Smoke detectors in Middlesex County follow 527 CMR 1.00 and MGL c.148 s.26F. Homes sold or transferred require a Smoke Certificate inspection by the local fire department before closing.
Massachusetts 527 CMR 1.00 (State Fire Code) and MGL c.148 s.26F impose strict smoke detector requirements across all Middlesex County municipalities. Every dwelling unit must have photoelectric smoke alarms in each bedroom, outside each sleeping area, and on every level including basement. Alarms installed after 2017 must be photoelectric with 10-year sealed batteries or hardwired with battery backup. Carbon monoxide detectors are also required under MGL c.148 s.26F 1/2 within 10 feet of bedroom doors. Before any home sale or transfer, the seller must obtain a Smoke Certificate from the local fire department (Cambridge, Somerville, Newton, Lowell, etc.) confirming compliance; inspection fees run 50 to 100 dollars. Rental units are inspected at change of tenancy in some communities. Replacement is required every 10 years. Failure to comply prevents closing of sale.
Contact your local code enforcement office for specific penalty information.
See how Middlesex County's smoke detectors rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.