Your One-Stop-Shop for Effective Commercial Office Cleaning and Building Maintenance Services in New York City. Novel Service Group is a building service contractor located in NYC that offers all the support you need to deliver well-managed, clean, safe and efficient premises for your people. We provide a guaranteed level of performance that is measured and reported on. We provide a tailored, measured commercial office cleaning, janitorial and building maintenance services for organizations across New York City; Manhattan, Brooklyn, Queens, Bronx and Staten Island.