Insulation · Costs, budgets and timelines · Updated November 2026
Attic Insulation Removal and Replacement Cost
Most attics do not need old insulation removed; new insulation can often go on top. When removal is necessary, HomeAdvisor puts it at about $900 on average, or $1–$2 per square foot of attic.
When removal is necessary
- Insulation is wet, moldy or contaminated by rodents or other pests.
- Smoke, fire or water damage.
- You need to air seal the attic floor thoroughly and old insulation is in the way (air sealing vs. insulation).
- Vermiculite that may contain asbestos (test first; see below).
If the old insulation is dry and clean, adding new insulation on top is usually the cheaper choice.
Costs
| Item | Typical cost |
|---|---|
| Insulation removal | $600–$1,200 (about $900 average); $1–$2 per sq. ft. of attic |
| Asbestos removal (if vermiculite tests positive) | $1,190–$3,255 |
| Hazardous disposal (asbestos, mold, pest waste) | Can reach $25 per sq. ft. |
| New blown-in insulation, 1,000 sq. ft. | $975–$2,200 |
| Attic air sealing | About $250–$750 |
Removal, asbestos and disposal from HomeAdvisor; blown-in from our insulation cost guide.
Ordinary disposal is usually included in the removal price. Blown-in insulation is typically vacuumed out with a large hose; batts are removed by hand.
Vermiculite warning
Vermiculite insulation (gray-brown, pebble-like) may contain asbestos. Do not disturb it, store items on it or try to remove it yourself. Have it tested by an accredited lab, and use a licensed asbestos abatement contractor if it tests positive.
Do it in the right order
- Remove damaged insulation and clean up.
- Fix the cause (roof leak, pests, bath fans venting into the attic).
- Air seal the attic floor.
- Install new insulation.
Sources
- HomeAdvisor: Attic insulation removal cost, accessed November 2026
Cost figures are national ranges from the sources listed above and in our insulation cost guide, not a quote from FixFinch or any contractor.