Best HVAC Companies in Ortonville, MI (2026)

Blue Fire HVAC LLC is in Ortonville and handles heating, air conditioning and refrigeration for homes and businesses. Plumbing is also listed among its specialties. The work covers installation, service, maintenance and diagnostics. Reviewers mention quick arrivals on evening calls, including an air conditioner that quit on a 95 degree day before a holiday weekend and a boiler that left a home without heat late on a Friday. Other reviewers describe an honest furnace diagnosis and air conditioning work finished on time as promised. Customers can call or text the company to get started.

This Ortonville company does not list a website, so most of what is known comes from customer reviews. Reviewers describe heating repairs and a water heater replacement. In one case, the owner stepped in after a home warranty company offered little help and got a new water heater installed for a reasonable co-pay. Several reviewers mention quick response and fair, competitive prices. Others say the owner takes time to explain the situation and makes sure the system is working properly before the job is done. Customers also note that he stands behind his work, and some have called on the company for years for a variety of issues.

Mills Mechanical is an Ortonville business with no website listed, so its reviews are the main source of detail. The reviews that describe specific jobs focus on plumbing: one customer called to have a water heater replaced and says the plumbers came right away and worked professionally. Other reviewers mention consistent quality work and say they have not had problems with the service. The owner is described as friendly and down to earth, someone who cares about customers and their needs. Because the listing shows little about heating and cooling services, call and ask whether they handle the furnace or AC job you have in mind.

Based in Orion Township, Randazzo Heating & Cooling serves Ortonville from about 12.5 miles away. Its website lists furnaces, air conditioning, heat pumps, boilers, ductwork, humidifiers and generators, and the company also offers plumbing and electrical work. Reviewers mostly describe full furnace and air conditioner installations. They mention crews arriving on time, working steadily through the day and cleaning up before leaving. One reviewer says the installers explained every feature of the new thermostat. Another notes that ducts and pipes were routed neatly inside, and the outdoor unit's lines were tidied so they were no longer an eyesore.

Blessing Company is based in Independence Township and serves Ortonville from about 8.1 miles away. It handles heating, cooling, plumbing and electrical work, with services that include furnaces, boilers, ductwork, humidifiers, indoor air quality and generators. Technicians give an upfront price before starting a repair, and service runs from 8 am to 8 pm on weekdays at the same rate. Reviewers mention same day air conditioning repair during a heat wave, clear explanations of the work before it begins and honest advice about what could wait. One reviewer also describes a hard to trace electrical problem that a technician worked through and solved.