Heating and cooling in Troy
Troy enforces load calculations on new construction. For projects starting January 12, 2026, the city says new and addition residential work needs a performance-based compliance report and the Manual J, Manual S and Manual D design submittals. For replacement-only furnace or AC jobs, its page says alterations to a mechanical system must conform to the requirements for a new mechanical system. For heat we use the Detroit Metro airport normals because that is the nearest NOAA station in our set, about 6,067 heating degree days a year (base 65 F).
DTE Electric and Consumers Energy are the electric and gas utilities whose territory covers Troy, so a gas furnace replacement points to Consumers Energy's 2026 chart (installs January 1 to December 31, 2026, amounts can change without notice). We can cite no Troy city rebate. The Building Department, 500 W. Big Beaver Rd, 248-524-3344, takes mechanical and other trade permits through BS&A Online, and permits needing plan review go in as PDFs by email.
Inspection requests run through BS&A or 248-689-5744, with a 2 PM cutoff. The city's 2026-27 fee schedule lists a $75 minimum mechanical permit; matching it to your equipment is only medium confidence, so confirm the fee with the building department. About 60.5 percent of homes predate 1980. Clawson and Royal Oak are near. Our furnace repair page covers common faults.
What heating and cooling work costs near Troy
We have collected no quotes for Troy, so there is no price for the city itself. The statewide estimates are on each service page, and the Michigan page shows what technicians are paid (the Michigan mean in BLS data for May 2025 is $31.01 an hour, which is pay, not price) and the permit fees that are published. How we estimate costs.
Permits for heating and cooling work in Troy
Mechanical work may not start until a permit is issued, except replacement of minor parts. A furnace, central air conditioner or heat pump replacement is not on LARA's exemption list, which is our inference from the list, not a sentence LARA wrote.
Heating and cooling jobs in Troy
More on Michigan heating and cooling
How to check an HVAC contractor's license · Do you need a permit to replace a furnace in Michigan?
Sources for Troy
- U.S. Census Bureau, American Community Survey 2023 five-year estimates (tables B01003, B25034, B25077) Read Oct 19, 2026.
- Building Department | City of Troy Read Oct 19, 2026.
- NCEI U.S. Climate Normals 1991-2020 annual/seasonal (data service) Read Oct 19, 2026.
- MPSC Electric Utility Service Areas feature layer (State of Michigan, owner powellm14@michigan.gov) + City and Township Boundaries layer Read Oct 19, 2026.
- MPSC Natural Gas Utility Service Areas feature layer (State of Michigan) + City and Township Boundaries layer Read Oct 19, 2026.
- Home Solutions 2026 Qualifying Measures and Incentive Levels (res-programs.pdf) Read Oct 19, 2026.
- Troy mechanical permit fee schedule Read Oct 19, 2026. The source implies this without saying it, so check with the source before you act on it.
- LARA BCC Statewide Jurisdiction List (Rev. 10/6/2026) Read Oct 19, 2026.