A ONE GEOTHERMAL INC
Registered
238990 - All Other Specialty Trade Contractors
Serving Earlham, IA
(515) 758-2559Website:a-onegeothermal.com. (opens in a new tab)Request a Quote from A ONE GEOTHERMAL INC
Location: PO Box 100, Earlham, IA 50072Iowa Contractor Registration
- Reg. #
- C102444
- Expires
- January 18, 2027
Source: Iowa Division of Labor contractor registration data, licensed under CC BY 4.0. Look up this registration
About hvac contractors in Earlham
HVAC contractors install, service and repair furnaces, air conditioners, heat pumps and ductwork. HVAC contractors replace furnaces and central air conditioners, install heat pumps and ductless mini-splits, perform seasonal tune-ups, seal and balance ductwork, add humidifiers and air filtration, and respond to no-heat emergencies.
Typical cost: $5,500–$14,000 for a furnace or central AC replacement. See the full cost guide
Typical U.S. ranges from industry sources (2024–25); not EdgeLocal data. Your quote will vary with scope, materials and location.
Questions to ask this contractor
- Ask for a load calculation: A Manual J calculation sizes equipment for your actual home.
- Compare equipment line by line: Match model numbers, efficiency ratings and warranty terms across quotes.
- Verify mechanical licensing: Iowa and several neighboring states license HVAC/mechanical work.