Get matched with top heat pump installers and replacers in Rockford, MI

SULLIVAN Heating, Cooling & Plumbing is West Michigan’s most trusted provider for residential HVAC and plumbing services. We specialize in installation, repair, maintenance, and emergency service for furnaces, air conditioners, water heaters, boilers, and plumbing systems. Our certified technicians deliver reliable, energy‑efficient solutions tailored to your home’s needs.\nFrom keeping your family warm through harsh Michigan winters to ensuring cool, dependable comfort in the dog days of summer, our team is here to help. Homeowners choose Sullivan for our fast response times, honest recommendations, quality workmanship, and 5‑star customer care.\nWhen Your Comfort’s in Trouble, Call SULLY on the Double!

"We got central air installed to our central heating system and replaced our aging water heater. Travis was easy to talk to and up front and honest about everything, he carefully walked me through every step of the process and made it easy to understand what he was doing. After he sent the final quote he realized that there was the incorrect AC unit on there and quickly called me to alert me to that and make sure I was good to proceed, which I thought was fantastic. He was very flexible on when the install was going to happen and once he and his guys got here they were courteous and professional and the install was relatively quick and painless. He was dead on with his time estimate (about 8 hours) and got everything cleaned up after he was done. Overall a great experience. I would definitely recommend him to people in the Lansing area, he was great!"

"I won't call anyone else for my heating, cooling or electrical services. They've installed my AC, tankless water heater & 'today 4 new smoke/co detectors I love Service Professor"

"Quenton and his helper did a great job for use. He replaced our furnace and A/C unit. I had another well-know company come out first and give me a ridiculous quote. Boroff Mechanical was awesome."

"Hired JT to install central air into our home. He was very polite and professional throughout the installation. He took the time to explain the process completely. The install went flawlessly, the work area was cleaned up better than new. Any questions my wife had after the installation were answered promptly and professionally also. Highly recommended, will definitely use his company for any future projects."