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    STC listens to their customers’ needs and makes sure to meet those needs. Their project follow-up is very, very good and they are prompt with proposals for any future work.

    Ed Connell
    R&D Facility Supervisor

    Sherwin Williams

    You can expect outstanding service from STC because our team consists of highly qualified professionals who are certified in numerous cleaning and inspection processes. These certifications are awarded by the professional associations with which we are proud to be affiliated.

    Individual Certifications:

    • Air Cleaning Specialist (ASCS)
    • Certified Ventilation System Inspector (CVI)
    • Certified Exhaust Cleaning Specialist (CESC)
    • Certified Exhaust Cleaning Inspector (CESI)
    • Professional Exhaust Cleaning Technician (PECT)
    • Certified Environmental Specialist (CES)
    • Certified Mold Specialist (CMS)
    • Certified Mold Inspector (CMI)
    • Certified Mold Remediator (CMR)
    • Ventilation Systems Mold Remediator (VSMR)


    NADCA National Air Duct Cleaners Association
    IKECA International Kitchen Exhaust Cleaners Association
    GSA U.S. General Services Administration
    NFPA National Fire Protection Association
    EAA Environmental Assessment Association
    IAQA Indoor Air Quality Association
    ASHE American Society of Healthcare Engineering
    BOMA Building Owners and Managers Association
    OPFMA Ohio Public Facilities Maintenance Association
    RACCA Refrigeration and Air Conditioning Contractors Association
    FRACCA Florida Refrigeration and Air Conditioning Contractors Association
    NARI National Association of the Remodeling Industry
    COATS Construction Owners Association of the Tri-State

    NADCA was founded in 1989 as a non-profit association of companies engaged in the cleaning of HVAC systems in order to promote source removal as the only acceptable method of cleaning and to establish industry standards. NADCA represents qualified companies engaged in the assessment, cleaning and restoration of HVAC systems and to assist its members in providing high-quality services to their customers.

    IKECA is a non-profit organization committed to fire prevention and life safety by promoting kitchen exhaust cleaning to a higher standard. It has established standards and practices for contractors engaged in kitchen exhaust cleaning. IKECA conducts educational programs and works with regulatory bodies, such as the National Fire Prevention Association to improve existing code regulations.

    GSA (U.S. General Services Administration) establishes long-term government-wide contracts with pre-approved vendors.