We offer cleaning services for schools, churches, medical facilities, office buildings, and more. We customize our services to meet your specific needs. Ask us about daily, weekly and bi-weekly weekly service. Contracts welcome. Call for a free quote. Serving NH & MA Since 1999 Calden Commercial Cleaning was founded in 1999 by Ken Calden, who began cleaning and carpet cleaning commercial buildings. Our company entered the business with two cleaning accounts and has grown into a full service cleaning business, servicing Southern NH & Northern MA.