About
Green Horizon One Hour Heating & Air Conditioning serves Durham and the greater Raleigh-Durham Triangle area as a locally operated branch of the One Hour Heating & Air Conditioning franchise network. Founded in 2007 by Bobby Ferrel and Walker Harris on principles of energy efficiency, occupant health, and minimal environmental impact, Green Horizon has partnered with WaterFurnace International to offer ground-source geothermal heat pump installation and service. Their geothermal capabilities cover residential systems in Raleigh, Durham, Chapel Hill, Greensboro, Charlotte, and surrounding communities. The company offers comprehensive HVAC services including geothermal installation, air conditioning, heating, indoor air quality, and insulation. Green Horizon holds WaterFurnace dealer status and brings dedicated geothermal expertise to the mixed-climate Piedmont region. The Durham office is located at 4628 Industry Lane, Suite C. Verified active operator per https://www.onehourheatandair.com/raleigh-durham/ + WaterFurnace dealer locator (Bundle 6 audit 2026-05-29)
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Green Horizon — Durham, North Carolina
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