In most California rentals, it is not illegal for a landlord to fail to provide air conditioning. State habitability law requires heat, plumbing, weatherproofing, and other basics, but cooling is treated as an amenity rather than a necessity. That default changes in specific situations: when your lease promises AC, when the unit came with a working system, when you live in rent-stabilized housing or in Los Angeles County, and when a disability makes cooling a medical need.
What State Law Actually Requires
California Civil Code 1941.1 lists the conditions a rental must meet to be legally habitable. Heating appears on that list. Air conditioning does not.1California Legislative Information. California Code Civil Code 1941.1 – Untenantable Dwelling A unit with no cooling system, in a building that was never built with one, generally meets state habitability standards no matter how hot it gets inside.
That is beginning to shift. SB 655, passed in 2025, declares a state policy that every dwelling should be able to reach and maintain a safe maximum indoor temperature, and directs state agencies to build that policy into their programs starting January 1, 2027.2California Natural Resources Agency. California’s Extreme Heat Action Plan The law is a policy statement, not a direct order to landlords, and the enforceable rules will depend on how agencies write them.
When Your Landlord Does Owe You Cooling
Your Lease Promises Air Conditioning
If your written lease says the unit includes air conditioning, the landlord has to keep it working. A broken AC in that situation is a breach of the lease, and you can pursue standard contract remedies. The obligation comes from what was promised, not from Civil Code 1941.1.
The Unit Came With a Working AC System
Even when the lease is silent, an air conditioner that was working when you moved in is generally treated as part of the housing services you agreed to. The California Department of Consumer Affairs takes the position that amenities provided under a lease are usually enforceable based on the parties’ intent, even where their absence alone would not make the unit legally uninhabitable.3Department of Consumer Affairs. Rental Housing and Repairs – Who’s Responsible For What and How To Get Repairs Made A landlord who removes a working unit or lets it fail without repair is reducing what they gave you.
You Live in a Rent-Stabilized Building
In Los Angeles, the Rent Stabilization Ordinance defines “housing services” broadly and treats a reduction in services as an unlawful rent increase if the rent isn’t reduced to match.4Los Angeles Housing Department. Reduction in Housing Services If your rent-stabilized unit came with a functioning AC and the landlord stops maintaining it, you can petition the local rent board for a rent reduction reflecting the lost service. Other California cities with rent stabilization have similar frameworks with their own procedures.
You Live in Los Angeles County
Los Angeles County has gone further than the state. Its Indoor Maximum Temperature Ordinance caps indoor temperatures in rental units at 82 °F and requires landlords to provide a way to maintain that limit. As of September 2025, tenants already have the right to install portable cooling devices and other non-mechanical cooling measures. Enforcement of the 82 °F ceiling begins January 1, 2027, with more time for small landlords to comply.5Los Angeles County. Los Angeles County Indoor Maximum Temperature Ordinance Tenants elsewhere in California should check their local housing code, because other cities may adopt similar rules.
You Have a Disability That Makes Heat Dangerous
The federal Fair Housing Act requires landlords to make reasonable accommodations in rules and policies when a person with a disability needs the change for equal use and enjoyment of their home.6Office of the Law Revision Counsel. 42 USC 3604 – Discrimination in the Sale or Rental of Housing For tenants with conditions like multiple sclerosis, heart disease, or certain respiratory illnesses, that can mean the landlord must waive a rule against window units or allow portable AC equipment the building would otherwise prohibit. You provide documentation from a healthcare provider showing the disability-related need. The landlord isn’t necessarily required to pay for the equipment, but they cannot refuse a reasonable modification you’re willing to fund yourself.
You Live in a Section 8 Unit or Licensed Facility
Properties in the Section 8 Housing Choice Voucher program must pass HUD inspections that include a line item for ventilation and cooling and require windows to be in functional condition.7U.S. Department of Housing and Urban Development. Housing Choice Voucher Program Inspection Checklist HUD does not explicitly require mechanical air conditioning, and the standard focuses on adequate ventilation. Stricter rules apply in licensed settings. California requires residential care facilities for the elderly, skilled nursing facilities, and licensed childcare facilities to maintain safe indoor temperatures with minimum and maximum thresholds, which in practice means providing cooling.2California Natural Resources Agency. California’s Extreme Heat Action Plan
What You Can Do When Your Unit Is Too Hot
Ask in Writing First
Before any legal remedy is available, the landlord has to know there’s a problem. Put your request in writing, describe the issue and the indoor temperatures, and keep a copy. Written notice is what starts the clock on most remedies below.
Repair and Deduct
If your lease covers AC or the system was part of the unit, Civil Code 1942 lets you hire someone to make a repair and subtract the cost from your next rent payment, up to one month’s rent, after giving the landlord reasonable notice and time to act. You can use this remedy up to twice in any 12-month period.8California Legislative Information. California Code 1942 – Hiring of Real Property Repair-and-deduct works for fixing an existing system. It will not help you install cooling from scratch in a unit that never had it.
Complain to Code Enforcement
Local housing authorities and code enforcement offices investigate habitability complaints. Where local law sets a temperature standard, as in Los Angeles County, an inspector can order the landlord to correct dangerous indoor heat. Elsewhere, an inspector may still act if inadequate ventilation or another defect creates a health hazard.
Withhold Rent After a Citation
Under Civil Code 1942.4, a landlord cannot demand or collect rent on a unit that a housing inspector has cited as substandard if the violations remain unrepaired 35 days after written notice. A tenant who proves a violation can recover actual damages, special damages between $100 and $5,000, and attorney’s fees.
Sue in Small Claims Court
If a broken AC caused you specific financial losses, such as the cost of portable cooling equipment, hotel stays during a heat wave, or medical bills from heat-related illness, small claims court can be a practical route to recover those expenses.
Move Out as a Last Resort
Civil Code 1942 also permits a tenant to vacate and stop paying rent when conditions are genuinely dangerous and the landlord refuses to fix them.9California Legislative Information. California Code CIV 1942 – Repairs and Deductions The problem has to be severe enough to threaten health or safety, and this step is worth taking only after documenting the conditions and your requests to the landlord.
Your Landlord Cannot Retaliate
Civil Code 1942.5 bars a landlord from evicting you, raising your rent, or cutting your services for 180 days after you report a habitability problem or file a complaint with a housing agency. The protection applies whether the complaint was oral or written, and it covers situations where an inspector cites the property after you complained.10California Legislative Information. California Code CIV 1942.5 – Retaliatory Eviction The Fair Housing Act adds a separate prohibition on retaliating against anyone who reports housing discrimination, including a denied disability accommodation request for cooling.11U.S. Department of Housing and Urban Development. Report Housing Discrimination
Help Paying for Cooling
Tenants who cannot afford cooling costs may qualify for the federal Low Income Home Energy Assistance Program, which covers both heating and cooling. California received $212 million in LIHEAP funding for federal fiscal year 2026, and local energy agencies administer the program across the state.12California Department of Community Services and Development. Low Income Home Energy Assistance Program The federal Weatherization Assistance Program funds insulation, duct sealing, and air sealing that can reduce indoor temperatures, and it prioritizes elderly residents, people with disabilities, and households with children. Weatherization generally does not install air conditioning systems, but the efficiency work it funds can make a noticeable difference in an older, uninsulated unit.