1. HVAC Installation Business: Offer HVAC installation services for residential and commercial customers who need to install new systems or maintain existing ones.

2. HVAC Maintenance Business: Offer scheduled maintenance services for residential and commercial customers to help keep their HVAC systems running optimally throughout the year.

3. HVAC Part Sales Business: Specialize in purchasing, storing, and selling HVAC parts, components, and accessories to clients as well as providing advice and guidance regarding the selection of HVAC parts and components.

4. HVAC Refurbishment Business: Refurbish and recondition used HVAC systems and components, and then sell the reconditioned units to customers who want to save on costs by not buying new systems.

5. HVAC Consulting Business: Provides advice and guidance to clients regarding the selection and installation of HVAC systems, components, and accessories.