Whole-House Insulation Project Estimator
This rolls every part of the job into one number — attic, walls, floors, air sealing and removal — so you can compare it against a contractor's bid.
Your project
Your results
- Attic
- $2,520
- Walls
- $3,640
- Floors / crawlspace
- $1,380
- Air sealing
- $420
- Removal & disposal
- Not included
- Project total
- $7,960
- Blended cost per sq ft
- $2.49
Estimates use typical US material and labor pricing. Confirm quantities against the coverage chart on the bag before you buy.
Gear for this job
Spray Foam Sealant Gaps And Cracks
Loctite Tite Foam Gaps & Cracks Spray Foam Sealant, 12 fl oz Can, 1 Pack - Polyurethane Expanding Insulation
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Red Devil 0913 Spray Foam & Fill Small Gaps & Cracks Expanding Insulation, Polyurethane Sealant, 12 oz, Off-White, Pack of 1
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Great Stuff Gaps and Cracks Insulating Foam Sealant,12 Ounce - Case of 12
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Blown In Cellulose Insulation
Owens Corning R-19 Unfaced Fiberglass Insulation 77.5 Sq.ft (15 in x 93 in) 1 Batt
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Attic Measuring Rulers (Case of 400), 20 Inch, Card Stock, Attic Insulation R-Value Ruler for Insulators Ceiling Insulation
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DGSL Double Reflective Bubble Foil Insulation Foam, 23.6 in X 10 FT Aluminum Foil Thermal Insulation Radiant Barrier for Window, Garage Door, RV, Roof
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Weatherstripping Door Seal
Holikme Weather Stripping Door Seal, Shower Door Seal Strip,1.8" W-33Feet | Flexible Door Seal, Seals Gaps up to 1.2", Helps Reduce Air Leaks & Dust, For Doors & Windows
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Ninsula 33Ft Door Weather Stripping, (1/2in x 1/4in), Strong Adhesive, Sound Proof, Door Insulation, Weatherproof Foam Tape for Doors, Weatherstripping for Doors Frames, Windows
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Ravinte Weather Stripping Door Seal, Q-Shaped Kerf Foam Strip, 26 FT, Black | Push-In Door Weather Stripping, No Adhesive, Fits 0.35 to 0.59 Inch Gaps, Door Frame and Jamb Seal, Blocks Drafts and Noise
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How this calculator works
- Each surface = area × installed (or material-only) rate
- Air sealing and removal are added as line items
- Project total = sum of every line
Frequently asked questions
How much does it cost to insulate a whole house?
A typical 2,000 sq ft home runs $4,000 to $10,000 installed depending on how much of the envelope is touched and which materials are used. DIY on the attic alone is often under $1,500.
Should I air seal before insulating?
Always. Sealing the top plates, penetrations and attic hatch first is cheap and makes the insulation you add far more effective.
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Attic
$2,520