How Much Does It Cost To Install Attic Insulation?

$897

(1,500 sq.ft. blown-in cellulous R-19)

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Attic Insulation Costs

Indoor Cost Guides Insulation Contractors Attic Insulation Costs

Attic insulation will help resist the transfer of heat (and sound) and is necessary to help maintain interior room temperatures during both the heating season and the cooling season. The benefits of insulation are comfort improvement, energy savings, and increased house value.

You will find the cost to install attic insulation will vary with amount, type, the construction status of the building (finished or not), and labor rate.

In the following tables the Labor Cost figure is what the able DIY person should expect to save by performing the corresponding tasks.

Install insulation: finished 1500 sq.ft. attic; provide and install R-19 blow-in cellulouse insulation.

Item	Unit Cost		Quantity	Line Cost
Insulation: blown-in cellulous R-19, 6.25" thick x 1,500 sq.ft.; prepare and clean up; including waste and miscellaneous material.	$0.32	per sq.ft.	1,650	$535
Equipment rental: to blow-in insulation material.	$55	per day	1	$55
Equipment purchase: disposable nozzles required for blow-in operation.	$51	per job	1	$51
Equipment and Material Cost	$0.43	per sq.ft.	1,500	$641
+ Labor Cost	$32	per hour	8	$256
Total Cost	$0.60	per sq.ft.	1,500	$897

Install insulation: finished 1500 sq.ft. attic; provide and install R-13 fiberglass roll insulation.

Item	Unit Cost		Quantity	Line Cost
Insulation: install Kraft faced R-13, 23" wide x 3.5" thick x 1,500 sq.ft.; prepare and clean up; including waste and miscellaneous material.	$0.37	per sq.ft.	1,650	$617
+ Labor Cost	$32	per hour	14	$448
Total Cost	$0.71	per sq.ft.	1,500	$1,065

Install insulation: finished 1500 sq.ft. attic; provide and install R-19 fiberglass roll insulation.

Item	Unit Cost		Quantity	Line Cost
Insulation: install Kraft faced R-19, 23" wide x 6.25" thick x 1,500 sq.ft.; prepare and clean up; including waste and miscellaneous material.	$0.64	per sq.ft.	1,650	$1,053
+ Labor Cost	$32	per hour	14	$448
Total Cost	$1.00	per sq.ft.	1,500	$1,501

Other considerations and costs

R-13 insulation is suitable in moderate climates.
R-19 insulation is suitable to harsher climates, but is not overkill in milder ones.
There may be local subsidy or grant for the upgrade of energy efficiency.
Taxes and permit fees are not included.

DIY considerations

This project may be suitable to an able and prepared DIY person with typical contractor’s tools. The installer may have to work safely atop ladders or scaffolding.

References

Craftsman Estimator Costbook, complete series year 2015.
Latest prices found on Home Depot and other vendor Web sites.
Literature review of DIY Web sites.

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