Top 7 HVAC companies in Oakland, Michigan

Oakland County sits in a heating-dominant climate zone with roughly 6,400 heating degree days against only 700 cooling degree days. Public listings show seven contractors that meet the minimum signals for ranking. The list below is built solely from those listings and the published Bayesian adjustment formula; it is not a performance audit.

Installed costs in Oakland County

Installed-cost data for Oakland County converge on a narrow band. A typical full-system replacement is listed at $9,800, with the observed range running $8,800 to $10,800. The 2025 invoiced average sits at $10,300 while the upper quartile reaches $14,249. Labor is reported at $110 per hour. Permit fees fall between $100 and $400 according to the issuing jurisdiction. The two independent cost sources agree closely, reducing the chance that either figure is an outlier.

These numbers cover standard gas-furnace and central-air packages. Cold-climate heat-pump installations, when pursued, add variables not captured in the base range. Homeowners should request itemized quotes that separate equipment, labor, and permit fees.

The shortlist

Companies are ranked by a Bayesian-adjusted rating. A company's star rating is pulled toward the national mean until it has enough reviews to stand on its own, so a 5.0 from four customers does not outrank a 4.9 from two hundred. Small tie-breakers apply for a public website, for being listed as an HVAC specialist rather than a general contractor, and for published 24/7 availability. This is a shortlist built from public listing data, not a review of work performed.

Oakland Heating & Cooling

Oakland Heating & Cooling operates from 697 S Lapeer Rd Ste B, Oxford, MI 48371 and lists (248) 953-1385. Its 136 reviews produced a raw 5.0 that the adjustment pulled down only 0.043 points to 4.957 before tie-breakers lifted the final score to 5.017. The firm appears as a general contractor yet publishes 24/7 availability and maintains a public website. Those signals placed it first. The volume of reviews means the adjusted score sits close to the raw rating; smaller operators show larger gaps.

R & R Mechanical Heating & Cooling

R & R Mechanical Heating & Cooling is located at 240 Park St, Troy, MI 48083 and can be reached at (248) 629-9185. Forty reviews at a raw 5.0 were adjusted downward 0.101 points to 4.899 before the website tie-breaker produced the final 4.939. The firm lists as a general contractor without published 24/7 hours. Its review count is large enough that the adjustment moved the score noticeably below the raw rating.

David's Heating & Cooling

David's Heating & Cooling lists 24361 Greenfield Rd Ste 207, Southfield, MI 48075 and the number (248) 654-8796. Ninety-six reviews at 4.9 were adjusted upward 0.028 points to 4.868 because the raw score sat above the national mean of 4.764; the website and 24/7 signals then produced the final 4.928. The firm is carried as a general contractor. The adjustment distance remained modest given the substantial review count.

Stewart Heating and Cooling

Stewart Heating and Cooling is based at 4511 Delemere Blvd, Royal Oak, MI 48073 and answers at (248) 549-0400. Twenty-two reviews at a raw 5.0 moved downward 0.136 points to 4.864 after adjustment; the website tie-breaker raised the final score to 4.904. The firm appears as a general contractor without published 24/7 availability. With fewer than thirty reviews the adjustment gap is wider than for the leaders.

One Hour Heating and Air Conditioning of NE Oakland County

One Hour Heating and Air Conditioning of NE Oakland County operates from 357 Rochester Rd, Leonard, MI 48367 and lists (248) 955-4822. Zero reviews produced a raw score of 0 that the adjustment raised 4.764 points to 4.764 before website and 24/7 signals produced the final 4.824. The firm is listed as a general contractor. The large upward adjustment reflects the complete absence of review data.

Heating & Cooling Oakland County

Heating & Cooling Oakland County is located at 2439 Hilton Rd, Ferndale, MI 48220 and can be reached at (248) 749-7287. Nine reviews at a raw 5.0 were adjusted downward 0.182 points to 4.818. The firm lists as a general contractor, maintains no public website, and does not publish 24/7 availability, so no tie-breakers applied. The small review count created the largest downward adjustment among the five-star entries.

Hvac Company

Hvac Company lists 22200 W Eleven Mile Rd Ste 3471, Southfield, MI 48307 and the number (248) 870-3234. Two reviews at a raw 5.0 moved downward 0.221 points to 4.779 after adjustment; the 24/7 tie-breaker raised the final score to 4.799. The firm appears as a general contractor without a public website. The tiny review count produced the widest adjustment gap in the shortlist.

Licensing and permits

Michigan mechanical contractor licensing is administered at the state level by the Michigan Department of Licensing and Regulatory Affairs (LARA) — Bureau of Construction Codes (BCC), Mechanical Division. The license types include Mechanical Contractor with an HVAC Equipment classification plus separate classifications for hydronic work, ductwork, refrigeration, and limited or unlimited service categories. No state-level surety bond is required for the Mechanical Contractor license. Workers' compensation coverage becomes mandatory once a business regularly employs three or more workers or one worker for 35 or more hours per week over 13 weeks. General-liability minimums are not specified on the board's pages for this classification.

Mechanical permits are issued locally by whichever agency enforces the Michigan Mechanical Code in that jurisdiction. A homeowner occupying a single-family dwelling may perform the work without holding a license but must still obtain the permit. License lookup is available through the state's Accela portal. Homeowners should confirm the current status of any contractor directly with LARA rather than relying on listing data.

Local climate demands

Oakland County falls primarily in IECC zone 5A with lake-effect moisture. Winter design temperature is 5 °F and summer design reaches 89 °F. Heating degree days total 6,400 while cooling degree days total only 700, confirming a heating-dominant load profile. Natural gas remains the primary heating fuel and central-air saturation is already high.

Equipment must therefore handle long heating seasons and occasional extreme cold. Cold-climate heat pumps require supplemental heat in this market. Proper sizing is critical because oversized cooling equipment short-cycles during the short, humid summer and fails to dehumidify adequately. Installers must account for the extended heating season when calculating loads.

Available incentives

Michigan Home Energy Rebates through EGLE remain limited. Heat-pump rebates can reach $8,000 when funding is available. No state tax credit exists. Utility programs from DTE Energy and Consumers Energy offer $150 to $1,300 in rebates. Michigan Saves financing requires the installer to be an Authorized Contractor, which adds a vetting step and a dispute-resolution channel. Federal 25C and 25D credits expired at the end of 2025; only the commercial 48E ITC survives for third-party-owned systems. Homeowners should therefore ask every bidder about Michigan Saves status even when financing is not required.

How to choose an installer

Verify the Mechanical Contractor license through the LARA lookup tool before signing any agreement. Request itemized quotes that separate equipment, labor at the prevailing $110 rate, and the local permit fee. Ask whether the firm participates in the Michigan Saves network. Compare the Bayesian-adjusted score and review count rather than raw stars. Confirm that the contractor pulls the required local mechanical permit. These steps narrow the field to firms whose public signals align with the scale of work being contemplated.