Heating and air conditioning in general and the interest in detailed technology of furnaces, heat pumps and alternative energy were the foundation for Horace and Scott Kelly, when they started the heating and air conditioning contractor and service company Carolina Heating Service, Inc. in 1981 in Greenville SC.

At Tuck & Howell Plumbing, Heating & Air, they are proud to serve the Duncan community with comprehensive heating and AC repair services. Their skilled technicians have honed their expertise to ensure the home remains comfortable, no matter the season.

Whole Building Systems, LLC (WBS), established in 2010, is a best in class high performance building automation technology solutions developer and consultancy firm that uses state-of-the-art technologies and analytic tools such as Building Information Modeling (BIM) and process change strategies to assist clients in improving the performance of new and existing buildings including historic structures.