PREM Magnetics on Chapel Hill Rd, Johnsburg, IL. There is a bank on the land across the road on the upper left.

Building to the right of PREM is the McHenry Township Company 2 (Johnsburg) Firehouse.

Prem Magnetics, Inc. (large building) located at 3521 Chapel Hill Rd. in Johnsburg. Prem was founded in 1972 by W. T. Peterson and Frank Prem that created custom engineered magnetic components.

Johnsburg had it first organized fire department when in 1954 the McHenry Township Fire Protection District, Station No. 2 was established. In 1963, it moved from a rented building to a new station at 3605 N. Chapel Hill Rd. (right of Prem building). The fire department built a new facility on Johnsburg Rd. in 1990. Roger and Anne Liston, owners of Prem Magentics purchased the vacated fire house and converted it to a day care center primarily for the company's employees which open in 1993. In 2006, the half of the building was occupied by Now Hair This Salon and in 2009, Jubilee Lutheran Church occupied the other half.

Tom Huemann Water Conditioning company held a grand opening in August 1976 at the 3607 N. Chapel Hill Rd. location (partial seen lower far right). His company started in 1964. In 1962, Trans-Coil Industries, Inc. occupied the building followed by Werner Schilling (interior remodeling) in 1968. In 1976, Dodge Plumbing and Heating also occupied the facility. Currently, Mike's Brass & Woodwind occupy one of the spaces facing Chapel Hill Rd. Huemann Water Conditioning is located in a building on the back lot of the property.