Sandium Heating and Air Conditioning is a heating, ventilation and air conditioning (HVAC) company. Based in Sunnyvale, Calif., the company offers a range of products, including air conditioners, heat pumps, furnaces, air filtration systems and duct-free split systems. It supplies products from an array of manufacturers, such as Carrier, Lennox, Honeywell, American Standard, Sears, Bryant and Goodman. In addition, Sandium Heating and Air Conditioning renders home performance evaluations, equipment replacement, installation and equipment repair services. It is a Better Business Bureau (BBB) accredited firm.