Under most commercial leases—and applicable building codes—the landlord is generally responsible for installing and maintaining fire protection, including smoke detector and sprinkler systems.
But commercial tenants are usually responsible for maintaining smoke and carbon monoxide detectors within their leased premises, including testing the devices regularly and changing the batteries when necessary. Commercial tenants also generally have a responsibility not to obstruct or hinder fire escape routes or to create or maintain fire hazards within the leased premises.
In New Hampshire, commercial landlords are typically responsible for the installation and maintenance of fire protection systems, such as smoke detectors and sprinkler systems, in accordance with commercial leases and building codes. This ensures that the building's infrastructure meets safety standards. On the other hand, commercial tenants have the duty to maintain smoke and carbon monoxide detectors within their specific leased areas. This includes regular testing and battery replacement to ensure the devices are operational. Additionally, tenants must avoid obstructing fire escape routes and refrain from creating fire hazards within their leased spaces. These responsibilities are crucial for the safety of all building occupants and can be stipulated in the lease agreement as well as being governed by state and local fire safety regulations.