Connecticut Smoke and Carbon Monoxide Detector Laws for Renters

As a renter in Connecticut, it’s important for your safety and peace of mind to understand your rights regarding smoke detectors and carbon monoxide detectors. Connecticut law requires that most rental homes have working detectors, and both landlords and tenants share responsibilities in ensuring these essential devices are properly installed and maintained. This article covers what the law requires, who is responsible for maintenance, and the steps you can take if your rental does not meet state health and safety standards.

What Connecticut Law Requires for Smoke and Carbon Monoxide Detectors

Connecticut’s housing safety laws require that all residential rental units have functional smoke detectors and, in many cases, carbon monoxide (CO) detectors. These requirements are designed to protect renters and their families from the dangers of fire and CO poisoning, which can be fatal.

Smoke Detector Requirements

  • All residential dwellings, including apartments and single-family rentals, must have smoke detectors.[1]
  • Smoke detectors must be installed inside each sleeping area, outside each separate sleeping area, and on every additional story (including basements but excluding crawlspaces and uninhabitable attics).
  • The law applies whether the unit is a house, condo, or apartment.

Carbon Monoxide Detector Requirements

  • Carbon monoxide detectors are required in any residential unit that uses fossil fuels (such as natural gas, oil, propane, or wood) or has an attached garage.[2]
  • CO detectors must be placed outside of each sleeping area in the immediate vicinity of bedrooms.

Some newer buildings may need hard-wired detectors; others may allow battery-operated models. The rules also apply when a unit is sold or when a new tenant is moving in.

Who Is Responsible: Landlord or Tenant?

Under Connecticut General Statutes Chapter 832: Landlord and Tenant, landlords must install the required detectors and ensure they are working at the start of each tenancy.[3]

  • Landlords must provide and install working detectors and replace batteries or units as needed between tenancies.
  • Tenants are expected to keep the detectors in place and, in many cases, replace the batteries during their tenancy unless the device is hard-wired or sealed.
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If you think a detector is faulty or missing, notify your landlord in writing as soon as possible. Prompt communication will help protect your legal rights and personal safety.

Connecticut law makes your landlord responsible for installing working smoke and carbon monoxide detectors, but as a renter, you should test these devices regularly and report any problems right away.

What to Do If Your Rental Is Missing Required Detectors

If your landlord has not provided working smoke or carbon monoxide detectors, there are clear steps you can follow to address the situation while maintaining your tenant rights.

Step-By-Step Action for Renters

  • Contact your landlord or property manager in writing to state clearly what’s missing or not functioning.
  • Give your landlord a specific timeframe (reasonable, often 10-14 days) to fix the issue.
  • If your landlord does not respond, you may file a complaint with your city or town’s building or housing code enforcement officer.
  • In emergency situations (for example, a life-threatening absence of detectors), you can contact local authorities or the fire marshal.
Always keep copies of your communication and any responses for your records.

Relevant Official Forms

  • Complaint Form – Housing Code Violation (varies by municipality):
    • Used to report health and safety issues such as missing smoke or CO detectors to your city or town's housing code office.
    • For example, if your landlord does not respond to your written request, you can file this form with your local code enforcement office. Check your city or town's website for their specific form and filing instructions. For major cities, see Hartford Housing Code Enforcement.
  • State of Connecticut Judicial Branch – Housing Session Forms:

Legal Oversight and Support

All tenant-landlord issues—including enforcement of detector laws—are ultimately covered by Chapter 832, Title 47a: Landlord and Tenant of the Connecticut General Statutes.

Frequently Asked Questions (FAQ)

  1. What should I do if my landlord refuses to install a smoke or carbon monoxide detector?
    If your landlord does not respond after you notify them in writing, you can file a complaint with your local housing code enforcement office. If the issue is still unresolved, you may seek action through the Connecticut Superior Court Housing Session.
  2. Can I remove or disable a detector if it beeps frequently?
    No. It’s illegal to disable required detectors. Instead, report any issues—such as beeping or malfunctioning alarms—to your landlord for repair or replacement.
  3. Who replaces batteries in smoke and carbon monoxide detectors?
    Usually, tenants replace batteries during their tenancy unless the unit is hard-wired. Your lease may specify battery responsibilities.
  4. Where can I find the official form to report a health or safety code violation?
    The form varies by municipality, but you can check your town or city's government website or view examples for major cities like Hartford Housing Code Enforcement. For legal escalation, use the Connecticut Judicial Branch’s Housing Code Complaint Form.
  5. What Connecticut law covers smoke and carbon monoxide detector requirements?
    These rules are found in Connecticut General Statutes Chapter 832: Landlord and Tenant, along with building and fire codes.

Conclusion: Key Takeaways for Connecticut Renters

  • Landlords must install and maintain working smoke and, when required, carbon monoxide detectors before and during each tenancy.
  • Tenants are responsible for reporting issues and typically for battery replacement unless otherwise specified.
  • If detectors are missing or don’t work, take quick written action with your landlord and know how to escalate using official forms and legal resources.

Need Help? Resources for Renters


  1. Connecticut General Statutes Section 29-292: Smoke Detectors in Residential Buildings
  2. Connecticut General Statutes Section 29-292a: Carbon Monoxide Detection and Warning Equipment
  3. Connecticut General Statutes Chapter 832: Landlord and Tenant
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights USA

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for renters everywhere.