FortHouse Heating & Cooling is a family-owned, women-owned HVAC company based in Plainfield, IL, serving Naperville and Chicago's western suburbs. We repair, replace and maintain furnaces, air conditioners, and heat pumps. We also install ductless mini-splits. We explain your options and provide clear written pricing before work begins. Our technicians hold EPA Section 608 and NATE certifications. Our company is insured and bonded, with workers' compensation coverage. Every replacement is sized using a Manual J load calculation for your home. Calls are answered 24/7, including nights, weekends and holidays; technician availability is confirmed when you call.