Embracing Change in a Digital World

The Story Behind Our Names


in The Beginning

In the early years, Sun State Refrigeration was born from a vision to serve the Phoenix, Arizona community with reliable air conditioning and refrigeration repair services, and it has been a steadfast presence since its inception in 1979.

Founded by Mark Gresin, a proud Phoenix native and veteran, our company has remained dedicated to delivering exceptional residential air conditioning, heating repair, and refrigeration services to both households and commercial establishments.

Mark’s family history, shaped by immigration during the tumultuous era of World War II, laid the groundwork for Sun State Refrigeration’s enduring commitment to resilience and excellence. With his father originating from Latvia and his mother from Rome, Italy, their journey to the United States embodied hope and perseverance.

During the 1930s, our parents faced significant challenges, including the devastating impact of the Great Depression. Like many families during that period, our parents lost pretty much everything they had built and owned before that awful economic time. Afterwards, our entrepreneurial family, consisting of my father and grandparents, left their home in Harrisburg, PA circa 1930 and headed West until they came to a small town known as ‘the Valley of the Sun,’ which was, of course, Phoenix, Arizona.

At that time, Phoenix, Arizona had a population of around 50,000 (total), but it was a fast-growing city, almost doubling its population through the 1920s. Phoenix was a place where anyone with a dream and some drive could stake their claim to the American Dream, especially if they could stand the heat, which made it a perfect future candidate for Sun State Refrigeration!

Following their arrival in Phoenix, our family embarked on a new venture, establishing Gross’ Delicatessen. This became a thriving establishment, renowned for its delectable offerings and inviting ambiance, and flourished from the early 1930s until the early 1980s, becoming a beloved community hub before Mark’s parents retired.

Moving forward a few years, Sun State Refrigeration is not just surviving; it’s thriving! Bob Dylan’s timeless words, “The times they are a-changin’,” perfectly encapsulate our journey into what is now the digital age. Founded in 1979, in an era devoid of the Internet and mobile technology, Sun State Refrigeration has witnessed firsthand the monumental shifts in technology. From the days when computers were the size of large rooms, we’ve come a long way.

Today, Sun State Refrigeration has evolved into Sun State HVAC to reflect the advancements in technology, especially in the realm of the Internet and digital age. While our name has changed, we proudly continue our legacy of excellence and community involvement that Sun State Refrigeration has always upheld. As owner/operators and founders, we remain firmly rooted in the values we always have.

As we adapt to meet the evolving needs of our customers, our dedication to providing exceptional care and professionalism remains unwavering. This commitment is at the core of everything we do, and it will continue to guide us in the future.

Embracing Innovation and Evolution

In 1979, when Sun State Refrigeration was established, the digital landscape was vastly different. Personal computers were just emerging, and cell phones resembled bulky bricks. Continuous connectivity and instant communication were distant dreams.

Our founding principles focused on providing top-notch HVAC and refrigeration services to the Phoenix community. However, as technology advanced, we realized the importance of adapting to the digital age to better serve our customers.

The decision to change our name to Sun State HVAC reflects our evolution into a modern, technology-driven company while maintaining our core values. This signifies our commitment to innovation and excellence in the HVAC industry while honoring our rich history.

In essence, the name change encapsulates our journey of growth and transformation, symbolizing our readiness to embrace the challenges and opportunities of the digital era while staying true to our roots. Thank you for being a part of our journey!

The dawn of the Internet era and its integral role in our lives prompted a significant yet simple change: transitioning from "Sun State Refrigeration" to Sun State HVAC. This change isn't just about keeping up with technology; it's also about enhancing our visibility online making it easier for our valued Phoenix Air Conditioning customers to find us. "HVAC" succinctly encompasses our broad range of services while improving our relevance and searchability online.

Adapting to Digital Convenience

Navigating the Challenge of a Name Change

In the digital era, selecting the right name is not just about branding; it’s about accessibility. The length and complexity of certain words can pose significant challenges, especially in the online realm.

For Sun State Refrigeration, the decision to change our name stemmed from a recognition of these challenges. While our commitment to providing top-notch HVAC and refrigeration services remained unwavering, we acknowledged the need for a name that was easier to type, spell, and remember.

The transition to “Sun State HVAC” was not merely a superficial change; it was a strategic response to the evolving digital landscape. By opting for a shorter, more user-friendly name, we aimed to streamline the accessibility of our services and enhance the overall customer experience.

In navigating this challenge, our focus remained on preserving the essence of our brand while adapting to meet the demands of the digital age. The journey to finding the right name was a thoughtful process, guided by our dedication to delivering excellence in every aspect of our service.

Through this name change, we reaffirmed our commitment to innovation and customer satisfaction, ensuring that Sun State HVAC remains synonymous with reliability, quality, and efficiency in the HVAC industry.

Same Company - Same Owners
Same People!

It’s essential to emphasize that while our name has evolved, our core business remains unchanged. Sun State HVAC, formerly (and still) known as Sun State Refrigeration, is the same company you’ve come to rely on for all your AC repair and service needs. Same company, same owners, same team dedicated to excellence.

We’re here to ensure your experience with us is as smooth and efficient as possible, reflecting our commitment not only to keeping pace with technology but also to leveraging it for better service.

Thank You for Your Continued Support

As we embark on this new chapter as Sun State HVAC, we extend our deepest gratitude for your ongoing support and trust. Here’s to many more years of providing top-notch HVAC services in Phoenix!

Sun State HVAC Are People Who Care

Sean Gresin


Mark Gresin

madi answers the phone, schedules and is general office manager
Office Manager

Dorena Gresin
Office Manager


Rob Simone


Steven Ward
Residential Tech





“Where Honesty Rules!”
and always will!
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