Premier provider of construction cleaning services & environmental services

Marathon Services is a premier provider of construction cleaning services and environmental cleaning services in the Washington Metropolitan Area (DC, VA, MD, and WV). Since 1996, we have developed an expertise in new, final, and environmental cleaning for a wide range of commercial, industrial, and residential construction, including a variety of award winning and LEED Certified buildings.

Marathon Services understands the needs of general contractors, which is why we stay on top of industry cleaning standards and environmental specifications. Owners and architects are more stringent than ever and government fines are stiffening. It has become more important to ensure quality cleaning and environmental safety. Marathon Services uses high-quality equipment that will clean all types of construction sites and we guarantee manpower for the most intense scheduling needs.

At Marathon Services, we are proud to offer 24/7 customer support and affordable pricing. We are not just a construction and environmental cleaning company but, your partner in completing state-of-the-art development projects. We look forward to providing you with unmatched quality and care for your properties.


"Marathon did a great job with the final cleaning, working quickly and efficiently throughout the entire building.  They worked with our schedule and the occasional need to jump out of sequence to facilitate the Owner's needs...Speaking for the entire Clark project team, we were extremely pleased with Marathon's performance and commitment to our project." - Becky Klapmust, Project Manager, The Clark Construction Group, LLC