Duffy Ducts

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

• Air Conditioning Contractors
• Air Conditioning Equipment & Systems Repair & Service
• Furnaces Heating Equipment & Supplies
• Heating Contractors

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Heating Contractors
• Plumbing, Heating, And Air-Conditioning Contractors > Air Conditioning Contractors
• Warm Air Heating And Air-Conditioning Equipment And Supplies Merchant Wholesalers > Stoves & Furnaces Equipment > Furnace Fittings & Repair Parts
• Appliance Repair And Maintenance > Air Conditioning Equipment Repair

Standard Industry Classification (SIC) Categories:

• Plumbing, Heating And Air Conditioning > Heating Contractors
• Plumbing, Heating And Air Conditioning > Air Conditioning Contractors
• Warm Air Heating & Air Conditioning > Stoves & Furnaces Equipment > Furnace Fittings & Repair Parts
• Refrigeration & Air Conditioning Repair > Air Conditioning Equipment Repair