Commercial On Site Inc. (COS) is a full service cleaning company. We believe in taking care of our customers as if they were part of our family. For over 30 years, we have taken extra care to ensure quality work at affordable prices. COS is your single best choice for carpet, upholstery, window and other specialty cleaning needs. Commercial On Site Inc. originated in 1972 under the name Clean Masters. Our first account was with Circus Circus Hotel and Casino. Till this day we still maintain this account. In the beginning, Commercial On Site began as a drapery and furniture cleaning enterprise. The founder Kurt Cramer applied the knowledge he obtained from owning and operating a dry cleaning plant to the cleaning of fabrics directly on hotel property. This made for an economical and efficient approach to maintaining draperies and other fabrics for hotels. Today Commercial On Site Inc. is owned and operated by Fay Cramer, Eric Cramer and Shanna Diangson. Since 1972 we have expanded the cleaning services we offer to better accommodate the needs of the hotel industry. We have expanded our services to include window, carpet, pressure washing, high dusting, floral cleaning and construction clean-up.