Solar Installation Cost in Boston, MA
Solar Installation in Boston, MA costs a median of $22,000, with the middle 50% of projects between $12,540 and $35,530. Based on 11,112 permits filed between January 2018 and June 2026 with City of Boston Inspectional Services Department. Last recalculated August 21, 2026.
Sourced from 11,112 building permits on file with the City of Boston. Source: Boston Building Permits.
Types of Solar Installation Work in Boston
| Type | Typical cost | Range | Projects |
|---|---|---|---|
| Roof Mount | $21,975 | $100 - $80,000 | 10,453 |
What Most Homeowners Paid
Each bar counts the projects filed in that price range.
| Price range | Projects |
|---|---|
| $4,288 to $9,896 | 1,372 |
| $9,896 to $15,504 | 1,735 |
| $15,504 to $21,112 | 1,628 |
| $21,112 to $26,720 | 1,421 |
| $26,720 to $32,328 | 1,108 |
| $32,328 to $37,936 | 850 |
| $37,936 to $43,544 | 710 |
| $43,544 to $49,152 | 526 |
| $49,152 to $54,760 | 373 |
| $54,760 to $60,368 | 278 |
You could save $7,600 on a typical solar PV system in this market by claiming all available federal and state incentives on your tax return.
- Earn up to $6,240 from Massachusetts SMART 3.0 over 20 yearsAbout $312 per year for 20 yearsEstimate based on 8 kW residential system at Massachusetts state-average production (10,400 kWh/year). Base compensation rate of $0.03/kWh under SMART 3.0; rate locks at enrollment for 20 years. Battery storage and low-income adders are not included.
- Federal Solar Investment Tax Credit (ITC)30%
- Massachusetts Residential Energy Credit15% (max $1,000)
- Federal credit applies to systems placed in service through .
Net cost is the median permit value minus the credits above, with each percent credit capped at its statutory maximum. Credits are nonrefundable and require sufficient tax liability to claim. Utility-level rebates are not included. Production-based program payments are shown in nominal dollars over the program duration; net present value is lower. Sources: IRS Form 5695, Massachusetts Residential Energy Credit, Massachusetts SMART 3.0.
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Public record data. HomeQuotr does not alter, estimate, or interpolate permit values.
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Common Questions About Solar Installation Costs in Boston
The median solar installation project in Boston, MA costs $22,000, based on 11,112 building permits. Most projects fall between $12,540 and $35,530.
The middle 50% of solar installation projects in Boston fall between $12,540 and $35,530. Costs vary with project scope, materials, property size, and local labor rates.
This estimate is based on 11,112 building permits filed between January 2018 and June 2026 with Boston Building Permits.
Every price comes from building permits filed with city and county governments. When a contractor pulls a permit, they declare the project value. HomeQuotr aggregates those declared values for Boston. Not surveys, not estimates, not self-reported data.
Compared with nearby cities, solar installation runs Worcester at $22,000.
Yes. HomeQuotr is free for homeowners, with no account required and no contractor calls. We sell data to businesses, not your phone number to contractors.
Solar projects in Boston may qualify for Massachusetts Residential Energy Credit, Massachusetts SMART 3.0, and Federal Solar Investment Tax Credit (ITC).