Commercial HVAC Experts & Refrigeration Specialists
TrueServ Mechanical’s team of commercial HVAC experts serves businesses and public sector facilities across the DFW Mid Cities area and beyond with dependable service, technical expertise, and real-world experience.
Our team includes certified technicians and commercial refrigeration specialists who understand the urgency of system performance, compliance, and uptime. From HVAC systems to complex refrigeration environments, we deliver solutions that keep operations running smoothly.
Meet the TrueServ Mechanical Team
Elias Hernandez
CEO / Owner
Elias leads TrueServ Mechanical with a focus on creating opportunities for both clients and team members. With over two decades of industry experience, he has helped grow mechanical service operations from early-stage companies into multi-million dollar organizations. His leadership emphasizes long-term growth, operational excellence, and building a company where people can develop and succeed.
Cesar Hernandez
Director of Marketing & Sales
With 25 years of experience in marketing, sales, and business development, Cesar leads TrueServ Mechanical’s growth and client relationship initiatives. He works closely with customers, facility managers, and strategic partners to support long-term relationships.
Manuel Halmagean
HVAC Department Manager
Manny oversees all HVAC installations and leads field teams to ensure projects are completed safely and efficiently. With 24 years of experience, he is known for solving complex challenges and maintaining high standards across every job. His leadership supports both technicians and clients, ensuring consistent results on large-scale installations.
Christopher Hernandez
Lead Technician
Christopher specializes in HVAC and refrigeration service, compliance, and system evaluations. With eight years of industry experience, he has worked his way up from entry-level roles to leading technical teams. He brings expertise in leak detection, system tracking, and refrigeration compliance, helping clients maintain performance and meet regulatory requirements.
Thomas Glass
Foreman / Project Lead
Tommy brings over 25 years of experience in commercial refrigeration installation and project execution. He oversees installations from planning through completion, ensuring safety, accuracy, and efficiency on every job. His extensive background includes large-scale commercial refrigeration systems and national retail projects.
Victor Delgado
Foreman
Victor supports project management, materials coordination, and job execution across HVAC and refrigeration projects. With 14 years of experience, he plays a key role in ensuring projects stay organized, efficient, and aligned with client expectations while continuing to grow within the company.
Kyle McElvain
Foreman
Kyle manages EMS-related projects and installations while supporting team development in the field. With a background in commercial refrigeration and HVAC, he brings both technical skill and a team-oriented mindset, helping ensure projects are completed accurately and efficiently.
Esteban Hernandez
Service & Installation Technician
Esteban handles service calls and supports installation projects across HVAC and refrigeration systems. With years of experience in commercial refrigeration, he is known for problem-solving and maintaining strong performance under pressure.
Manny Marquez
HVAC & Refrigeration Installation Technician
With hands-on experience in commercial HVACR installations, Manny assists with equipment setup, system upgrades, and project coordination across a variety of facility environments. He is committed to delivering reliable work and supporting successful project completion from start to finish.
Dario Perez
Commercial Refrigeration Installation Technician
Dario focuses on refrigeration installation, troubleshooting, and system performance. With hands-on experience leading installations, he ensures systems are installed correctly and operate efficiently.
Alan Aguirre
HVAC & Refrigeration Installation Technician
Alan supports commercial HVAC and refrigeration installation projects with a focus on quality workmanship, jobsite safety, and dependable execution. He works closely with field teams to help ensure systems are installed efficiently and built for long-term performance.
Evelyn Hernandez
Accounting
Evelyn manages financial operations including payroll, job costing, and vendor accounts to ensure profitability and stability across all projects. With experience supporting mechanical service companies and a passion for helping businesses grow.
Commercial HVAC and Refrigeration Experts You Can Trust
TrueServ Mechanical’s team of experienced commercial HVAC experts and skilled commercial refrigeration specialists understand the demands of complex mechanical systems. From rooftop units and cooling systems to walk-in coolers and freezers, our team is equipped to diagnose and resolve issues quickly.
We support retail, grocery, industrial, and multi-location businesses where system reliability is critical. Our approach focuses on long-term performance, helping reduce energy costs, prevent downtime, and extend equipment life.
Learn more about our commercial HVAC and commercial refrigeration services.
Certified Technicians and Industry Experience
Our team includes certified HVAC technicians and refrigeration specialists trained in modern systems and evolving technologies.
- EPA certified technicians
- Experience across commercial HVAC and refrigeration systems
- Energy management and compliance knowledge
We follow industry best practices aligned with the International Facility Management Association.
Serving Businesses & Public Sector Facilities
TrueServ Mechanical provides commercial HVAC and refrigeration services throughout the DFW Mid Cities area, surrounding regions, and beyond for national accounts.
Learn more about our service area.
Schedule Commercial HVAC and Refrigeration Service
Whether you need immediate repairs or ongoing maintenance, our team of commercial HVAC experts and refrigerations specialists is ready to help keep your systems running. Submit a request for commercial HVAC and refrigeration service using our contact form.
Frequently Asked Questions
How do your commercial HVAC experts support multi-site or critical facilities?
Our commercial HVAC experts support multi-site and critical facilities through structured service programs, rapid response, and standardized maintenance protocols. We focus on minimizing downtime, improving system reliability, and ensuring consistent performance across all locations. Our team is experienced in coordinating service across multiple sites while maintaining clear communication and accountability.
What experience does your team have with commercial refrigeration systems?
Our commercial refrigeration experts have extensive experience working with walk-in coolers, freezers, display cases, and full system installations. We support environments where temperature control is critical, including grocery, food service, and industrial operations. Our team handles installation, troubleshooting, compliance, and preventive maintenance to reduce product loss and maintain operational continuity.
Do you work outside of the DFW area?
Yes, while we are based in the DFW Mid Cities area, we support clients in surrounding regions and can accommodate multi-location and out-of-area service needs upon request.