Certified Building Services Inc, established in 1982, is a Derwood, Maryland based full-service emergency and janitorial company. They are known for their 24-hour service, including mold and water remediation, lead and asbestos abatement, as well as fire and bio-hazard cleanup. They have a solid reputation for quality service, attention to detail, and innovation. Their team is equipped with trained, experienced staff and management, who are committed to customer satisfaction and exceeding expectations.