Get matched with top air conditioning pros in Ada, 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!

"Noah figured out my air conditioning problem when others tried and failed. Friendly and knowledgeable."

"Travis came out to my home did a great inspection and explained in easy terms what I needed and what he could supply. Installation of a central air conditioner and furnace was all done in one day! Travis explained how everything worked and made sure I understood my new equipment."

"Service Professor was up front and honest right from the start. We had our vintage 1985 gas furnace replaced with a 92% efficient new model and air. While they were here they also replaced our water heater ( also 1985 vintage ), and an electrical upgrade. Now were "up to code"."

"Jordan was very quick and did a great job installing a new furnace. Completely replaced the entire unit along with the air conditioning unit. Very friendly and respectful and answered all questions asked before, during and after job was completed. Very knowledgeable and explained everything in detail."

"Quenton is very knowledgeable about HVAC Very honest, He added the right size furnace and air conditioner for the size of our house. Others wanted to oversize and up sell to items we really didn't need."

"Furnace stopped working overnight. Called first thing in the morning. Technician was out by 11 am and diagnosed the igniter. Very knowledgeable in any questions i had. Excellent service. Highly recommend."

"The service was excellent. They were on time and professional. I've been very happy with their service."

20+ years experience. Professional, quiet, clean, and affordable on all jobs. I have the manpower and equipment for all residential and commercial jobs. Indoor, outdoor, lawns, landscape, gutters, paint, wash houses/decks, paint inside and outside, Install, remove, you name it

"I will start with first phone call, Ashley was so professionall, and helpfull, telling me a little about the company. Hugo, removed old dishwasher and installed new one. cleand up after he finished. job went very smooth. I own 4 apartments on Lake Bella Vista, I will be using Qualified Maintenance again. Thanks for Great job James Y"