Ductworks

Ductworks is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Duct Cleaning Heating Air Conditioning Etc
• Plumbing Contractors
• Plumbing Repair & Service
• Sheet Metal Contractors

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Plumbing Contractors > Plumbing Repair & Service
• Other Building Finishing Contractors > Sheet Metal & Duct Work > Sheet Metal Contractors
• Other Services To Buildings And Dwellings > Equipment Cleaning Services > Air Duct Cleaning

Standard Industry Classification (SIC) Categories:

• Plumbing, Heating And Air Conditioning > Plumbing Contractors > Plumbing Repair & Service
• Roofing, Siding, And Sheet Metal Work > Sheet Metal & Duct Work > Sheet Metal Contractors
• Building Cleaning & Maintenance Services, Nec > Equipment Cleaning Services > Air Duct Cleaning