It all began with a vision…
38 years ago Gordon Stillwell founded a company using his knowledge of engineering and his real world experience. For the last three decades, Stillwell-Hansen has been the only authorized sales and service representative in Northern New Jersey for the Liebert Corporation.

Today, Stillwell-Hansen is located in Raritan Center in Edison, NJ. Our facility is over 24,000 square feet and houses our sales force, service department, staff, and warehouse. Our family includes over 75 employees that range in age from 22 to 75 and incorporate a wealth of knowledge, skill and experience.

Founder Gordon Stillwell

June 1926 - November 2008

S/H Datasite is responsible for fire protection and site monitoring of critical systems and facilities. Datasite also assists engineers and firms with blue print mark-ups and CAD drawings.

S/H Parts and Service specializes in Liebert certified parts. Our extensive inventory of Liebert replacement parts is constantly updated and replenished to ensure you will never have to wait days and weeks as you will with other firms. Our service department is on call around the clock to respond to any eventuality. Service contracts range from x to y. The service department also has portable air-conditioning rentals to supplement over stressed systems in the hot summer months or to use as a temporary solution during maintenance or shut down of your primary system.

S/H Heating Ventilation and Air Conditioning represents over a dozen different manufacturers in the heating, ventilating and air conditioning industries. These companies trust the reliability and professionalism that the S/H name implies. We are sure that no matter what your needs and concerns, we will find the right solution for your problem.

S/H Network Power Protection and Electronic Equipment Protection represents the heart and soul of Stillwell-Hansen's relationship with Liebert Emerson Network Power Corporation. Our NPP department offers small scale Liebert units for use by individuals and small businesses looking for the Liebert name which is synonymous with top quality products. EEP vends equipment for larger facilities. Most recently, we have undergone major expansion as a result of the booming telecom industry, as well as the wide spread user of co-location as an alternative to on site hosting of critical systems.

"Building a Better Tomorrow"
We are dedicated to the same beliefs that led to our unabashed success over the last 38 years. As new members are incorporated into our family, we turn our eyes toward the future. Our goal is to deliver professional results; to give you the competitive advantage in today's business world and to prepare you to face the future.