Providing Prompt and Professional HVAC Support Hire our local HVAC company today in Mishawaka, IN, Elkhart, IN or Edwardsburg, MI Your HVAC system is a vital component of your home or business, keeping you comfortable no matter what the weather brings. When you need repairs or maintenance, choose an HVAC contractor you can trust for quality service. SAMS Heating and Air Conditioning has provided top-rated HVAC installations, repairs and maintenance for over 18 years.