John A Penney & Co
Electrical in Cambridge, MA · ★ 4.2 Google rating
Google rating as of October 2026. How ratings work here
- Address
- 270 Sidney St, Cambridge, MA 02139
- Phone
- (617) 547-7744
- Website
- https://johnpenney.com ↗
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About John A Penney & Co
John A Penney & Co is a Electrical contractor based in Cambridge, Middlesex County, Massachusetts, at 270 Sidney St, Cambridge, MA 02139. It has a Google rating of 4.2 out of 5. Its website is linked above. A listing here is not a license or insurance check, so verify both directly before hiring.
Service area
Based in Cambridge, John A Penney & Co is within a short drive of Somerville (2 mi), Brookline (3 mi), Watertown (4 mi), Everett (4 mi), Belmont (5 mi) and Medford (5 mi). Most Massachusetts electrical contractors work a 25-mile radius, so homeowners in those towns can reasonably ask for a quote.
Hiring a Electrical contractor in Cambridge
Electrical work in Cambridge requires a permit under 527 CMR 12.00, the Massachusetts NEC amendments, and a licensed Journeyman or Master electrician. Permits are pulled through the Cambridge Inspectional Services Department, and a municipal wiring inspector signs off before energizing. Panel upgrades, EV circuits, meter relocations, and rewires all need permits. Cambridge has historic districts (including Old Cambridge and Avon Hill) where exterior-visible changes such as meter or service-mast relocations can trigger Historical Commission review, so flag that early.
Cambridge sits at the high end of the state on labor and access, similar to Boston. A 100A-to-200A panel upgrade typically runs $3,000–$5,500; meter relocations and mast work push higher. A Level 2 EV-charger circuit generally runs $1,200–$2,500 depending on the run to off-street parking, which is scarce here. Knob-and-tube rewiring is priced by accessibility and often lands $8,000–$20,000 for a full home. A whole-home generator with transfer switch usually runs $9,000–$16,000 installed.
Massachusetts requires a written contract and a Home Improvement Contractor registration for most residential electrical work; ask for the registration number and check it before paying a deposit.
More on permits, costs, rebates and common questions, plus every other electrical contractor serving the town, on the Electricians in Cambridge page.
Other Electricians contractors in Cambridge
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