Best HVAC Companies in Royal Oak, MI (2026)

Warm or Breezy Heating & Cooling is in Royal Oak and handles furnaces, air conditioning, ductwork and maintenance plans. Its website stresses proper sizing and installation quality, and says it helps customers weigh equipment options without unnecessary pressure. Reviewers mention a Saturday visit to diagnose an AC unit, followed by a clear list of repair and replacement options. Others describe thorough inspections, clear communication and quick fixes. One reviewer noted that a technician checked a second unit, caught an emerging issue and gave advice on running the air conditioner more efficiently.

Based in Ferndale, next to Royal Oak, Cregger Plumbing, Heating, Cooling & Electrical serves Royal Oak with a wide service list. On the heating and cooling side, it covers furnaces, air conditioning, heat pumps, boilers, ductwork, mini splits, humidifiers and indoor air quality, plus generators. Plumbing and electrical work come from the same company, which suits a house with more than one project. The website describes a third-generation family team and lists financing and a membership program. Reviewers mention fast, friendly technicians who explain the work clearly and finish quickly, and an estimate process they call easy.

Located in Madison Heights, next to Royal Oak, Leo's Heating and Cooling serves Royal Oak. The website lists 24/7 emergency service, maintenance plans, indoor air quality work and generators, along with electrical and water heater service. Reviewers repeatedly mention same-day help: an AC fixed within hours on a 100 degree day, and a furnace repaired on a Saturday after the technician tracked down a needed part. Several describe repairs finished in about 30 minutes. Other themes include clean work, clear communication, flexibility and a fair price. Reviewers also note the owner coming out to do the work himself.

Royal Oak is home base for Stewart Heating and Cooling, which calls itself Oakland County's hometown heating and cooling company. Its work covers furnace repair and replacement, boiler repair, air conditioning and indoor air quality. Reviews point to long relationships: one customer has used the company for almost 10 years across two houses, and another called back for a second furnace replacement at a new home. Reviewers mention same-day appointments when furnaces failed in deep cold, and an AC visit within 24 hours on a 90 degree day. They also describe technicians who arrive on time, answer questions and diagnose problems quickly.

Based in Ferndale, next to Royal Oak, Air Master serves Royal Oak with furnace, air conditioning, heat pump, ductwork and generator work, and its website mentions warranties. Positive reviews describe a new Lennox furnace and air conditioner installed during a cold spell, with office paperwork handled quickly. Another reviewer with hot water heat and no ductwork had a ductless mini split system fitted to cool the house. Reviewers mention text and email reminders, a technician profile and live arrival updates before a city furnace certification inspection for a rental property, plus technicians who wear shoe covers indoors.

In Royal Oak, Comfort Zone Heating, Cooling, and Electrical grew from a single van to serving Metro Detroit. HVAC services include furnaces, air conditioning, heat pumps, boilers, ductwork, humidifiers and generators, plus maintenance plans and financing. Reviewers describe installs where the crew cleaned up, tested both the furnace and AC, and walked the homeowners through the system. One reviewer noted that during an AC condenser install, the crew inspected the furnace and flagged a cracked heat exchanger. Others mention fair prices, on-time visits, an appointment moved up two days and sensible options for a more reliable system.

Over in Oak Park, next to Royal Oak, Owens Heating & Cooling LLC serves Royal Oak with residential and commercial heating and cooling. Its list covers furnaces, boilers, air conditioners, water heaters, humidifiers, safety inspections and camera inspections. Reviewers mention same-day service on a Saturday, an arrival within two hours of calling, and AC repair during 95 to 100 degree heat. One customer booked a furnace service visit and had a new furnace and thermostat working two days later. Reviewers also describe text and phone updates before arrival, honest answers and clear options.