We offer career opportunities that allow you to be part of a team and grow as an individual.  We strive to work safely and exceed customer expectations!  If you're interested in:

  • Developing your skills
  • Teamwork
  • Providing outstanding Customer Service
  • Safety and Quality

... then a career with Riddleberger Brothers, Inc. may be right for you!

We are a Virginia Apprenticeship Sponsor which provides a path to licensure.


  • Medical Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Short Term Disability Insurance
  • Long Term Disability Insurance
  • Accidental Death & Dismemberment Insurance
  • Health Care and Dependent Day Care FSA's
  • Employee Assistance Program (EAP)
  • 401(k) Plan
  • Vacation
  • Holidays
  • Sick Time
  • Company vehicle
  • Uniforms

Company information:

Corporate office located in Mt. Crawford, VA.

Parent Company - Comfort Systems USA

Full service plumbing, mechanical, HVAC Service, controls and design-build company.

Position Description

Start-up Technician A

Primary Purpose:  Responsible for start up and commission of commercial/industrial HVAC equipment   

• Comply with all safety standards, policies and procedures.

• Service, maintain, start, commission and repair the following types of equipment (not an all-inclusive list):

• Low voltage temperature-control systems generally associated with HVAC equipment

• Direct expansion constant volume, multiple circuited/compressor air conditioning equipment

• Water-cooled AC units up to 100 tons

• Water source heat pumps and associated equipment

Atmospheric gas fired hot water boilers

• Most gas fired and electric heating systems typically found in commercial equipment up to 100 tons

• Chilled and hot water piping and pumping systems and associated equipment

• Computer room type units with self-contained humidifiers and controls

• Non-BAS, pneumatic, electronic, and modular DDC temperature controls generally associated with commercial HVAC equipment 

• Boilers with forced air burners under 200 HP

• Air handling equipment typically found in larger commercial systems

• Air-cooled water chillers equipped with reciprocating, scroll and screw compressors

• Electronic controls incorporated with most packaged water chillers

• Electronic Variable Speed Drives typically connected to VAV air handlers, pumps, towers, etc.

• VAV Systems

Physical Requirements: 

• Must be able to work outside in all weather conditions

• Must be able to lift 75 lbs. and frequently carry 40 lbs. unassisted

• Ability to lift tools, pipe and fixtures overhead

• Ability to work at heights

• Must be able to climb and work on ladders, scaffolding and stairs

• Must be able to stand for long periods of time as well as stoop, kneel and crouch 

• Must be able to use hands to reach for, grasp and manipulate objects

Other Requirements:

• Punctual and regular attendance

• Ability to work on a team and interact with people

• Attend and participate in training as needed

• Working knowledge of Microsoft Office products

• Ability to accurately read a ruler or tape measure

• Valid driver’s license and ability to meet the company driver qualification policy 

• Travel to job sites and occasionally have overnight stays

• Any other duties assigned by the manager/supervisor

• Ability to work 10-hour days, flexible schedule

Apply today and build your future with Riddleberger Brothers, Inc.!

Equal Opportunity Employer, including disabled and veterans.