A privately owned professional cleaning company that has been serving the New Jersey area since 1983, when you call Cahill Building Service, you are calling Tom Cahill, a lifelong Bergen County resident and founder of the company. Established in 1983 and thriving since, Cahill Building Service has made a name for itself by being the most customer-centric company in the area, committed to quality craftsmanship. Since its inception, the company has put the clients needs first and a quarter of century later, that remains its focus.