DALLAS, TEXAS – Mario Plascencia, the visionary behind Fillmore HVAC, LLC, and its sister company, Fillmore214, LLC, is no stranger to overcoming adversity. With over 18 years of experience in the Heating, Ventilation, and Air Conditioning (HVAC) field, Mario’s journey from a first-generation Mexican immigrant to a successful business owner reflects his resilience, commitment, and unyielding determination to succeed against all odds.
Originally from Mexico, Mario immigrated to the United States with his family as a teenager. Early on, he faced the challenges typical of many first-generation immigrants—working long hours in odd jobs to support his family. It was during this time that Mario developed a strong work ethic that would shape his future. By his late teens, he was working 12- to 14-hour shifts, weekends, and holidays, knowing that there was no backup plan for him as the first in his family to seek success in the U.S.
In 2013, Mario established Fillmore HVAC, a company dedicated to residential and commercial HVAC services. His wife, Toni Plascencia, became a managing partner in 2014, contributing to the business’s expansion and vision. Together, they have turned Fillmore HVAC into a thriving company, focusing on HVAC design, installation, and service. However, the couple’s journey did not stop there.
In the years following the founding of Fillmore HVAC, Mario and Toni took their entrepreneurial spirit further by founding Fillmore214, LLC, a residential general contracting business. While remodeling remains the core of their business, Mario and Toni’s commitment to excellence spans various areas, including light commercial projects and new construction. Together, they built a diverse portfolio of successful projects, fueled by their passion for transforming homes and communities.
“Making clear and intelligent decisions with Toni and keeping ourselves grounded by being grateful for everything we have—no matter how large or small—is what I perceive as true happiness and prosperity. I am grateful every day,” Mario says, reflecting on the journey that has shaped his business and personal philosophy.
While Fillmore214, LLC has grown to serve the greater Dallas area, Mario’s path has not been without challenges. As a first-generation immigrant, he lacked a roadmap or mentorship to guide him in the complex world of business ownership. This only made his success that much more significant. Mario’s grit and determination, combined with Toni’s encouragement to break free from traditional limitations, drove the couple to build a business that resonates with both their work ethic and their values.
Mario’s success is more than just business—it’s about building relationships and making a difference in the community. His team at Fillmore214 is not made up of salespeople focused on upselling or reaching vendor quotas. Instead, the business fosters a family-first approach, focusing on providing a personal, tailored experience for each customer. For Mario, the goal has always been to establish meaningful relationships with clients—offering a level of service and care that is rooted in mutual respect and trust.
“Unlike many businesses that emphasize up-selling and quotas, we offer a more intimate, personal experience. We focus on treating our customers like family, ensuring that they receive the highest level of service without any pressure,” Mario explains. “Our approach sets us apart because we truly care about the long-term satisfaction of our clients, rather than simply meeting a sales target.”
Fillmore214’s portfolio continues to grow with several successful residential and light commercial projects under its belt. Mario and Toni’s hard work has not gone unnoticed, with numerous clients praising their professionalism, attention to detail, and integrity. Google reviews and client feedback consistently highlight their dedication to delivering quality results on time and within budget.
As a Latino immigrant business owner, Mario has also faced personal and professional challenges that many may never experience. His story is one of perseverance, where each setback became an opportunity for growth and learning. He credits his wife, Toni, with helping him realize his potential and with providing the strength and guidance needed to move forward, especially during the toughest moments. Her support, both personally and professionally, helped Mario understand that immigrant communities can rise above circumstances, see opportunities, and become unstoppable forces in business and life.
“Immigrants rise above circumstances each and every day,” Toni says. “They can see opportunities where others see obstacles. This mindset makes them unstoppable. Mario embodies that mentality in everything he does, and I believe that’s part of why we’ve succeeded.”
Today, Fillmore214, LLC stands as a testament to the hard work, dedication, and values that Mario and Toni hold dear. Mario’s story is one of a man who, despite starting with nothing, has built a company grounded in trust, relationships, and excellence. He continues to look forward, knowing that every challenge he faces is an opportunity for growth, and every success is a reflection of the hard work and integrity that have defined his journey.
For more information about Fillmore214, LLC, or to view their portfolio, please visit the following links:
With a growing reputation for excellence, Fillmore214, LLC is poised to continue making an impact on the Dallas area, providing quality construction and remodeling services while honoring their immigrant roots and commitment to family values.
