Insulation

Attic, wall, and crawl-space insulation and air-sealing — eligible for the 25C federal tax credit and rebates.

Insulation — line illustration

How Insulation installation works

  1. A contractor inspects the home and may run a quick energy assessment.

  2. You get a written quote by area and R-value target.

  3. Existing gaps are air-sealed first.

  4. Insulation is installed in the attic, walls, or crawl space.

  5. You claim the 25C credit and submit any rebate paperwork.


Benefits of Insulation

  • Attic, wall, crawl-space, and rim-joist insulation
  • Air-sealing to stop drafts and cut energy loss
  • Qualifies for the 25C federal tax credit and IRA rebates
  • Lowers heating and cooling bills year-round
  • Improves comfort and reduces moisture issues

Typical cost

Typically $2,000–$10,000 depending on home size and the areas treated

Costs vary significantly depending on property size, existing systems, and contractor. A surveyor's assessment will give you an accurate figure. Available tax credits and rebates (listed below) can substantially reduce the net cost.


Ideal for

  • Drafty homes with high energy bills
  • Under-insulated attics and crawl spaces
  • Older homes with little or no wall insulation
  • Owners stacking the 25C credit with utility rebates

Grants you may qualify for

View all US tax credits & rebates →

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