Feb 25
18m 43s
Most HVAC contractors focus on equipment upgrades, but one of the biggest opportunities for better installs and higher profit is hiding in the ductwork.
In this episode of Service Business Mastery, recorded live at AHR 2026 in Las Vegas, Tersh Blissett sits down with Jarrod Scott from Aeroseal to explain how duct sealing from the inside works, why it is different from traditional mastic and tape, and how contractors can use it to improve comfort, increase system efficiency, reduce callbacks, and create a real competitive advantage.
They also discuss commercial and multifamily applications, how to think about static pressure, and why tighter buildings must still breathe through controlled mechanical ventilation.
What You Will Learn in This Episode
• How internal duct sealing works using physics and pressure
• The difference between duct sealing and duct encapsulation
• How precise sealing improves airflow and energy efficiency
• How much leakage the system can realistically seal
• Whether sealing ducts raises static pressure
• Why responsible contractors think holistically before sealing
• How tight buildings must be paired with mechanical ventilation
• The ROI case for apartment complexes and commercial buildings
• How duct sealing reduces callbacks and boosts customer satisfaction
• How to turn efficiency upgrades into a competitive advantage
Timestamps
00:00 How sealing ducts from the inside works
01:14 The physics behind internal duct sealing
04:22 How large of a leak can be sealed
06:08 Static pressure concerns and responsible installation
08:47 Why buildings must breathe mechanically
10:05 ROI for sealing apartment and commercial HVAC
12:28 Cure time and odor concerns
13:58 Water-based sealant and fire safety
16:03 Reducing callbacks and increasing customer satisfaction
17:29 Turning duct sealing into a competitive advantage
Follow the Host and Guest
Tersh Blissett: https://www.linkedin.com/in/tershblissett/
Josh Crouch: https://www.linkedin.com/in/josh-crouch/
Jarrod Scott: https://www.linkedin.com/in/jarrod-scott-06573835/
Aeroseal: https://www.aeroseal.com
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