Performance Plus has been serving Greater Indiana and Lower Michigan since 1917. The firm is a provider of a wide range of services, such as commercial contract cleaning, construction cleanup, carpet cleaning, floor maintenance programs, window cleaning, wholesale air filter sales and service, janitorial supplies and equipment and snow removal. It caters needs of a wide range of office buildings, health facilities and industrial facilities. Based in Michigan City, Ind., Performance Plus is a member of the Building Service Contractors Association International.