How much does a spray foam insulation cost in Cambridge, MA?

The average spray foam insulation in Cambridge, MA costs $13,149 in 2026. Costs range from $4,931 for a basic project to $32,874 for a high-end renovation. Cambridge is 64% more expensive than the national average of $8,000.

What is the labor rate for contractors in Cambridge?

The average contractor labor rate in Cambridge, MA is $54.31/hour, compared to the national average of $30/hour. For a spray foam insulation, labor typically accounts for 55% of the total cost, which is approximately $7,232 in Cambridge.

Are materials more expensive in Cambridge?

Cambridge has a material cost index of 144 (national average = 100). Materials cost about 44% more than the national average. For a spray foam insulation, materials account for 45% of the cost, approximately $5,917.

Do I need a permit for a spray foam insulation in Cambridge?

A spray foam insulation usually does not require a permit in most jurisdictions, though rules vary in Cambridge, MA. Always verify with the local building department. The average permit cost in Cambridge (when required) is $3,017.

Is a spray foam insulation a good investment in Cambridge?

A spray foam insulation provides an estimated 60% ROI nationally. In Cambridge, where the median home price is $607,888, this project costs about 2.2% of your home value. This is a small percentage of home value, making it a relatively low-risk improvement.

Spray Foam Insulation in Cambridge, MA — Costs $4,931 to $32,874

What does spray foam insulation cost in Cambridge? Average $13,149, ranging $4,931–$32,874. Labor runs $54.31/hr locally — 64% above the national average. Free breakdown with material + labor split.

Cambridge, MA Market

+64% vs national

Labor Rate

$54.31/hr

Material Index

144

Avg Permit Cost

$3,017

Median Home Price

$607,888

Cambridge is a mid-sized city in Massachusetts with a healthy pool of local contractors. Homeowners generally have several options to compare for a spray foam insulation, which helps keep pricing competitive. At 64% above the national average, Cambridge is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. With a median home price of $607,888, this spray foam insulation represents just 2.2% of typical home value — a relatively small investment that can significantly boost curb appeal or functionality.

Low Estimate

$4,931

National: $3,000

Mid-Range

$13,149

National: $8,000

High End

$32,874

National: $20,000

Per Sq Ft

National: $3

Duration: 1-3 days

DIY: Hard

Permits: Not Required

ROI: 60%

Spray Foam Insulation Cost Calculator for Cambridge

Adjusted for Cambridge's labor rate ($54.31/hr) and material costs (index 144).

Project Size: 200 sq ft

50 sq ft1,000 sq ft

Quality Level

Mid-grade materials, good quality fixtures, standard options.

Estimated Total in Cambridge

$13,149

Based on 200 sq ft at mid quality, adjusted for Cambridge market rates.

Local Cost Breakdown

Labor (55%)$7,232

At Cambridge's average rate of $54.31/hr (81% above national avg)

Materials (45%)$5,917

Material cost index 144 (44% above national baseline of 100)

Spray Foam Insulation vs. Home Value in Cambridge

Metric	Cambridge	National Avg
Spray Foam Insulation (Mid-Range)	$13,149	$8,000
Median Home Price	$607,888	$350,000
Project as % of Home Value	2.2%	2.3%
Estimated ROI	60%	60%
Median Household Income	$98,948	$75,000

What Affects the Price in Cambridge

1Local labor rates ($54.31/hr in Cambridge)
2Material cost index (144 vs national 100)
3Open-cell vs closed-cell
4Square footage
5Application area (attic, crawlspace, walls)
6Vapor barrier needs

Popular Upgrades

Closed-cell for maximum R-value
Attic ceiling application
Rim joist sealing

Other Projects in Cambridge, MA

Whole House Generator Installation

$24,100

HardROI 55%

HVAC System Replacement

$19,058

HardROI 50%

Whole House Plumbing Repiping

$16,807

HardROI 45%

Insulation Upgrade

$9,751

MediumROI 55%

Second Story Addition

$325,033

HardROI 60%

Accessory Dwelling Unit (ADU) Construction

$243,775

HardROI 80%

Room Addition

$146,265

HardROI 55%

Home Addition

$128,532

MediumROI 60%

Spray Foam Insulation in Other Massachusetts Cities

Boston, MA

$13,055

-1%Pop. 675,647

Worcester, MA

$11,410

-13%Pop. 206,518

Springfield, MA

$10,852

-17%Pop. 155,929

Lowell, MA

$11,007

-16%Pop. 115,554

Brockton, MA

$10,799

-18%Pop. 105,643

Quincy, MA

$12,158

-8%Pop. 101,636

New Bedford, MA

$11,381

-13%Pop. 101,079

Lynn, MA

$10,777

-18%Pop. 99,989

Planning a Spray Foam Insulation in Cambridge

A spray foam insulation typically doesn't require a permit in Cambridge, which simplifies planning. However, always confirm with the local building department before starting, especially for structural changes. Expect the project to take 1-3 days to complete.

A spray foam insulation is a complex project best left to licensed professionals. In Cambridge, skilled contractors charge an average of $54.31/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.

With a median household income of $98,948, many Cambridge residents can budget for this project through savings. The mid-range cost of $13,149 represents 13% of the typical household's annual income.

Spray Foam Insulation — National Guide

See the full national cost guide with DIY tips, cost factors, and ROI analysis.

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