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

• Gas Appliances Servicing
• Gas Line Installation & Repairing
• Water Heaters

North American Industry Classification System (NAICS) Categories:

• Power And Communication Line And Related Structures Construction > Gas Line Installation & Services
• Hardware Stores > Plumbing & Heating Supplies Retail > Water Heaters
• Appliance Repair And Maintenance > Appliance Repair Services > Gas Appliance Repair

Standard Industry Classification (SIC) Categories:

• Constructing Water, Sewer, Power, & Communication Lines And Pipelines > Gas Line Installation & Services
• Hardware Stores > Hardware Stores, Nec > Water Heaters
• Repair Shops And Related Services, Nec > Appliance Repair Services > Gas Appliance Repair