Cost to Insulate an Attic with Fiberglass Batts – 2021

| Last Updated: August 23, 2021

National Average Improvement and Repair Cost

Pro

DIY

Hours:

10.1

11

Cost:

$ 1506

$ 880

Would you do this project? According to our survey, 67% of respondents preferred DIY compared to hiring a pro.

Photo credit: hometips.com

The average price to Insulate an Attic with Fiberglass Batts noted above is cost data to compare a contractor’s estimate with doing it yourself.

What’s the cost of attic insulation? An insulation contractor charges $1,506 to insulate an attic with fiberglass batts vs. doing it yourself for $880. 

Energy experts agree that you’ll lower your energy bills if you insulate your attic with at least 12 inches of insulation, which is considered the minimum amount to meet today’s standards.

And it’s easy to do: Just lay down batts of poly-wrapped insulation directly over what’s already up there. It’s not exactly fun to do, but it’s one of the best ways you can button up your house to make it tighter and more energy efficient.

A contractor will charge $1,506 to install fiberglass batts in the cavities and space between floor joists in a 1,200-square-foot attic. That includes the labor and material. You can buy the insulation for $880 and do it yourself and pocket a nice saving. Today’s batt insulation is greatly improved and wrapped making it much easier (read: not itchy) to install. It’s compacted, so it’s not as bulky and cumbersome to transport and get up to the attic.

To do the job, use a measuring tape to determine the length of batts needed, and scissors and a straight edge to cut them to size. Wear a respirator, safety goggles, long pants, a long-sleeved shirt, and a pair of knee pads to save your shins.

Watch a video from the Insulation Institute Installing Attic and Ceiling Insulation.

The average price to insulate an attic with fiberglass batts noted above is cost data to compare a contractor’s estimate with doing it yourself.

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Welcome! We hope you’ll find the job costs of home improvement projects useful when you’re deciding whether to do a job yourself vs. hire a contractor. We’re the authors of 20 home improvement books, most notably Home Improvement for Dummies©, Bathroom Remodeling for Dummies©, Carpentry for Dummies©, Plumbing for Dummies©, and Painting and Wallpapering for Dummies©. Our most recent book Fix It and Flip It is in its second edition. We’ve appeared as home improvement experts on television programs such as CNN, Dateline, the Today Show, HGTV and many others.