Backup Generator Installation in Boston, MA
Hazards, utility rules, permits and installers
A standby generator runs as long as it has fuel. See what to check in Boston, from utility transfer-switch rules to permits and fuel, then get quotes.
Boston backup generator at a glance
Utility rules and programs for Boston
Eversource serves homes in Boston.
| Utility | Type | Generator rules |
|---|---|---|
| NSTAR Electric Company | investor-owned | A generator transfer switch or battery hookup is electrical work that needs a licensed electrician and an electrical permit from your local wiring inspector under the Massachusetts Electrical Code (527 CMR 12.00); ask your town for local rules. |
Program details are from each utility’s own pages (read October 2026). See the Massachusetts incentives table for statewide credits and a status for every program.
What to plan for in Boston
- Lightning (very high): Lightning causes short outages and damages electronics. Surge protection and a battery that switches over automatically protect the things you care about.
- Heat waves (relatively high): Heat waves strain the grid just when air conditioning matters most. Decide what must stay cool, such as one room, medicine and the fridge, and size backup to that rather than the whole house.
- River and heavy-rain flooding (relatively high): Heavy rain can flood basements and take out power. Put sump pumps on backup power and keep equipment above the flood line.
Permits and approvals in Boston
- City of Boston Inspectional Services Department: permit information · 617-635-5300
- Solar needs both a building permit and an electrical permit, and only a contractor with a valid Massachusetts trade license can pull the electrical permit. Smaller systems on 1-2 family homes may use the Short Form, larger ones the Long Form, filed through the ISD online portal.
- Check any contractor on the Massachusetts license lookup (Division of Occupational Licensure) before you sign.
Fees and steps change; confirm with the office before you start. We have not verified timelines for Boston.
Costs and savings
We do not have verified installed prices for Boston alone. The Massachusetts figures above show what to expect; real quotes depend on your home, equipment and installer. Try the generator sizing calculator, and get at least two written quotes.
Choosing an installer
- License: check the contractor on the Massachusetts license lookup (Division of Occupational Licensure) and that the license covers this work.
- Quote: ask for an itemized written quote that names the equipment, warranties and who pulls the permit and handles the utility approval.
- Compare: get two or three quotes and compare them line by line, not only the total.
Get backup generator quotes in Boston
Tell us about your project in Boston. We reply ourselves and match you with a licensed installer who serves your area. It is free, with no obligation, and nothing is shared with an installer unless you choose one.
More for Boston
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Backup Generator Installation in Boston FAQs
What size generator do I need?
It depends on whether you run central air conditioning or only essentials. Use the generator sizing calculator, then have a licensed electrician confirm.
Natural gas or propane?
Natural gas needs a gas line at the home; propane needs a tank, which may need its own permit. Ask your installer and the permit office.
Do I need a permit for a standby generator in Boston?
Usually yes, and the utility may need to approve solar and batteries. City of Boston Inspectional Services Department handles permits in Boston; see the permit information above.
How do I find a licensed installer in Boston?
Use the quote button on this page. We reply ourselves and match you with a licensed installer who serves your area; you can check any contractor on the Massachusetts license lookup (Division of Occupational Licensure).
Sources: sunshine and climate NASA POWER; hazards FEMA National Risk Index; utility numbers EIA-861 (2024); prices EnergySage (October 2026) and Generac (U.S.); credits IRS and the Massachusetts Department of Revenue; permit information from the city or town’s own page; utility programs from each utility’s own pages (October 2026). General information, not financial, tax, legal or electrical advice. See our editorial policy.