Mackay Heating and Mechanical is a full service HVAC system installation and repair service. We repair all makes and models of HVAC systems, from home heating, furnaces, and Air Conditioners to Commercial units for office buildings and apartment complexes, Mackay's is the NW Suburbs' choice for over 20 years. Why choose Mackay's? Just ask our customers-75% have us come back for future services and over 90% refer us to their friends. Mackay's- where we treat your family like our family!. Linens|Radiant Heating|Heating Equipment|Commercial HVAC Equipment|Restaurant Appliances|Custom Restaurant Supplies|Ventilation Equipment|Ventilation Equipment|Air Conditioning Equipment|Beverage Equipment||Repairs|Repairs|Commercial HVAC|Refrigeration Contractors|Service|Industrial|Restaurant Equipment Installation|Remodeling|Heating Contractors|Commercial Swimming Pool Service|Pool Service & Repair|Residential Contractors