Marshal Mason
Thornton,CO
Summary
HVAC technician and field leader with a background in residential and commercial service, repair, installation, diagnostics, and preventive maintenance. Led installation crews, supported project completion, and coordinated with customers and office teams to maintain quality, safety, and efficient workflow. Known for clear repair recommendations and dependable job-site execution.
Overview
1
1
Certification
2027
2027
years of professional experience
Work History
HVAC Technician
Supreme
Denver, Colorado
04.2025 - Current
- Diagnosed and repaired residential and commercial HVAC systems to ensure optimal performance.
- Conducted inspections, testing, and preventive maintenance to enhance system reliability and reduce downtime.
- Executed service calls with a focus on safety and efficiency, ensuring customer satisfaction.
- Explained findings and repair recommendations to customers.
Installation Manager
AAARK Total Home Services
Denver, Colorado
08.2023 - 04.2025
- Managed residential HVAC installation operations from scheduling through project completion.
- Coordinated installation crews, equipment, and materials to meet job-site requirements and timelines.
- Supported technicians with technical guidance, troubleshooting, and installation planning.
- Reviewed installations for quality, safety, and code compliance, enhancing customer satisfaction.
- Coordinated with customers, office staff, sales teams, and field personnel to maintain efficient workflow.
- Resolved installation issues, ensuring accurate and timely project completion.
- Supported equipment replacements, system start-ups, testing, and performance verification.
Co-Owner and HVAC Technician
Freedom Comfort Services
Denver, Colorado
08.2020 - 08.2023
- Co-Owned and operated an HVAC services business.
- Managed scheduling, customer communication, field operations, and service delivery to enhance overall operational efficiency.
- Coordinated daily business activities while fostering strong customer relationships to ensure satisfaction and repeat business.
- Performed repairs, installations, maintenance, diagnostics, and system testing.
- Provided technical recommendations, ensuring work was completed safely and professionally to uphold service quality standards.
HVAC Supervisor / HVAC Technician
Top Shelf
Denver, Colorado
01.2020 - 01.2022
- Led HVAC team, providing technical guidance and ensuring quality standards in HVAC work.
- Supervised HVAC technicians and supported quality, safety, and efficient job completion.
- Installed, serviced, repaired, and maintained residential HVAC systems to ensure optimal comfort and efficiency.
- Diagnosed mechanical, electrical, airflow, refrigeration, and performance issues.
- Performed inspections, testing, maintenance, and corrective repairs.
- Enhanced HVAC systems and service operations to improve performance and reliability.
Field Supervisor / HVAC Technician
Dr. Fix It
Denver, Colorado
01.2018 - 01.2020
- Led as Field Supervisor, providing technical leadership and overseeing HVAC field operations.
- Supervised HVAC technicians, ensuring adherence to quality standards and safety protocols for successful job completion.
- Executed residential HVAC service, repairs, maintenance, installations, and inspections to maintain optimal system performance.
- Diagnosed mechanical, electrical, airflow, refrigeration, and equipment-performance issues.
- Delivered refrigerant service and communicated repair recommendations to customers, enhancing their understanding and satisfaction.
HVAC Technician
AAARK
Denver, Colorado
01.2016 - 01.2018
- Diagnosed mechanical, electrical, airflow, refrigeration, and equipment-performance issues to ensure optimal system functionality.
- Completed preventive maintenance, system testing, and troubleshooting to enhance equipment reliability and performance.
- Performed residential HVAC service, repairs, maintenance, installations, and inspections.
- Communicated findings and repair recommendations to customers, ensuring clear understanding and satisfaction with service.
- Followed job-site safety procedures and completed work efficiently and professionally.
Service Technician
Dr. Fix It
Denver, Colorado
2015 - 2016
- Diagnosed,troubleshoot,repair,and maintain residential and light commercial HVAC systems, including furnaces, air conditioners, heat pumps, boilers, and ductless mini-split systems
- Performed repairs with hand tools and power tools, restoring functionality and reliability of HVAC systems.
- Inspected equipment for wear, damage, and safety concerns to maintain operational safety and compliance.
- Diagnosed appliance and system issues during service calls for Dr. Fix It, ensuring timely resolution of customer concerns.
Oilfield Worker
Maximum Safety Oil Filter Services
01.2014 - 01.2015
- Adhered to safety procedures and monitored hazardous conditions while utilizing required PPE to maintain a safe work environment.
- Executed oil filter heating and H2S testing to ensure operational safety.
- Verified job location details to ensure accurate operational planning.
HVAC Technician
AAARK
Denver, Colorado
01.2009 - 01.2014
- Conducted inspections, preventive maintenance, testing, and corrective repairs to ensure optimal performance of HVAC systems.
- Diagnosed and resolved airflow, electrical, mechanical, and refrigeration issues to restore system functionality.
- Installed, serviced, maintained, repaired, and troubleshot residential HVAC systems.
Installation Technician
Colorado Home Comfort
Denver, Colorado
2007 - 2009
- Installed new equipment per manufacturer specifications and customer requirements to enhance system reliability
- Installed HVAC equipment in Colorado Home Comfort customer residences
- Connected ductwork, refrigerant lines, and electrical wiring to ensure optimal system performance
- Tested system operation and verified thermostat function
- Removed old heating and cooling units from job sites to facilitate installation of new equipment
Education
High School Diploma -
Wheat Ridge High School
01-2006
Skills
- HVAC systems
- Installation and Preventive Maintenance
- Diagnostics and Troubleshooting
- Mechanical and Electrical Systems
- Refrigeration and Refrigerant Handling
- Airflow and Performance Testing
- HVAC Project Management
- Team leadership
- Job-Site Safety
- EPA certification
- Master mechanical license
- Service scheduling
- Customer service
Certification
- EPA Section 608 Universal Refrigerant Certification
- NATE Core Certification
- Air Conditioning Service and Installation Certification
- Gas Heating Service and Installation Certification
- ICC F29 Master Mechanical License — Test Passed
- OSHA Safety Training
- H2S Safety Training and Testing
- Hazardous Gas Awareness Training
- PPE and Oilfield Job-Site Safety Training
Timeline
HVAC Technician
Supreme
04.2025 - Current
Installation Manager
AAARK Total Home Services
08.2023 - 04.2025
Co-Owner and HVAC Technician
Freedom Comfort Services
08.2020 - 08.2023
HVAC Supervisor / HVAC Technician
Top Shelf
01.2020 - 01.2022
Field Supervisor / HVAC Technician
Dr. Fix It
01.2018 - 01.2020
HVAC Technician
AAARK
01.2016 - 01.2018
Oilfield Worker
Maximum Safety Oil Filter Services
01.2014 - 01.2015
HVAC Technician
AAARK
01.2009 - 01.2014
Service Technician
Dr. Fix It
2015 - 2016
Installation Technician
Colorado Home Comfort
2007 - 2009
High School Diploma -
Wheat Ridge High School