CAS Companies, LP started as a Clean Air Solutions and was a small duct cleaning business to serve the needs of our residential customers. Environmental services were our specialty and we performed not only duct cleaning, but asbestos abatement, mold remediation and mechanical hygiene cleaning services as well. Throughout the years, we have more than tripled our business, staff and company and have moved on to general construction, emergency response clean-up and mechanical services, thus becoming CAS Companies, LP.