Warren's Heating & Air Conditioning is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Air Conditioning & Heating Systems
• Heating & Air Conditioning Contractors

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Heating Contractors
• Warm Air Heating And Air-Conditioning Equipment And Supplies Merchant Wholesalers > Heating & Cooling Systems & Equipment

Standard Industry Classification (SIC) Categories:

• Plumbing, Heating And Air Conditioning > Heating Contractors
• Warm Air Heating & Air Conditioning > Heating & Cooling Systems & Equipment