Blown in insulation is the least expensive option and ideal for older attics.
Cost to seal and insulate an attic.
According to home advisor insulating your attic can cost between 1700 to 2100.
Every project will have its own unique set of challenges making it very difficult to provide a ballpark estimate.
Square footage of your attic.
The cost to insulate an attic starts at 1 68 3 25 per square foot but can vary significantly with site conditions and options.
Get fair costs for your specific project requirements.
Contractor or insulation installer s fee.
A typical 500 square foot project costs 1 171.
Type and material of your insulation.
For that space if all the insulation in there now is coming out and being totally replaced as part of the insulation job so the attic floor will be completely exposed anyway for roughly 3000sf of attic normal air sealing cost would probably be in the 250 400 range depending on whether your attic was used for ducting and wiring runs or not.
It can cost anywhere from 1 700 to 2 100 or between 1 50 and 3 50 per foot to insulate an attic depending on what insulation material you choose.
The main factors that impact the cost are.
See typical tasks and time to insulate an attic along with per unit costs and material requirements.
Spray foam while the most expensive is best for noise reduction and new construction.
The national average cost to insulate an attic is 1 57 per square foot with a range between 0 94 to 2 20.