What Is the Average Cost to Get Your Attic Insulated?
Getting your attic insulated helps save energy and keeps your home comfortable. Many people ask how much attic insulation costs. The answer changes based on the size of your attic, the type of insulation you choose, and how easy it is for the installer to do the work.
Why Insulate Your Attic?
We’ll answer the question “What is the average cost to get your attic insulated?” in a moment. But before we talk about cost, it is good to know why attic insulation matters. Insulation slows heat flow. In summer it keeps hot air out. In winter it keeps warm air in. This helps lower your electric bills and keeps your home more stable in temperature. A well insulated attic also helps reduce stress on your heating and cooling system. Like we always say, your HVAC system will love us, and your budget will love you!
Typical Cost Range
The average cost to insulate an attic usually falls between $1,500 and $3,500 for many homes. Some jobs cost less while bigger or harder jobs cost more. Most homeowners pay around $2,000 to $2,500. This price includes both materials and labor.
The exact cost depends on a few key things:
Size of Your Attic
Bigger attics need more insulation. A small attic of 500 square feet will cost less than a large attic of 1,500 square feet. Be sure to insulate above your garage as well, so that you don’t lose energy in that area, or that hot attic bleeds over into the rest of your attic space.
Type of Insulation
There are different insulation types. Common kinds are fiberglass batts, blown-in fiberglass, and blown-in cellulose. Blown-in insulation costs more than batts, but it fills around pipes and wires better.
Existing Insulation
If your attic has old insulation that needs removal, the job will cost more. Removing old insulation can add $0.50 to $1.00 per square foot. One of the side benefits of having the old insulation removed, though, is that you can add our Attic Seal service, which takes your attic insulation to the next level by sealing around all cracks and openings in your attic. These happen around light fixtures, tight areas that are hard to reach, and any other opening in your ceiling like exhaust fans and air ducts.
Accessibility
If your attic is easy to reach and open, installation will cost less. If it is tight, steep, or hard to enter, the installer may charge more.
Cost by Insulation Type
Here are rough price ranges for common insulation types:
Fiberglass Batts
This type comes in rolls and lays between joists. It usually costs $1,000 to $2,000 for a typical attic.
Blown-In Fiberglass
This type uses loose fibers that a machine blows into the attic. The cost is often $1,500 to $3,000. You can learn more on our Blow In Insulation page.
Blown-In Cellulose
This is recycled paper treated to resist fire. It often costs $2,000 to $3,500.
Prices change based on local labor costs and material prices where you live.
Extra Costs to Know
Some jobs have extra charges you should plan for:
- Old Insulation Removal: If your attic has old insulation that must come out first, expect extra cost.
- Air Sealing: Sealing air leaks boosts insulation performance. This can add $300 to $700 but helps save more on energy bills.
- Ventilation Work: Adding or fixing vents or fans might cost more. Proper attic ventilation helps insulation work better.
Savings and Payback
Adding attic insulation often saves money over time. Many homes see lower heating and cooling bills after the attic is insulated. The exact savings depend on where you live, your energy prices, and your Type of HVAC system. Some people start saving money right away.
Attic insulation costs vary, but most homeowners pay around $1,500 to $3,500. The final price depends on attic size, insulation type, existing conditions, and access. Spending money on attic insulation can make your home more comfortable and help lower energy bills.