors needing weatherstripping.
Add other gaps
Baseboards, siding penetrations, attic hatch — any linear footage you've found.
Pick a quality tier
Economy or durable materials.
Draft Sealing Cost Reference
| Item | Typical Cost |
|---|---|
| Caulk tube (covers ~30 linear ft) | $4 – $10 |
| Door weatherstripping + sweep | $10 – $35 per door |
| Estimated annual energy savings | $80 – $200 |
One of the highest return-on-investment home projects — most whole-home jobs cost under $100 in materials.
About this calculator
How much caulk do I need to seal my windows?+
A standard window needs roughly 10 linear feet of caulk around its exterior perimeter. A single 10 oz caulk tube covers about 30 linear feet, so a typical 8-window home needs 3-4 tubes for windows alone, plus more for other gaps.
Is caulking and weatherstripping worth it?+
Yes — it's one of the highest return-on-investment home projects available. Materials typically cost $30-100 for a whole home, and the U.S. Department of Energy estimates draft sealing can save 10-20% on heating and cooling costs, often $80-200/year depending on climate and home size.
Do I need a permit for caulking or weatherstripping?+
No — this is purely cosmetic/maintenance work with zero permit or licensing requirement anywhere in the US. It's one of the lowest-risk, most beginner-friendly home improvement projects there is.
Want to try different numbers?
Back to the calculator ↑Caulking & Weatherstripping Cost Calculator is built and maintained by the RealCostIQ editorial team. Cost ranges and rates are checked against published industry data and contractor quotes, and revised when the underlying figures move. Read our data methodology or more about who builds this. Every calculation runs in your browser — no account, and none of your inputs are stored.
Cost ranges and rates here are checked against contractor quotes and published industry data. If a number still looks off, email Support@RealCostIQ.com and we'll review and fix it.