A leading provider of contract cleaning services to commercial and high security facilities since 1976

Company History

Mister Kleen Maintenance Company, Inc. (Mister Kleen) was founded in 1976 by the late Ernest Clark, Sr. We are a family-owned and professionally managed Federal Small Business headquartered at our state-of-the-art facility in Alexandria, Virginia.  The company is now led by the second generation of Clarks – Ernest Clark, Jr., CBSE, President, and Dianna Clark, RBSM, Vice President of Operations – and has a third generation providing daily leadership.

The Clark family remains the sole shareholders

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In 1976, Mister Kleen provided janitorial and maintenance services consisting of office, retail, window cleaning, snow removal, and landscaping.  Later we began a special services division providing water and fire restoration, floor care, carpet and upholstery cleaning, and many other needed services.  Through hard work and determination, we built a name for ourselves, streamlined our services and provided janitorial services to many large Class A commercial office buildings throughout the DC Metro region.

Mister Kleen has had an unrelenting passion for the health and welfare of our employees and the tenants of our buildings.  Our founder was diagnosed with a rare form of meningitis in 1985 as a direct result of the environment in which he worked.  We take pride in being a vital part of the “Green Kleening” movement.  As a certified Green Seal (GS-42) company, Mister Kleen not only uses environmentally preferable products and processes, we also help guide many of our clients through their Leadership in Energy and Environmental Design (LEED) certifications.


After the events of September 11, 2001, our leaders recognized that stricter requirements for maintenance workers accessing high security and government facilities would be implemented and quickly guided the company in a new direction.  Our team worked hard to obtain the credentials to properly service the high security sector.  Mister Kleen is now proud to be one of the leading providers of high security facility cleaning and maintenance in the DC Metro region.

For over 40 years, Mister Kleen has continued to raise industry standards as a leading provider of contract cleaning services to Commercial and High Security facilities in the DC metro region.  We also provide a variety of interior and exterior specialty services.