American Residential Services (ARS) is a United States network of plumbing, and home and commercial heating and air conditioning (HVAC) businesses, operating under the trade name ARS/Rescue Rooter.

The trade name came from the acquisition and merging of ARS and Rescue Rooter by their then-parent company ServiceMaster.

[6] In 1996, ARS was founded to consolidate local and regional HVAC service companies.

Shortly after, The Servicemaster Company, based in Downers Grove, Illinois, acquired both Rescue Rooter and ARS, in 1998 and 1999 respectively, and brought them together under the "ARS/Service Express" brand.

The company eventually dropped the "Service Express brand and the parent brand was known primarily as “ARS/Rescue Rooter.” In October 2006, ARS/Rescue Rooter was then acquired from ServiceMaster by two private equity firms, Caxton-Iseman Capital and Royal Palm Capital Partners, for $100 million.