American Residential Services of Memphis, Tennessee, provider of heating, air conditioning and plumbing services, acquired the assets of Greenstar Home Services. Greenstar, provider of plumbing and HVAC services, has locations in Orange, California, and Las Vegas, Nevada. The California location will retain the Greenstar brand and continue to operate as an independent service center. The Las Vegas location will be consolidated with the ARS brand, Yes! Air Conditioning and Plumbing.