Electricians contractors in Massachusetts

In Massachusetts, electrical work requires a licensed electrician (M.G.L. c. 143, § 3L) and an electrical permit from the town wiring inspector, including in your own home: the building code's homeowner exemption covers the building permit, not wiring. The state uses its own electrical code (527 CMR 12, based on the national code with amendments), and demand has shifted hard toward electrification. Heat pumps, EV chargers, induction ranges and heat pump water heaters all raise the same question about whether a 100-amp service can carry the load, and the answer often drives the budget more than the appliance does.

A 100-to-200-amp service and panel upgrade runs about $2,500 to $5,500 statewide, more where the utility has to replace the service drop or in a triple-decker with a shared meter bank. A Level 2 EV charger circuit is $800 to $2,500; a smart load-management device that avoids the upgrade entirely is often the cheaper path. Knob-and-tube or aluminum-branch rewiring is priced by access and typically lands $7,000 to $20,000 per unit in older homes, and a whole-home standby generator with transfer switch runs $8,500 to $16,000 installed. Utility-side costs vary by company and are billed separately by Eversource, National Grid or Unitil.

Two state rules surface on nearly every sale. First, Massachusetts requires hardwired, interconnected smoke and carbon monoxide alarms at the time of sale in most homes, with the specific rule depending on the home's age and whether it has been renovated; the fire department inspects and issues the certificate. Second, insurers increasingly refuse or surcharge homes with active knob-and-tube wiring, which makes a rewire a condition of a mortgage rather than an optional upgrade. Both are covered in the guides linked below.

Rebates are thinner than for heating. Mass Save does not rebate a panel upgrade on its own; the incentive goes to the heat pump or the heat pump water heater that needed it. Some utilities offer EV charger wiring rebates, and the state's MOR-EV program is for the vehicle, not the wiring. The federal 25C credit that covered panel upgrades ended December 31, 2025.