Hartford, CT Building Safety: Door Locking Hardware (2026)
Key Facts
- Governing section
- Hartford Municipal Code § 18-51(D)(3)-(5)
- Exterior doors/windows
- Must have working locks
- Unit door locks
- Must function as manufacturer designed
- Rekey duty
- Keys/combo changed at every tenant turnover
- Egress windows
- Must open without keys/tools (§ 18-51(D)(2))
- Penalty
- Up to $100/day, capped $7,500/violation
Summary
Municipal Code § 18-51(D) requires every Hartford rental owner to keep exterior windows and doors secure and in good repair. Subsections (3) through (5) turn that into concrete duties: exterior doors and windows need working locks, interior unit locks must function as the manufacturer designed them, and the owner must rekey or change the combination every time an occupant moves out.
D. Maintain in sound condition and good repair every foundation, floor, wall, ceiling and roof, door, skylight, basement hatch, and window so that it shall be reasonably weathertight, watertight, rodentproof, secure, and capable of affording privacy, and: ... (3) Ensure that windows and doors accessible from the outside have working locks. (4) Ensure that door locks to individual housing units, or to shared facilities or rooms associated thereto, function as designed and as prescribed by the manufacturer. (5) Change the keys or combination for each positive locking device to individual housing units when occupants change.
Full Breakdown
" Three itemized duties under that umbrella cover locking hardware specifically. Subsection (D)(3) requires the owner to "ensure that windows and doors accessible from the outside have working locks," covering any exterior opening a stranger could reach, not just the main entry door. Subsection (D)(4) reaches inside the unit: door locks "to individual housing units, or to shared facilities or rooms associated thereto," must "function as designed and as prescribed by the manufacturer," so a lock that turns but does not latch, or was installed contrary to spec, fails the standard.
Subsection (D)(5) is the rekeying rule: the owner must "change the keys or combination for each positive locking device to individual housing units when occupants change," so a new tenant cannot be handed a unit a prior occupant, or their guests, can still unlock. A related but opposite rule sits in (D)(2): emergency egress windows must open "without the need of keys, tools, or special knowledge," because an occupant escaping a fire cannot be trapped behind hardware that requires a key. ) notes the deficiency, and if the director of licenses and inspections finds "reasonable grounds" under § 18-100, the owner receives a written notice with 21 to 60 days to fix it, or 5 days if the condition is life-threatening, before a citation issues under § 18-101.
Violations & Fines
An owner who leaves an exterior door or window unlocked, installs a unit lock that does not function as manufactured, or fails to rekey between tenants is cited the same as any § 18-51 violation: notice under § 18-100, then a citation under § 18-101 carrying civil penalties up to $100 per day capped at $7,500 per violation under § 18-104(B), plus a possible $250-per-day fine under Connecticut General Statutes § 7-148(c)(10)(A).
Frequently Asked Questions
Does my Hartford landlord have to rekey the locks between tenants?
What counts as a working lock under the housing code?
Can my bedroom window be locked so I can't escape in a fire?
What happens if my landlord ignores a broken door lock?
Sources & Official References
Other rules in Hartford
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