Description
Equipment and Materials Testing: Plumbing, Heating, and Waste Disposal Equipment

Possible NAICS Codes
238220 – Plumbing, Heating, and Air-Conditioning Contractors
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
561790 – Other Services to Buildings and Dwellings
541380 – Testing Laboratories and Services
562991 – Septic Tank and Related Services
236220 – Commercial and Institutional Building Construction
238290 – Other Building Equipment Contractors
541350 – Building Inspection Services
541690 – Other Scientific and Technical Consulting Services
562211 – Hazardous Waste Treatment and Disposal