Replacement Air Conditioner AND Heater Experts
Factory Direct Pricing, Best Prices Nationwide

More than a just a Manufacturer’s Rep

We here at Great Lakes Supply eat, breathe, and sleep PTACs. We know them all, sell them all and stock them all. We proudly serve the hospitality, health care, assisted living, educational and multi-family housing industries, and enjoy having an integral part of the entire product life cycle. You could refer to us a “manufacturer’s rep”, but we’re really much more than that! Instead our application engineers are helping you from start to finish.

Many of our projects begin in the engineer and architect office. Once our quality brand is specified we work closely with each distribution channel to make sure the product is not only specified correctly but also delivered on time with the correct accessories. Once the product is carefully delivered we work closely with the installing contractors to ensure an error-free installation. We are always available to ownership, property management & maintenance staff, there are no questions, comments and/or concerns that go unanswered. Training is available for any of our product lines at your facility or ours. Our industry partners have greatly benefited from our 100+ years of combined experience. Please give us a call to learn how we can add value to your next new construction or renovation project!

Call us for Replacement Needs

Great Lakes Supply stocks everything! We can replace approximately 99% of the in-room / packaged heating and cooling units ever produced with exact fit replacements. We specialize in locating hard to find HVAC items so you don’t have to waste time searching. We offer custom thru-wall, water sourced heat pumps, fan coil, gas fired PTAC units, room air conditioners, hotel energy management systems, mini split systems, vertical PTAC units, high efficiency hand dryers, patio heaters, all styles of electric heat, Hospitality TVs, Appliances, Compact fridges etc.