Chimney sweeps are not typically members of unions. The Chimney Safety Institute of America provides certification to chimney sweeps. The National Chimney Sweep Guild is a membership organization for chimney sweeping companies, and it also provides certification. The National Fire Protection Association provides useful information about fire prevention.
- Air Quality Engineers
- Airport Service Workers
- Bricklayers and Stonemasons
- Building Automation Systems Engineers
- Building Automation Systems Technicians
- Building Performance Diagnosticians
- Business Managers
- Carpenters
- Cement Masons
- Construction Laborers
- Electricians
- Engineers
- General Maintenance Mechanics
- Glaziers
- Grounds Managers
- Heating and Cooling Technicians
- Indoor Environmental Health Specialists
- Janitors and Cleaners
- Landscapers
- Locksmiths
- Marble Setters, Tile Setters, and Terrazzo Workers
- National Park Service Employees
- Painters and Paperhangers
- Parking Attendants
- Plasterers
- Plumbers and Pipefitters
- Property and Real Estate Managers
- Real Estate Developers
- Resort Workers
- Restaurant and Food Service Managers
- Roofers
- Security Consultants
- Security Guards
- Sports Facility Managers
- Stationary Engineers
- Welders and Welding Technicians