Find Jobs
Find Jobs Near You – Available Work in Your Location
Skip to job details
TM
Timberline Mechanical Systems
Senior HVAC Commercial Service Technician
Career Insights for HVAC Mechanic / Installer
See where this job fits in the broader career landscape. Knowing your career path helps you see what's possible from here.
Scorecard
Based on Colorado data
Review key factors to help you decide if this role fits your goals. How is this calculated?
What they do
A HVAC Mechanic or Installer installs and repairs heating, air conditioning, and ventilation units.
$55,645 / year median in Colorado
+7% projected growth
Job Description
Company Overview Timberline Mechanical is a trusted HVAC and plumbing service contractor serving the Colorado Front Range. Since 2003, we have specialized in commercial and industrial HVAC, refrigeration, preventive maintenance, and 24/7 plumbing services, delivering reliable solutions that keep building systems operating efficiently. As a Modigent company since 2022, we combine local expertise with the resources and growth opportunities of a national platform. Job Overview Service Technician III As a Service Technician III, you'll operate as a senior/journeyman-level expert, independently handling complex commercial HVAC service calls, advanced diagnostics, repairs, maintenance, and system startups across a wide range of equipment in buildings, hospitals, schools, industrial facilities, and more. Lead service efforts on challenging jobs, mentor junior technicians, and deliver high-reliability solutions that ensure code compliance, energy efficiency, and outstanding customer satisfaction. Our people-first culture empowers your mastery with specialized training, certifications, leadership opportunities, and the fulfillment of keeping critical commercial systems running safely and sustainably nationwide. Duties and Responsibilities Independently diagnose, troubleshoot, repair, and maintain complex commercial HVAC systems, including rooftop units, split systems, chillers, boilers, VAV boxes, air handlers, central plants, controls/DDC, large-tonnage equipment, and both wet-side (hydronic) and dry-side (air-side) applications. Perform advanced repairs such as major component replacements (compressors, evaporators, condensers, controls, valves, pumps), refrigerant recovery/recharge/handling, system balancing, startup/commissioning, and retrofits/upgrades. Conduct thorough preventive maintenance, performance testing, energy-efficiency assessments, leak detection, and system optimization to minimize downtime and extend equipment life. Lead full service calls from dispatch to completion: assess on-site issues, communicate clearly with customers on findings/recommendations/solutions, coordinate parts and materials, execute work, and follow up for satisfaction. Ensure all work complies with codes, regulations, manufacturer specifications, EPA requirements, and Modigent safety/quality standards. Document service activities in detail (work orders, reports, photos, as-builts, recommendations) and maintain accurate records for billing, warranty, and continuous improvement. Mentor and guide Service Technician I and II team members by demonstrating techniques, sharing best practices, supporting on-the-job learning, and promoting safety and quality standards. Supervisory Responsibilities Yes - Provides coaching, mentoring, and technical guidance to junior Service Technicians (Levels I and II); may lead small service teams or coordinate with subcontractors on complex calls, ensuring alignment with safety, quality, and customer expectations.