Maintaining or replacing a heating, air conditioning or ventilation system is not as simple as it may sound, especially within larger and sometimes older institutional buildings.
On the one hand, you're trying to keep your occupants comfortable, on the other, keeping a handle on operating and maintenance costs.
As is often the case within larger institutional properties, your building is probably equipped with several types of technologies touching on various technician profiles. Rooftop air conditioning systems, central chillers, boilers, swimming pool dehumidification systems, digital control systems, which can all be found in a given facility, and are all defined globally as HVAC systems, in reality touch on five different applications. It can be a frustrating and expensive venture to find a service provider who can competently handle this diversity.