AFCO Door Components help to seal up your door. Products include door sills, thresholds, weatherstrip, door bottoms.

We are Columbia Aluminum has been dedicated to developing, manufacturing and distributing weather-strip/door components and floor covering products to the building industry. The finest quality materials have been designed for quick and easy installation and a constant evolution is taking place with our products to remain on the cutting edge of current applications and technologies in order to best serve our customers. 

You can seal gaps and air leaks all around the door using self–stick and nail–on weatherstripping from Frost King. For specific problems, you can choose thresholds, door bottoms and door sets in many coordinated colors and finishes.

Hager Companies offers a complete line of thresholds and weatherstripping products for virtually any type of door application. What’s more, each meets or exceeds ANSI-grade quality, durability, and performance levels. For enhanced levels of safety and security, we also offer intumescent products for positive pressure solutions, including edge sealing and smoke control systems. All of which make Hager threshold, weatherstripping, and door bottom products an excellent choice for standard or custom applications in schools, hospitals, office buildings, and more.

M-D Building Products offers a wide selection of door sweeps, thresholds, doorjambs, door bottoms, and drip caps to weatherproof doors. In addition, they offer push and kick plates and screen door grills.

The variety of gasketing products seal gaps and air leaks all around the door.

Worldwide Door Components Inc. specializes in the production of our New 4Ever Frame door jamb and ProT4 aluminum threshold as well as our complete product line of thresholds, door sweeps, watherstrips and aluminum T-astragals.