Smoke detector law nyc gives every renter in a covered building the right to a working smoke alarm, and it puts the job of installing one on the landlord. If you have a letter citing Administrative Code 27-2045, the key numbers under smoke detector law nyc are these: the landlord can charge you at most $25 per battery smoke detector ($50 for a combined smoke/CO device), and you have one year to pay it.
What Smoke Detector Law NYC Actually Says
The rules are in NYC Administrative Code 27-2045 and 27-2046. These sections are part of the city’s Housing Maintenance Code. They split the work between the owner and the person living in the apartment. The owner installs the detectors. The tenant keeps them working.
Smoke detector law nyc also covers carbon monoxide (CO) detectors. According to NYC Housing Preservation and Development (HPD), owners must give tenants both kinds of detectors. The detectors must meet the physical rules in the city Building Code. For example, a single combined unit can work as both a smoke alarm and a CO alarm.
Many tenants get a letter or a bill that cites this section. In most cases, the letter is asking you to repay installation costs. Smoke detector law nyc caps those costs. Here are the key rules.
| Provision | Exact rule | Section |
|---|---|---|
| Who installs | The owner provides and installs approved smoke and CO detectors in each apartment | NYC Admin. Code 27-2045 |
| Max charge, battery smoke detector | $25 per detector | NYC Admin. Code 27-2045 |
| Max charge, combined smoke/CO device | $50 per device | NYC Admin. Code 27-2045 |
| Time for tenant to pay | 1 year from the date of installation | NYC Admin. Code 27-2045 |
| Manufacturing defect | Not the tenant’s cost if the detector stops working within 1 year of installation because of a defect | NYC Admin. Code 27-2045 |
| End of useful life | The owner replaces the detector | NYC Admin. Code 27-2045 and 27-2046; HPD guidance |
Who Smoke Detector Law NYC Covers (and Who It Does Not)
Smoke detector law nyc clearly covers Class A multiple dwellings. In plain terms, those are regular apartment buildings where people live long term. The owner must put one or more approved, working smoke detectors in each unit. For example, a rent-stabilized apartment in a 20-unit building is covered.
However, not every home fits neatly into that group. Rules for one- and two-family houses, basement units, and rented rooms can be different. HPD’s official sources do not give one simple answer for every building type. As a result, if you rent in a small house, confirm your coverage with HPD or check the text of 27-2045.
Other rules can add to smoke detector law nyc. Buildings in HUD-assisted housing programs may also need to meet federal inspection standards. Typically, those standards add to what the city requires. They do not take away any of your city rights.
What Your Landlord Must Do Under This Law
First, your landlord must install the detectors. Under smoke detector law nyc, the landlord cannot tell you to go buy your own. HPD also says the owner must replace detectors when they reach the end of their useful life. Detectors do not last forever. For example, many models have an expiration date printed on the back.
Second, the landlord must give you written information. HPD says owners must give it to at least one adult in each apartment. It has to explain how to test and care for the detectors. It must also cover carbon monoxide poisoning and what to do if an alarm goes off. HPD posts sample notices that owners can use.
Smoke detector law nyc also has limits on billing. The landlord can ask for no more than $25 per battery smoke detector. The limit is $50 for a combined smoke/CO device.
What You Can Do When It Is Broken
Start by knowing your own part. The law makes the tenant responsible for keeping detectors in good repair. That usually means replacing batteries. You also have to replace a detector that goes missing or gets stolen or removed during your tenancy. However, there is one exception. If a detector stops working within one year because of a manufacturing defect, it is not your cost.
If your apartment has no detector at all, or it has expired, the landlord has to fix that. Tell the landlord in writing and keep a copy. If nothing happens, call 311 or file online through HPD. HPD can inspect and issue a violation. The violation notice will tell the owner how long they have to fix the problem.
Smoke detector law nyc violations can also come up in Housing Court. Tenants can bring a repair case, called an HP action, to get an order for repairs. If you are facing an eviction case at the same time, contact a local legal-aid office or a tenant attorney right away. Smoke detector law nyc problems will not stop an eviction by themselves. Even so, they may matter in your case.
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Frequently Asked Questions
Can my landlord charge me for a smoke detector?
Yes, but only up to a limit. Smoke detector law nyc caps the charge at $25 per battery smoke detector, or $50 for a combined smoke/CO device. You have one year from installation to pay.
Who replaces the battery in my smoke detector?
In most cases, you do. Under smoke detector law nyc, tenants keep detectors in good repair during their tenancy. However, when a detector reaches the end of its useful life, the owner must replace the whole unit.
What if my apartment has no carbon monoxide detector?
The owner must provide both smoke and CO detectors. Ask in writing first. If it is still not installed, call 311 and ask for an HPD inspection.
Protect your stuff while you sort this out
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Sources & How to Verify
The rules on this page are drawn from official government and legal-aid sources. Tenant law changes, so always confirm the exact rule with your state’s statute or a local legal-aid office.
- HUD: hud.gov — federal renter protections and fair housing
- Legal Services Corporation: lsc.gov — find free legal aid in your state
- Cornell Legal Information Institute: law.cornell.edu/wex — plain-English legal definitions
- Your state statute & court self-help portal: search “[your state] landlord tenant act” and “[your state] court self-help eviction” for the exact law and forms
Content last reviewed September 2026. If you notice outdated information, please contact us.
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Informational only — not legal advice. Tenant Rights Info is an independent educational resource, not a law firm, and this page does not provide legal advice. Landlord-tenant law varies by state and city and changes over time, so always verify the exact rule with your state’s statute, your local court’s self-help portal, or a legal-aid office. For urgent situations like an active eviction, contact a local legal-aid office or a licensed tenant attorney in your state right away.