Desco Carbonic Inc

Operational for more than 50 years, Shook & Fletcher Mechanical Contractors is a provider of heating and air conditioning services in Alabama. The company offers customized design, computer-aided drafting, an in-house sheet metal fabrication services. It provides services to offices, buildings, medical facilities, churches and educational institutions. Shook & Fletcher Mechanical Contractors is located in Birmingham, Ala.

Based in Birmingham, Ala., Hardy Corporation is one of the few heating, ventilating and air conditioners (HVACs) and plumbing contractors in the United States to house a sheet metal duct and pipe fabricating plant. Founded in 1943, it is a nationally recognized design-build mechanical contractor. The company is one of the most modern duct fabricators to offer automated sheet metal coil line, plasma arc and computer controlled cutting machines. Its plumbing division specializes in commercial, industrial and institutional projects, ranging from running a drain line for a commercial laundry, to the complete installation of a multifunctional medical facility.

Founded in 1984, United States Sprinkler Inc. is a full-service fire sprinkler protection company. Based in Birmingham, Ala., it provides in-house design, fabrication, installation, repair, inspection and maintenance of fire sprinkler systems. The licensed fire sprinkler contractor offers a host of services, such as hydraulic calculations, design water supply, hazard analysis, fabrication, shop drawings, pipe fabrication/precision fabrication and full installation. Some of its types of fire sprinkler systems include wet pipe, dry pipe, deluge systems, rack storage and underground fire mains. United States Sprinkler Inc. is a member of the National Fire Protection Association.