Warren-Hay Mechanical

We’ve helped homeowners and businesses with heating and cooling since 1993. From our home in Hillsborough, North Carolina, we serve Raleigh, Durham, Chapel Hill, Carrboro, Hillsborough, and Myrtle Beach, South Carolina. As a family-owned and operated team, we value lasting relationships and work to provide practical indoor-comfort solutions without pressuring our customers to buy equipment they do not want or need.

Our NATE-certified service technicians repair, maintain, and install residential and commercial HVAC systems. We are a Trane Comfort Specialist, and we service and maintain all brands. Our work includes air conditioners, furnaces, heat pumps, ductless mini-splits, smart thermostats, indoor air quality solutions, and geothermal systems. We also provide indoor air quality inspections, home performance testing, safety inspections, preventive maintenance, and service agreements with biannual tuneups. When replacement is appropriate, we inspect existing equipment and perform new load calculations to help select a system suited to the property’s temperature and humidity needs.

Hillsborough’s older buildings can present distinct heating and cooling challenges, and our technicians have experience retrofitting climate-control systems in older properties. We also develop efficient HVAC designs for new construction and install replacement systems. For customers considering ground-source technology, we can explain geothermal options and help determine whether a geothermal system is suitable for their home or business. We are proud to hold certification from the International Ground Source Heat Pump Association, reflecting our dedication to ground-source heat pump technology. Whether we are addressing a cooling problem, planning a heating-system replacement, or maintaining existing equipment, we focus on informed recommendations, careful system selection, and year-round comfort.