Hiller provides residential and commercial service and repair throughout Tennessee, Southern Kentucky, Northern Alabama, Southeastern Arkansas, Northeastern Mississippi, Northern Georgia, and Northwest Florida. As the homeowners'​ premier provider of choice with a 100% Satisfaction Guarantee of "Happy You'll Be or the Service Is Free!", Hiller is Tennessee's largest residential plumbing, heating, air conditioning, and electrical services provider. Hiller, a 12-time honoree to the Inc. 5000 list, employs more than 800 team members, operates over 500 service vehicles across 16 locations, and has responded to over 1.5 million service calls. Launched in 1990 with just $500 and a single employee – 24-year-old Jimmy Hiller, founded his company on tenets that no one else in Middle Tennessee had been offering and are now signatures of the Hiller brand: requiring technicians to wear shoe covers, maintaining clean work areas, providing upfront and flat-rate pricing, and round-the-clock repair services.