A Background of Integrity and Hard Work.

With strong family values and a dedication to customer satisfaction as our cornerstones, Horizon has grown steadily from a local, coastal South Carolina Lowcountry plumbing service to one of the most respected mechanical contractors in the country with annual sales over $22 million.

Horizon is headquartered in the beautiful South Carolina Lowcountry and guided by Mark Keith, a third generation plumbing contractor with more than 30 years experience, and Gina Keith, both of whom are graduates of the University of South Carolina. Together they lead a corporate family of over 100 employees operating all across the country.