Smoke Detectors: Cambridge vs Waltham
How do smoke detectors rules compare between Cambridge, MA and Waltham, MA?
Cambridge and Waltham have similar restriction levels.
Cambridge, MA
Middlesex County
Cambridge enforces strict smoke and carbon monoxide detector rules under MGL c.148 s.26F and 527 CMR 1.00. Cambridge Fire Department inspects every home at point of sale and issues a required Certificate of Compliance.
View full Cambridge rules →Waltham, MA
Middlesex County
Waltham enforces Massachusetts smoke and carbon monoxide detector laws under MGL c.148 s.26F. Detectors are required in all homes and must be inspected by the Fire Department before any property sale.
View full Waltham rules →Key Facts Comparison
| Fact | Cambridge | Waltham |
|---|---|---|
| Statute | MGL c.148 s.26F | - |
| Photoelectric alarms | Required within 20 feet of kitchens | - |
| CO alarms | Every level with fuel appliance | - |
| Point of sale inspection | Mandatory | - |
| Inspection contact | 617-349-4900 | - |
| Governing law | - | MGL c.148 s.26F and 26F-1/2 |
| Smoke detectors | - | Required every level, every bedroom |
| CO detectors | - | Every level with sleeping areas |
| Pre-sale inspection | - | Required for 1-2 family homes |
| Detector lifespan | - | Replace after 10 years |
Highlighted rows indicate differences between cities.
Cambridge FAQ
Do I need to replace battery smoke alarms before selling my Cambridge home?
Yes, pre-1975 homes can keep battery alarms but they must be 10-year sealed models meeting current UL 217 standards.
How do I schedule a Cambridge smoke certificate inspection?
Call Cambridge Fire Prevention at 617-349-4900 at least 2 weeks before your closing date.
Waltham FAQ
Do I need a Fire Department inspection before selling my Waltham home?
Yes. MGL c.148 s.26F requires a Smoke and CO Certificate of Compliance before any residential property transfer.
Can I use battery-only detectors in a new home?
No. Homes built or substantially renovated after 1975 require hardwired, interconnected detectors with battery backup.
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