About Us

Great Bay Facility Services, Inc., and Great Bay Facility Maintenance Service Inc., have been serving the Seacoast area's businesses needs for commercial cleaning, carpet cleaning, custodial services, upholstery cleaning, hard surface cleaning, tile and grout cleaning, water removal, and dry ice blasting for more than 21 years.

A family-owned company started up by Jack Kimball, the goal of Great Bay is to be the ultimate, resource for the area's businesses when they need services related to, and for, professional, high-quality cleaning.

In fact, our reputation for quality has made Great Bay the leader in providing custodial services for one of the most demanding industries, health care.

We are also proud to say that we have on numerous occasions offered our entire portfolio of clients as references. We can do this with confidence because we know each and every one of our customers will provide the very same positive recommendation.

Yet we do all of this while keeping in mind the importance of the "bottom line" for our clients when signing on for any kind of service plan or cleaning service. At Great Bay, we offer excellent quality for a very reasonable price.

To better serve our customers from a more central location, Great Bay also has moved our corporate headquarters from Portsmouth to Rochester.

From our new home base, we manage a staff of over 25 to service and professionally clean a growing number of facilities. We offer those who work for us flexible schedules and work near their homes.

If you are looking for a quality company for commercial cleaning services such as carpet cleaning, upholstery cleaning, or water remediation, Great Bay is the ideal choice.

Contact us today! It will be one of the best decisions you will ever make.

Our Team

We have a professional staff with a turnover rate much lower than the rest of the industry. That's because we make every effort to place them in facilities that are close to their homes and provide them with schedules that work around their family's schedule and other commitments. Many of our employees have been with Great Bay for more than five years.

Our Owner


The owner of Great Bay, Mr. Jack Kimball, received his Business Degree from the University of Lowell in Lowell, MA. He is also a U.S. Navy Veteran of the Vietnam Era.

Mr. Kimball understands the importance of a clean and wholesome environment, as well as the discipline and organization required for a company to be successful.

Contact us today and give Great Bay the opportunity to provide your business with a comprehensive commercial cleaning service proposal for your facility.

It will be one of the best decisions you will ever make.

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