Dependable Solutions Designed to Exceed Your Expectations.
Your Satisfaction is Our Priority—Every Service, Every Time.
Service First has been servicing our McQuay heat pumps and doing an excellent job, always on time. I highly recommend them!
Owner Operator
oel Cuellar Owner, Operator, and Founder of Service First USA In 2002, Joel Cuellar founded Service First USA with a vision to elevate the HVAC service industry. With a passion for innovation and a commitment to excellence, Joel set out to redefine how HVAC services are delivered—focusing on quality, reliability, and collaboration. Under his leadership, Service First USA has become a trusted name in the industry, pioneering new approaches to HVAC/R maintenance and repair while fostering strong partnerships with other professionals. Joel’s dedication to innovation and teamwork has not only transformed his company but has also raised the bar for the entire HVAC service community. With over two decades of experience, Joel continues to lead Service First USA with a steadfast commitment to delivering top-notch service and creating lasting relationships with clients and industry partners alike.
Ownwer Operator
o-Founder and Owner-Operator of MGR Mechanical Mario Garcia, a seasoned expert in HVAC systems, is the co-founder and owner-operator of MGR Mechanical. Since 2002, Mario has been a trusted collaborator with Service First USA, contributing his vast technical knowledge and dedication to excellence. From the very beginning, Mario and Service First USA founder Joel Cuellar have worked hand-in-hand to elevate the HVAC industry. Through this enduring partnership, Mario has brought innovative solutions and reliable expertise to countless projects, ensuring quality and customer satisfaction every step of the way. Mario’s commitment to collaboration and excellence has made him an invaluable partner to Service First USA, as well as a respected leader in the HVAC community. His work continues to shape the future of the industry, delivering top-tier service and results that stand the test of time.
Lead Tech
Felix Martinez Lead Technician at Service First USA Felix Martinez, as the Lead Technician at Service First USA, brings unparalleled expertise and dedication to every project. With years of hands-on experience in HVAC/R systems, Felix has become a cornerstone of the team, known for his technical precision and problem-solving skills. Felix takes pride in ensuring every service call is handled with professionalism and efficiency, upholding the high standards Service First USA is known for. His ability to troubleshoot complex issues, mentor fellow technicians, and maintain strong relationships with clients has made him a trusted leader within the company. Committed to excellence and continuous learning, Felix plays a vital role in delivering reliable, high-quality HVAC/R solutions that meet and exceed customer expectations. His contributions help Service First USA remain at the forefront of the industry
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