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About Us

In only a few short years DM Supply Source, LLC has become one of the leading distribution centers, stocking the most widely known temperature control and process instrumentation devices in the HVAC/R industry (Heating, Ventilating, Air Conditioning and refrigeration).  DMSS distributes a variety of controls products, ranging from OEM product, pneumatic, mechanical and programmable controls.  We can also provide Burner and Flame Safety controls and process instrumentation. 

DM Supply Source is a fully authorized stocking distribution center. We stock over 100,000 parts, and pride ourselves with "doing it right the first time" And “going above and beyond customer expectations”. Customer satisfaction is at is our absolute mission and we pride ourselves on great customer service. 

We have gained the trust and repeat business of hundreds of reputable clients throughout the United States. Our customer base consists mostly of Mechanical and Service Contractors, Educational Institutes, Government Agencies, Industrial MRO, Healthcare facilities, Property Management and more!

CUSTOMER SERVICE/COMPONENTS DIVISION - Our staff is highly qualified and has a vast knowledge of the industry with over 50 years experience. DMSS has access to all of our manufacturers product information and has vast library of discontinued and cross referenced material.

We also understand the importance of Excellent Customer Service and handle every request with a sense of urgency, while making sure to get the job done right.

ONLINE STORE- is secure and makes the ordering process streamlined and easy. Our online Super Store allows you to easily create online accounts and make the ordering process flow seamlessly.

COMPONENTS DIVISION - Our Components Division has both high-quality products and a vast knowledge of the industry.

PRODUCT TRAINING - We conduct training at our Allentown PA location and maintain a technical library to train and inform our staff, you and your staff in the latest developments in various control fields.  Upcoming training is typically held often, watch for emails!

TECHNICAL ASSISTANCE- We will help with product selection and troubleshoot issues in the field or over the phone. With our Online Tech Center, you can even get important information directly from the manufacturers!

DELIVERIES/SHIPPING– Your parts are our Priority! With our extensive stock and distribution network, we can get the parts you need, when you need them! Shipping will typically be determined by DMSS, unless specified otherwise.

NATIONAL INVENTORY - 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.

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