About Us

DM Supply Source was launched in 2013 with the motivation to offer customers an easy competitive purchasing process from a trustworthy, no nonsense source. Our primary headquarters is located in the Greater Lehigh Valley of Pennsylvania with multiple stocking warehouses strategically placed nationwide.

DM Supply Source is a fully stocking authorized distributor that has quickly gained recognition for becoming one of the leading distributors in the HVACR (Heating, Ventilation, Air Conditioning and Refrigeration) industry. We stock over 150,000 parts and pride ourselves with doing it right the first time. We distribute and stock over 100 distinct HVACR product lines with some of the most widely known manufactures and can provide support with OEM product as well. Our goal is to exceed customer expectations with every exchange. Customer satisfaction is our absolute mission and we pride ourselves with having good old fashion values. “Hard to find Parts”, no problem. We will find you what you need or a solution at a competitive price, every time!


Our staff is highly qualified and has extensive knowledge of the industry. We understand the importance of Excellent Customer Service and handle every request with a sense of urgency.


Our secure site makes the ordering process streamlined and easy. Our online Super Store allows you to easily create online accounts and makes the ordering process flow seamlessly.


Training is conducted at our Allentown location, where a technical library is housed on site to train and inform our staff, the customer and its’ associates about the latest developments in the various control fields.


We will help with product selection, troubleshooting and those “hard to find parts. We are always available via phone, email, or text. We also offer an emergency hot line (570-793-6845), call or text. With our Online tech center, you can get important information directly from the manufacturer!


Getting orders to our customer is our top priority. We will get you the parts you need, when you need them! Whether they ship directly from our warehouse, or direct from the manufacturer.


We are able to ship from several strategic locations throughout the U.S. to provide you and your staff with timely delivery of the materials you need.