More than 40 years in the business
Phil grew up in Pearland, Texas, where his passion for heating and air conditioning took root early on. Right out of high school, he packed up and headed to Northern California to deepen his experience in the HVAC world. What started as a job quickly grew into a career, and eventually, he launched and successfully ran his own HVAC company.
Back home to Texas
In 2014, Phil moved back to Texas, setting up shop in Austin, where he continued to thrive in the HVAC industry. Over the years, he expanded his skill set across service, sales, in-house tech support, and even served as a general manager, gaining insight into nearly every facet of the business.
With more than four decades of hands-on HVAC experience, Phil has tackled everything from new construction and full remodels to high-end custom homes and complex commercial systems. His broad background has made him a true HVAC expert—and his experience working closely with contractors, property managers, and homeowners also has given him a deep, practical understanding of the construction world.
Clients appreciate the extra care
But Phil’s real difference-maker is how he works with people. He’s not just someone who fixes what’s broken—he takes the time to explain what’s going on, what your options are, and how to get the most from your HVAC system. His calm, friendly, never-rushed approach has earned him the trust of countless clients over the years.
In his spare time
While living in California, Phil took up scuba diving, motorcycle riding, softball, and even volunteered as a firefighter/EMT—always finding ways to connect with and serve his community. Now that he’s back in Texas, you’ll find him soaking up live music, rooting for the Longhorns, and enjoying the bold flavors of Austin cuisine. He’s always planning his next adventure and road trip.
Phil brings his deep knowledge, steady professionalism, and love for service to every job. For homeowners and businesses in Central Texas, he’s a reliable, experienced partner who truly cares.
Owner Phil Wistner
Why trust Diamondhead?
We are a family-run business that has been helping clients for more than 40 years. Our integrity is everything to us. We will never sell you stuff you don’t need! Hear what our customers say.
