Customer Resources

Customer Resources


Accounts Receivable – please send questions to

Accounts Payable – please send questions to

General / Sales – please send questions to

Lien Wavers

Lien Wavers are to be sent to Cameron Hahn ( for processing.

Customer Credit Application

Completed Credit Applications are to be sent to Devette Hogan ( for processing.
Download New Customer Credit Application

Download Credit Card Authorization Form

Credit Cards

We accept the following credit cards as payment:

apple payvisadiscoveramerican expressmastercard

Product Catalog

Hahn-Mason Air Systems maintains stocked warehouses in Charleston, SC and Charlotte, NC. A large selection of air distribution products, air terminal units, commercial fans, and other HVAC products can be provided overnight to any Carolinas job site.

phone number.