Cost to Energy Audit and Weatherization in Boston, MA (2026)

If you’re budgeting a energy audit and weatherization in Boston, most projects run $361-$9,627, 20% above the $2,800 national average. What moves that number most is usually one thing: Audit Only vs. Audit Plus Weatherization. On its own it can swing the cost by $300 - $10,000, so that’s the decision to slow down on before you sweat the smaller stuff.

Easiest place to save: Utility rebates often cover 25-75% of audit and basic weatherization costs - call your utility company before spending anything. Many offer free or $50 subsidized audits.

In the Northeast (where Boston sits): Heating-dominated climate means weatherization has the highest ROI of any region. Many northeastern utility programs (National Grid, Eversource, PECO) heavily subsidize audits and weatherization. Massachusetts has some of the most generous programs in the country, often paying 75-100% of audit costs.

$361-$9,627 in Boston

20% above the national average · 1.20x cost multiplier

In Boston, a energy audit and weatherization runs $361 to $9,627 on average - about 20% above what homeowners pay nationwide. The Northeast market's labor costs account for most of the gap, with material pricing and local permitting fees adding to the spread. Use the cost table below to compare budget, mid-range, and premium options side by side.

Cost Breakdown in Boston

Line ItemLowMidHigh
Cost per audit/service$181$3370$842
Materials$58$928$4,640
Labor$308$1,480$7,401
Permits$0$0$348
Total$366+22% vs. national avg$2,408+20% vs. national avg$12,389+20% vs. national avg

Budget

Professional energy audit only, blower door test, thermal imaging, written report

Mid-Range

Audit plus basic weatherization: air sealing, insulation top-off, smart thermostat

Premium

Whole-house weatherization: full air sealing, comprehensive insulation, HVAC tune-up, windows

Material Options

Material prices below are national averages; availability in Boston may shift costs slightly.

MaterialCost/UnitBest For
Professional Energy Audit (Blower Door + Thermal)$150 - $700Every homeowner as the first step before spending on weatherizationIdentifies exactly where your home loses energy, prioritizes repairs by ROI, required for most rebate programs
DIY Energy Audit (Limited)$0 - $50Rental properties where professional audit is not justified, basic awareness onlyFree, identifies obvious issues (drafts, visible insulation gaps)
Air Sealing (Attic and Basement)$300 - $1,500Almost every home - consistently the top audit recommendationHighest ROI of any weatherization measure, 3-5 year payback, improves comfort year-round
Attic Insulation$800 - $3,500Homes with less than R-30 in the attic - nearly all pre-2000 homesMajor heat loss reduction, qualifies for 30% IRA tax credit, often covered by utility rebates
Weatherstripping and Door Sweeps$50 - $400Quick wins, visible drafts under doors and around windowsCheap, DIY-accessible, immediate comfort improvement, no permit needed

Other Projects in Boston

Boston Estimate

Typical Range

$361-$9,627

vs. National Average

20% above national

Cost Multiplier

1.20x

Cost Per audit/service

$181-$842

This 1.20x estimate prices Boston labor from BLS Occupational Employment and Wage Statistics (May 2025) and applies a lighter regional adjustment to materials and permits, which vary less by metro than labor does. Actual bids vary by contractor, project scope, and timing.

See national average costs →