# Must a Montgomery County MD landlord provide AC? | Who Pays the Repair?

> Montgomery County landlords must supply and maintain air conditioning capable of holding habitable spaces to 80 degrees or below June 1 to September 30.

**Who pays:** landlord

In Montgomery County, the landlord must supply and maintain working air conditioning capable of holding habitable spaces to 80 degrees Fahrenheit or below from June 1 to September 30.

**Boundary:** Montgomery County Code Sec. 29-30 requires landlords to supply and maintain air conditioning service in safe and good working condition, and COMCOR 29.30.02 sets a standard of no more than eighty degrees Fahrenheit in each habitable space between June 1 and September 30 of each year.

**Exceptions:** Under a single-family lease, replacement or repair of air conditioning systems is excluded from the tenant maintenance clause unless required because of actions of the tenant or any person for whom the tenant is legally responsible.

## Sources
- [Montgomery County Code Sec. 29-30. Obligations of landlords](https://codelibrary.amlegal.com/codes/montgomerycounty/latest/montgomeryco_md/0-0-0-137284) — "Except when required for reasonable maintenance and repair, supply and maintain air conditioning service either through individual air conditioning units or a central air conditioning system in a safe and good working condition so that it meets the requirements of Section 26-7." (accessed 2026-10-21)
- [COMCOR 29.30.02 Air Conditioning Service Required](https://codelibrary.amlegal.com/codes/montgomerycounty/latest/montgomeryco_md_comcor/0-0-0-93916) — "landlords of rental housing must supply and maintain air conditioning in safe and good working condition that is capable of maintaining a temperature of no more than eighty degrees Fahrenheit (80°F.) in each habitable space at a distance of 3 feet above the floor between June 1 and September 30 of each year." (accessed 2026-10-21)
- [Montgomery County Code Sec. 29-30. Obligations of landlords](https://codelibrary.amlegal.com/codes/montgomerycounty/latest/montgomeryco_md/0-0-0-137284) — "a lease for a single-family dwelling unit may provide that a tenant must pay, up to a maximum annual amount set by executive regulation, for the costs of maintenance ... or air conditioning systems unless replacement or repair of these items is required because of actions of the tenant or any person for whom the tenant is legally responsible" (accessed 2026-10-21)

_Last verified 2026-10-21. Source: Who Pays the Repair? — https://whopaystherepair.com/rules/montgomery-county-md-landlord-air-conditioning-required/ — every claim checked against a primary source before publication (see /methodology/)._