Custom roof curbs and adapters built to order!



Since 1958, M&M has provided quality sheet metal products to the HVAC industry. Starting as a two man shop, M&M has grown to become an industry leader of today with six technologically advanced manufacturing centers.

Commercial Products are manufactured at M&M's Dallas and South Forth Worth plants in Texas. A full line of commercial HVAC duct and accessories are available. Everything from spiral pipe and fittings, rectangular duct and fittings, to custom sheet metal fabrication is produced at these facilities.

Custom Roof Curbs and Curb Adapters are also fabricated to specifications for any HVAC brand of equipment.

Contact any member of the sales and design team for available options to any product, including wide selection of materials, painting options.

If you would like to submit existing curb adapter information, please Click Here.