In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Brynn Cooksey Sr, CEM, CMS. He is the Founder of Air Doctors Heating & Cooling and HVAC U (Building Scientists). He discuss the business side of home performance contracting and explains how contractors can build highly profitable businesses by focusing on diagnostics, customer education, and measurable results. The discussion explores customer qualification, maintenance retention, team training, operational systems, and the financial benefits of delivering complete solutions instead of simple equipment replacements. Brynn also shares practical advice for business owners looking to scale their companies through better processes, stronger customer relationships, and a commitment to quality.

Brynn a leading training organization focused on HVAC, building science, and home performance. With experience in both utilities and contracting, Brynn has become a respected educator and industry leader, helping thousands of contractors improve their technical knowledge, business operations, and customer outcomes through data-driven solutions.

Expect To Learn:

- Why not every homeowner is the right customer for your business

- How home performance testing creates trust and supports premium pricing

- The connection between quality installations, customer retention, and referrals

- How Brynn trains employees to embrace building science principles

- Why bigger-ticket projects can improve profitability and efficiency

- The role of processes, CRMs, and administrative systems in scaling a business

- Key hiring and financial lessons for contractors looking to grow sustainably

Timestamps: 00:00 - Introduction 00:55 - Finding the Right Customers for Long-Term Success 02:10 - Building Customer Loyalty That Lasts for Generations 05:47 - Turning Expertise Into a Repeatable Business Model 08:08 - Creating a Training Culture That Scales 09:59 - Building Processes That Make Quality Consistent 10:33 - Why Bigger Tickets Create Better Business Outcomes 12:37 - Unlocking Revenue Beyond Equipment Replacement 13:19 - The Hidden Cost of Oversized Equipment 17:56 - Financial Lessons Every Contractor Needs to Learn 18:47 - Closing Thoughts

Follow our Guest Brynn Cooksey Sr, CEM, CMS:

LinkedIn: https://www.linkedin.com/in/theairdoctor/

Instagram: https://www.instagram.com/theairdoctor313/

Company LinkedIn:

Air Doctors Heating & Cooling: https://www.linkedin.com/company/airdoctorshvacservice/

HVAC U (Building Scientists): https://www.linkedin.com/company/hvac-ubuildingscientists/

Company Website:

Air Doctors Heating & Cooling: https://www.airdoctorshvacservice.com/

HVAC U (Building Scientists): https://www.hvactrain.com/

Company Instagram:

Air Doctors Heating & Cooling: https://www.instagram.com/airdoctorshvac

HVAC U (Building Scientists): https://www.instagram.com/hvac_university