Best HVAC Companies in Lake Orion, MI (2026)

Oakland Heating & Cooling is a family owned company in Oxford, next to Lake Orion, and it serves Lake Orion. The website covers furnace and AC repair, replacement and tune-ups, duct work, humidifiers and other indoor air work, plus water heaters and commercial service. Help is offered 24/7. You can also get an instant price quote on the site, which mentions free estimates and financing as well. Reviewers mention quick response, clear communication and a technician who texted when he was on the way. Others describe a crew that pinpointed the issue fast, explained the fix and kept the work area clean.

Based in Oxford, next to Lake Orion, D&B Mechanical serves Lake Orion along with Lapeer and Genesee counties. The company handles furnaces, air conditioners, heat pumps, boilers, duct work and humidifiers. It also does water heaters, plumbing and electrical work. Emergency service is available 24/7. The website advertises flat-rate pricing, so the cost is known before you pay, and it lists guarantees on its work. Reviewers mention fast response, with crews arriving within hours or the same day. They describe the technicians as on time, friendly and knowledgeable, and say problems were fixed quickly.

Founded in 1988, Randazzo Heating & Cooling is based in Orion Township and serves Lake Orion from there, about 2.9 miles away. Its work covers furnaces, air conditioners, boilers, ducts, humidifiers and thermostats, along with plumbing and electrical service. The website lists a maintenance plan, rebates and financing. Reviewers mention installation crews that arrived on time, worked steadily through the day and cleaned up before leaving. Several say the installers set up the new thermostat with them and made sure they understood its features. One describes careful routing of ducts and pipes so the new system looked neat inside and out.

Since 1929, Kotz Heating, Cooling and Plumbing has worked on homes and businesses in Oakland County. The family owned company is based in Waterford Township and serves Lake Orion from there, about 9.8 miles away. Heating work includes furnaces, boilers, ductless mini-splits and thermostats. Cooling covers AC installation, repair and maintenance. It also handles indoor air quality, humidifiers and plumbing, and offers 24/7 emergency service. Reviewers mention technicians who are professional, knowledgeable and courteous and who spot equipment problems early. New homeowners describe a technician who explained their system clearly and booked the follow-up work before leaving.

Plumbing and drains are a big part of the work at Carter's Plumbing, Heating & Cooling of Clarkston, which is based in the Village of Clarkston and serves Lake Orion from there, about 7 miles away. On the HVAC side, it installs, maintains and repairs furnaces and cooling systems, along with humidifiers and dehumidifiers. Plumbing services include water heaters, tankless units, sump pumps, water softeners, drain clearing and camera inspection. Financing is offered. Reviewers mention clear communication, thorough diagnosis and plain explanations of the problem. One describes the company working directly with an insurance company on a claim.