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We wanted to again Thank you and your men on the outstanding job of putting in our new furnace, air conditioner and electrical panel. You were very fine to deal with in helping us with the proper equipment, your proposal and follow-up to do all asked as stated in the contract. Please feel free to use us as a high recommendation to anyone for your outstanding personnel and company. You can be sure that we will mention you to everyone we can

Lake Forest


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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