Commercial Cleaning Services

30+ Years of Trusted of Commercial Cleaning Services

GMP Cleaning

We follow strict ISO standards for cleaning and sanitation of cleanrooms in various industries such as biomedical, pharmaceutical, manufacturing, nanotechnology and research facilities.

Commercial Cleaning

We have a rigorous hiring process ensuring we only hire the most professional employees for cleaning your property. We provide all commercial cleaning services and janitorial services needed for complete building maintenance.

Safe and Insured

Our team is background checked and have years of experience so you can know your property is in good hands. We are a fully insured commercial cleaning company.

Cleaning Services

Commercial Building Maintenance (CBM) offers janitorial services in Maryland and DC, with over 30 years of janitorial and commercial maintenance and commercial cleaning experience. We’ve been serving Maryland commercial real estate owners and property managers since 1985, and during that time we’ve earned our reputation as a reliable and trustworthy Maryland commercial maintenance company. Our clients highly rate our janitorial services and maintenance services, and love that we go above and beyond for them. If you are looking for a comprehensive janitorial service, you’ve found it!


Medical Centers



Office Buildings

Property Managers

Shopping Centers/Malls


What Our Clients Say

I have had the pleasure of doing business with CBM for almost 20 years. Mr. Mulgrew and his staff have always been very professional and easy to work with. They always pay attention to detail and are willing to go the extra mile and handle any special requests promptly. I would recommend their services highly and look forward to continuing our relationship.

Sam G. Manager, Facilities

Our building has never looked cleaner. We've been working with CBM since 2008 and have never been disappointed by their service. They've assisted us with weekly building cleaning and the occasional handyman issue. Thank you CBM!!

Robert G. Building Manager

Learn How We Can Help You