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Commercial HVAC Service Technician Level 3

Job in Winchester, Frederick County, Virginia, 22603, USA
Listing for: Comfort Systems USA
Full Time position
Listed on 2026-06-26
Job specializations:
  • Trades / Skilled Labor
    HVAC Tech / Heating Engineer, Maintenance Technician / Mechanic, Installation Technician, Building Maintenance
Job Description & How to Apply Below

Commercial HVAC Service Technician Level 3 — Comfort Systems USA

Join Riddleberger Brothers, Inc. as a Commercial HVAC Service Technician Level 3 and grow as part of our full‑service plumbing, mechanical, HVAC service, controls, and design‑build team. Our main office is located at 6127 South Valley Pike, Mount Crawford, VA 22841. We are a subsidiary of Comfort Systems USA.

Benefits
  • Competitive pay
  • Comprehensive benefits package
  • Apprenticeship opportunities with a pathway to licensure
  • Growth and development opportunities
  • Scholarship program for employees’ children
  • Discounts at major automotive, computer, and cell phone companies
  • Employee referral incentives
  • Company mobile phone and/or tablet, vehicle, and uniforms for certain positions
  • Medical, Dental, Vision, and Life Insurance
  • Short‑Term and Long‑Term Disability Insurance
  • Accidental Death & Dismemberment Insurance
  • Health Care and Dependent Day Care FSAs
  • Health Savings Account (HSA)
  • Employee Assistance Program (EAP)
  • 401(k) Plan with Roth IRA option
  • Pet Insurance
  • Annual Bonus
  • Generous Vacation, Holidays, and Sick Time
Primary Purpose

Service, maintain, and repair most commercial HVAC systems.

Responsibilities
  • Follow and adhere to all company safety requirements and processes.
  • Service, perform maintenance on, and repair the following equipment:
  • Air‑cooled water chillers (reciprocating, scroll, or screw compressors).
  • Water‑cooled DX water chillers (reciprocating, scroll, or screw compressors).
  • Electronic controls integrated with most packaged water chillers.
  • Chilled‑ and hot‑water piping and pumping systems with variable speed drives.
  • Most gas‑fired and electric hot‑water heating systems.
  • Electronic and computer‑controlled digital temperature‑control systems.
  • Electronic variable‑speed drives connected to VAV air handlers and pumps.
  • Packaged, water‑cooled AC units up to 100 tons.
  • Water‑source heat pumps and associated equipment.
  • Computer‑room‑type units with self‑contained humidifiers and controls.
  • Gas‑fired and electric‑heating systems up to 100 tons.
  • Pneumatic, electronic, and modular DDC control systems.
  • Air‑handling equipment including VAV systems.
  • Basic maintenance on atmospheric gas‑fired hot‑water boilers.
  • General maintenance on chilled‑ and hot‑water piping and pumping systems.
  • Direct expansion AC equipment up to 5 tons.
  • Most gas‑fired and electric heating systems up to 5 tons.
  • Low‑voltage (24 V or 1‑10 V) temperature‑control systems.
  • Air‑handling equipment and duct systems.
Other Requirements
  • Broad knowledge of larger commercial HVAC equipment.
  • Understanding of single and three‑phase electrical systems.
  • Ability to travel to job sites and occasionally stay overnight.
  • Valid driver’s license and ability to meet company driver qualification policy.
Education & Experience
  • High school, trade school graduate, or GED.
  • Universal Refrigerant Card and Gas Fitters Card (Type I and Universal).
  • At least five years of commercial experience.
Additional Information
  • Seniority level:
    Mid‑Senior
  • Employment type:

    Full‑time
  • Job function:
    Management and Manufacturing
  • Industries:
    Construction
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