Insulation cost in Boston: 2023 spending
Boston owners paid a median $1,800 for insulation work: $300 above the U.S. median, tied for fourth-highest of 6 big metros (Census Bureau, 2023).
What Boston owners paid
$1,800
This is historical spending: work done in about 2021 to 2023 on owner-occupied homes, reported in the 2023 survey.
Margin of error ±$830: at 90% confidence the Boston median lies between $970 and $2,630.
How Boston compares
- U.S. median, same work
- $1,500
- Rank, highest first
- Tied at 4 of 6
Boston: $1,800. Between the lowest and highest big-metro medians.
9 of the 15 metros have no published figure for this work, so the rank counts the other 6.
No published figure: Atlanta, Chicago, Detroit, Los Angeles, Miami, Phoenix, Riverside, San Francisco, Seattle.
What it covers
Adding or replacing insulation anywhere in the house: attic, walls or floors.
The Census category is “Insulation” within “Interior Additions and Replacements”: what Boston-area homeowners told the Census Bureau they paid, every size of job together.
Before you compare quotes
If your quote is well above $1,800, ask what is in it that the typical job is not. Which surfaces, removal, access and air-sealing tasks are included?
Then put the quotes in your project budget worksheet to see each one's scope beside its price.