At Grand Slam, we go beyond heating and cooling. Every home we visit receives a complimentary Smart Thermostat.




It’s more than just a thermostat. It’s your personal comfort assistant, designed to help your family breathe easier, save money, and stay comfortable through Chicago’s toughest winters and hottest summers.
At Grand Slam Heating & Cooling, our mission is to deliver family-owned, honest service that homeowners can trust. Here’s what customers are already saying about their experience with us:
“Professional, friendly, and fast! They explained everything clearly and had my furnace running the same day. Highly recommend.”
Yes! Families are welcome to nominate themselves or someone they know.
Upgrade today, pay later. With flexible financing offers, you can enjoy year-round comfort without upfront costs, subject to credit approval.