The covenant of quiet enjoyment is implied into most residential leases: it gives the tenant the right to possess and use the home without substantial interference from the landlord. In practice that includes a degree of privacy — a landlord generally has to give proper notice before entering, except in a genuine emergency.
Despite the name, it’s not mainly about noise. It’s about not being disturbed in the tenancy itself. Serious interference — an illegal lockout, shutting off utilities, or repeated unlawful entry — can breach the covenant and, if bad enough, amount to a “constructive eviction” that ends the tenant’s obligations. The specific notice rules and remedies vary by jurisdiction, so treat this as general education, not legal advice.
This is general educational information, not legal or tax advice. Rules vary by state and locality and change over time — check your local law and confirm specifics with a qualified professional.