Habitability & Safety7 min readJuly 19, 2026

Extreme Heat and Your Cooling Obligations: A Landlord's Summer Guide

Another record-breaking summer has put cooling front and center. Heat is no longer a comfort issue—it's increasingly a habitability and safety issue. Here's what landlords need to know before the next heat wave hits.

Why this matters now

A growing number of states and cities have added maximum indoor temperature rules to their habitability codes. Even where no specific law exists, a broken AC during a heat emergency can trigger habitability and duty-of-care claims. Rules vary widely by location—always confirm your local requirements.

For decades, housing codes focused on heat in the winter—landlords in most jurisdictions have long been required to keep units warm during cold months. Cooling was treated as an amenity, not a right. That assumption is changing fast. As extreme heat events become more frequent and more dangerous, lawmakers, courts, and tenants are increasingly treating a livable indoor temperature in summer as part of a property's basic habitability.

Is Air Conditioning Legally Required?

The short answer: it depends entirely on where your property is located. There is no single national standard. Requirements generally fall into three buckets:

1. Maximum-temperature jurisdictions

A growing number of cities and states set a maximum indoor temperature (often around 82–85°F) that a rental must be able to maintain during hot months. In these places, functioning cooling is effectively required.

2. "If provided, must be maintained" jurisdictions

The most common rule. AC may not be mandatory, but if your unit comes with air conditioning—or you advertised it—you are typically required to keep it in good working order and repair it promptly.

3. No explicit cooling requirement

Some areas still have no specific rule. Even here, general habitability and duty-of-care obligations can apply during a declared heat emergency, especially for vulnerable tenants.

"Even if cooling isn't explicitly mandated where you operate, an air conditioner you provided is a promise you made. When it fails in a heat wave, tenants—and courts—expect you to act fast."

Handling AC Repair Requests in a Heat Wave

During extreme heat, a broken air conditioner isn't an ordinary maintenance ticket—it can quickly become an emergency, particularly for elderly tenants, young children, and people with medical conditions. Treat it accordingly:

  • Acknowledge immediately. Confirm you received the request and give the tenant a realistic timeline the same day.
  • Prioritize by risk. A failed AC during a 100°F stretch should jump to the top of your queue over cosmetic issues.
  • Offer interim relief. Portable AC units, fans, or covering a few nights at a hotel can bridge the gap while parts or an HVAC tech are arranged.
  • Document everything. Keep a timestamped record of the request, your response, and the repair—your best protection if a dispute arises.

The vulnerable-tenant factor

If you know a tenant is elderly, disabled, or has a heat-sensitive medical condition, the urgency—and your potential liability—rises significantly. When in doubt during a heat emergency, act as if cooling is required. Providing a temporary solution costs far less than a habitability claim or, worse, a heat-related medical emergency.

Get Ahead of the Heat

The landlords who handle summer best are the ones who prepare before temperatures spike. A little off-season planning prevents most heat-wave emergencies:

  • Service HVAC systems in spring so failures surface before the first heat wave, not during it.
  • Know your local rules for maximum temperature and cooling obligations, and keep it in writing.
  • Line up an HVAC contractor in advance—the busiest vendors book out fast once a heat wave begins.
  • Be clear in your listings and leases about what cooling is provided, so expectations are set from day one.

Respond faster with the right tools

When a heat emergency hits, response speed is everything. RentPager helps you triage maintenance requests, notify tenants instantly, dispatch vendors, and keep a timestamped record of every step—so an urgent AC repair never slips through the cracks.

The Bottom Line

The rules around summer cooling are shifting, and the direction is clear: heat is being taken more seriously every year. Whether or not your jurisdiction currently mandates air conditioning, the safest and smartest approach is the same—treat a livable indoor temperature as part of providing a home, respond to cooling failures with urgency, and prepare before the heat arrives.

Protecting your tenants from dangerous heat isn't just compliance—it's good business and the right thing to do.

This article provides general information about habitability and cooling obligations and is not legal advice. Requirements vary significantly by state and city—consult a qualified attorney or your local housing authority for guidance specific to your properties.

Want more landlord guidance?

Follow our blog for practical, landlord-focused insights

Read More Articles