Mario Lopez

Mario Lopez is the owner of Atticman Heating and Air Conditioning & Insulation, a Sacramento-based HVAC and home performance company. With a background as an HVAC technician, insulation professional, and business manager, Mario brings hands-on trade experience together with strong leadership in sales, energy systems, and construction management. Since founding Atticman in 2015, he has focused on building a company that raises the standard for what HVAC and insulation contractors should deliver. Outside of day-to-day operations, Mario is passionate about business education, sharing hard-earned lessons through podcasting and industry conversations, and staying deeply connected to the Sacramento community he serves.

Guest Column

How Atticman Raised the Bar, Not Their Headcount, to Build an Elite HVAC Team

Why disciplining talent, monitoring install quality, and shifting from ‘revenue first’ to ‘profit first’ unlocked sustainable growth

Chris Lollini Mario Lopez

February 8, 2026

Atticman shows how a focus on people, processes, and financial clarity transforms an HVAC company into a standard-bearer.

On Demand As AI workloads and high-density computing push traditional cooling methods to their limits, the data center industry is accelerating the adoption of next-generation HVAC technologies.

In this webinar we will detail what HVAC material buyers and technicians need to know when selecting duct mastics, including matching mastic to substrate, alternatives to liquid mastic, and where UL 181 Listings fit into real world installations.

Mario Lopez

ARTICLES

How Atticman Raised the Bar, Not Their Headcount, to Build an Elite HVAC Team

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