What we do

Founded in 2009, Fresh Air HVAC Sizing specializes in high-end residential mechanical design, bringing precision, building-science expertise, and real-world experience to every project. Over the past seventeen years, we’ve had the privilege of contributing to some of the most distinguished custom homes in Central Texas, collaborating closely with premier architects, builders, and design teams.

Our work is grounded in the principles of building science, thermodynamics, and indoor air quality, recognizing the essential role mechanical systems play in creating comfortable, healthy, and energy-efficient living environments. Through careful analysis and thoughtful coordination, we develop custom HVAC designs tailored to the unique architecture and performance goals of each home.

Collaboration is central to our process. We engage early with architects and project teams to understand design intent, anticipate challenges, and resolve complexity before construction begins. Using advanced modeling and proven field knowledge, we produce designs that are both technically precise and fully implementable.

With every project, our objective is to deliver refined mechanical solutions that integrate seamlessly with the architecture while providing lasting comfort, performance, and indoor environmental quality.

We welcome the opportunity to collaborate.