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We just wanted to let you know how impressed we were with the Gleason & Elfering team. Obviously, a furnace is somewhat of a blind item to lay people. So, in a sense, we had to find not simply “something”, but “someone” to trust. We commend you, not only for taking the time to answer all those questions intelligently, but for being cheerful, neat and unfailingly polite to boot. We will not hesitate to recommend your company to our friends who have heating or air conditioning needs.

Highland Park


Gleason-Elfering's Commercial Heating and Cooling division

can handle any job big or small. Employing a meticulous and comprehensive approach to all HVAC services, we ensure your system is running safely and at peak efficiency.

Keeping your business productive is the key to keeping it profitable. Our routine maintenance and service plans provide a cost controlled means to help reduce the possibility of catastrophic failure and offer a reduced cost for repairs, if that should be needed. 

When moving to new facilities or simply expanding your current location, your HVAC systems are an important consideration. Engage Gleason & Elfering early in your project to ensure continued high employee morale and productivity

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