Clyde Johnston Designs - ASGCA designer of golf courses throughout the southeastern United States; view completed projects, find out about design services, or check out job openings. American Air & Water - Offers UV air cleaners, water purifiers and lamps that use germicidal UVC ultraviolet light; includes details on products and services, press releases, and FAQs. Lang's Heating & Air Conditioning - Sells and services traditional, as well as Attic and Crawl Space Encapsulation air systems; includes company profile, details on products and services, and contact information. Engineered Systems - Serves local architects, builders, contractors and owners with mechanical, electrical and plumbing design for high end residential and commercial projects. Includes project details. Low Country Commercial Services - Locally owned independent commercial cleaning company. Includes list of services provided and quote request form. Clean Sweep HHI - Locally owned home and villa cleaning company. Includes list of services and testimonials. Hilton Head Exterminators, Inc. - Provider of pest control services to Beaufort County since 1968; includes details on services, client access, and contacts.