This is one of the most common questions we get from buyers touring homes without air conditioning: Can I add A/C?

The short answer is yes—you can add A/C to almost any home. The longer answer? It depends on the home’s existing heating system, the budget, and how much work you're prepared to take on. Here’s a quick breakdown of what to consider when evaluating this with your clients.

Key Factors to Consider:

Forced Air Furnace = Easiest Path
If the home already has a forced air furnace, that’s great news. The ductwork is already in place, so installing a central A/C system is typically straightforward and cost-effective.
Boiler System = Bigger Lift
Homes heated by a boiler (radiators, baseboards, etc.) do not have ductwork, so adding central A/C will require installing a separate duct system. An increasingly popular alternative? Ductless mini-split systems, which are easier to retrofit and provide room-by-room control.
Evaporative Cooler Present?
It’s a common misconception that an existing swamp cooler limits your A/C options. In reality, evaporative coolers and A/C systems operate independently. A home can technically have both—but most homeowners opt to remove the evaporative cooler once A/C is installed.

BOTTOM LINE:
Almost every home can be upgraded with air conditioning, but the cost and complexity vary greatly depending on the existing heating setup. Knowing what system is in place—and what alternatives are available—can help set the right expectations for your buyers and open the door for helpful vendor referrals.

Pro tip: If installing A/C, consider heat pump options that provide both heating and cooling. Split system heat pumps are available that look and operate just like a traditional A/C, but with the added benefit of providing efficient heating to supplement a furnace.