[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All EMCOR Group jobs](https://jobs.opennash.com/companies/emcor-group/) · [Search jobs](/search/) EMCOR Group · Lewisville, TX # Service HVAC Technician Lewisville, TX, US Full-time Skilled Trades & Maintenance Listed on EMCOR Group’s official careers site. Posted April 28, 2026. Check that it is still open and apply there. [Apply on EMCOR Group’s careers site →](https://careers-emcorgroup.icims.com/jobs/49618/service-hvac-technician/job?in_iframe=1) [OpenNash Jobs](https://jobs.opennash.com/) / [EMCOR Group](https://jobs.opennash.com/companies/emcor-group/) / Service HVAC Technician ## Job description ### About Us We are a full-service provider of HVAC construction, service, and maintenance solutions, with expertise in virtually all types of commercial systems. Our team has complete mechanical, electrical, and plumbing (MEP) expertise, and we are one of the few contractors in the industry with in-house engineering and design capabilities in all three MEP disciplines. ### Job Summary About Us: Dallas Mechanical Group (DMG) is a full-service provider of commercial HVAC construction, service, and maintenance solutions. DMG is a subsidiary of EMCOR Group, Inc., and is one of the largest, best-respected HVAC contractors in Texas. DMG is experienced in the installation and service of all types of commercial HVAC systems, offering complete mechanical capabilities. We are one of the few contractors in the industry that offers complete in-house engineering and design capabilities in all three MEP disciplines. In-house engineering helps provide us with tighter control over project quality, budgets, and schedules. On thousands of projects in a range of industries, we have had the privilege of working with some of the state’s leading contractors, developers, universities, governmental and military entities, and medical facilities. Our team has completed projects all across Texas, including Dallas/Fort Worth, Austin, Houston, San Antonio, and more. ### Job Title Service HVAC Technician Job Summary: The HVAC Technician is responsible for troubleshooting, maintaining, and repairing a wide range of commercial and industrial HVAC systems. Demonstrates advanced technical expertise across mechanical, electrical, and controls components to ensure safe, reliable, and efficient system operation. ### Essential Duties and Responsibilities Diagnose, service, and maintain HVAC equipment including small and large split systems, small and large packaged units, large air handling units, mini-split systems, Variable Air Volume (VAV) systems and fan-powered boxes, Exhaust fans and ventilation systems, Self-Contained units and CRAC units, Water-source heat pumps, VRF/VRV systems, Boilers, cooling towers, and pumps. Perform major mechanical repairs including replacement of large motors and compressors, bearing replacement in motors, air handlers, and cooling towers, laser alignment of pumps and rotating equipment. - Conduct preventative maintenance to extend equipment life and improve system efficiency - Analyze system performance and recommend corrective actions or upgrades - Ensure all work complies with safety standards, manufacturer specifications, and applicable codes - Document service activities, repairs, and maintenance actions accurately - Participate in department meetings as requested Qualifications: High School Diploma or equivalent is required. Strong knowledge of commercial and industrial HVAC systems Proficiency with rotating equipment and alignment techniques Ability to work independently and handle complex systems Strong problem solving and troubleshooting skills. Excellent verbal and written communication skills. Ability to adapt to changing priorities. Excellent customer service skills and abilities. Must be organized and able to prioritize tasks. We offer our employees a competitive salary and comprehensive benefits package and are always looking for individuals with the talent and skills required to contribute to our continued growth and success. ### Equal Opportunity Employer/Veterans/Disabled Notice to prospective employees There have been fraudulent postings and emails regarding job openings. EMCOR Group and its companies list open positions here. Please check our available positions to confirm that a post or email is genuine. EMCOR Group and its companies do not reach out to individuals to help with marketing or other similar services. If an individual is contacted for services outside of EMCOR’s normal application process – it is probably fraudulent. #DMG #LI-MM1 #LI-Onsite Equal Opportunity Employer As a leading provider of mechanical and electrical construction, facilities services, and energy infrastructure, we offer employees a competitive salary and benefits package and we are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Equal Opportunity Employer/Veterans/Disabled. Affirmative Action Policy Please review our Affirmative Action Policy. ### Notice to Prospective Employees Notice to prospective employees If an individual is contacted for services outside of EMCOR’s normal application process – it is probably fraudulent. ## At a glance - Posted by the employer: Apr 28, 2026 - First seen by OpenNash: Jul 11, 2026 - Last checked: Oct 18, 2026 - Listed for: 173 days - Location: Lewisville, TX, US - Employment type: Full-time[Apply on EMCOR Group’s careers site →](https://careers-emcorgroup.icims.com/jobs/49618/service-hvac-technician/job?in_iframe=1) ## More jobs at EMCOR Group ### [Dallas Mechanical Group LLC - President](https://jobs.opennash.com/companies/emcor-group/jobs/3402c6f4f1c1c0679e35/) Lewisville, TX, US ### [Commercial Plumbing Service Manager](https://jobs.opennash.com/companies/emcor-group/jobs/484025d14cd8e33a95f6/) Lewisville, TX, US ### [Inside Service Sales](https://jobs.opennash.com/companies/emcor-group/jobs/2bb4bf4365aa734ceca9/) Lewisville, TX, US ### [Project Manager (Construction) On-Site](https://jobs.opennash.com/companies/emcor-group/jobs/04c3bd600f41c982a31d/) Lewisville, TX, US ### [Service Sales Executive](https://jobs.opennash.com/companies/emcor-group/jobs/54a7abee68a11d59535b/) Lewisville, TX, US ## Similar jobs at other companies ### [HVAC Service Technician](https://jobs.opennash.com/companies/comfort-systems-usa/jobs/3dd20c9cb3b3718c8c89/) Comfort Systems USA · Chantilly, VA ### [Sr. HVAC Service Technician](https://jobs.opennash.com/companies/trane-technologies/jobs/e5540117fb41106b0012/) Trane Technologies · Latham, New York, United States of America ### [Sr. Control Service/HVAC Technician -Mechanicsburg, PA](https://jobs.opennash.com/companies/trane-technologies/jobs/2c60d8706569e55991d5/) Trane Technologies · Mechanicsburg, Pennsylvania, United States of America ### [HVAC Technician](https://jobs.opennash.com/companies/cargill/jobs/f0fb93d60a06f4869bc4/) Cargill · Wyalusing, Pennsylvania OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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