Contact Us

DM Supply Source LLC, is one of the premier HVAC controls distributor in the industry and supply some of the most widely known controls in our industry. We take pride in what we do and do our best! DMSS primary focus is the customer and supplying you the part you need when you need it! Our customer base consists primarily of Industrial Accounts, Mechanical and Service Contractors, Educational Institutes, Health Care Facilities, Government Agencies and Property Management,

Operating Hours Monday-Friday 8AM to 6PM EST

phone number 877-927-3677

Local 570-664-8611

Fax 570-227-0002

General Email Inquire :

Technical Support :

Sales Inquire :

Billing Inquire :

Billing Address : 1725 E Susquehanna St, Allentown PA 18103

We're happy to answer questions or help you with returns.Please fill out the form below if you need assistance.