Heating and cooling in Farmington Hills
Roughly half of Farmington Hills housing is older than 1980: 53.7 percent of homes were built before then, and older houses tend to carry older furnaces and ductwork. The median home value is $333,200. Homeowners pulling their own mechanical permit face an extra step. Instructions on the Building Division's page, effective August 2026, require a signed, notarized Homeowner Affidavit attached to each BS&A Online permit application, followed by online payment.
Contractors register with the city instead. The page does not name mechanical permit types, so confirm the right category with the division at 248-871-2450, 31555 W. Eleven Mile Road. The city also runs a mandatory Single-Family Rental Dwelling Registration, Safety and Maintenance Inspection Program for rentals. For heat, we use the Detroit Metro airport normals as our nearest station, about 6,067 heating degree days a year (base 65 F). Only DTE Electric reaches Farmington Hills, and the gas is mostly Consumers Energy; confirm by address if you live near a boundary.
A gas furnace replacement points to Consumers Energy's 2026 chart (installs January 1 to December 31, 2026; amounts can change without notice). Farmington, Novi and Southfield have their own offices; for a new thermostat, see thermostat.
What heating and cooling work costs near Farmington Hills
We have collected no quotes for Farmington Hills, 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 Farmington Hills
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 Farmington Hills
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 Farmington Hills
- U.S. Census Bureau, American Community Survey 2023 five-year estimates (tables B01003, B25034, B25077) Read Oct 19, 2026.
- Building | City of Farmington Hills Read Oct 19, 2026.
- Rental Inspection | City of Farmington Hills 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. The source implies this without saying it, so check with the source before you act on it.
- Home Solutions 2026 Qualifying Measures and Incentive Levels (res-programs.pdf) Read Oct 19, 2026.
- LARA BCC Statewide Jurisdiction List (Rev. 10/6/2026) Read Oct 19, 2026.