Control Technologies, Inc. (CTI) is one of the largest and independent building systems integrators in the northeast, serving both New England and New York city. 

For over 30 years, building managers and owners across the Northeast have trusted Control Technologies (CTI) to provide quality, state-of-the-art building controls, and management solutions to meet their facility’s unique needs.

We are seeking inspired individuals to join our team. Our company hosts locations in Vermont, New Hampshire, Massachusetts, and New York City. We place a high level of trust in our employees and prioritize investing in their growth and success. Investment in our employees makes a difference in helping us reach our goals with opportunities and challenges that lie ahead.

About the Role

We’re looking for an experienced Field Service Technician to support, maintain, and troubleshoot HVAC and building automation systems throughout New Hampshire. This role is perfect for a technician who enjoys hands-on work, problem-solving, and customer interaction — and who’s looking to grow into more advanced commercial and controls-based work.

Whether your background is residential or commercial, mechanical or controls, we’ll meet you where you are and provide training to expand your skillset.

To ensure efficient response times and reasonable travel, the ideal candidate will live in or near one of the following areas: Concord, NH Manchester, NH Nashua, NH

Major perk:
On-call rotation only 3-4 times a year (far lighter than industry norms)

What You’ll Do

HVAC & Mechanical Service

• Perform service, troubleshooting, and preventive maintenance on all types of Boilers, RTU’s, MAU’s, Water Heaters, Air Handlers, and HVAC systems.
• Diagnose mechanical and electrical issues and make reliable repairs
• Complete clear service documentation and reports

Controls & Software (Training Provided)

• Commission and support HVAC control systems and related software
• Review alarms, trends, and system data to optimize performance
• Assist with system configuration, updates, and troubleshooting

Customer Support

• Provide professional on-site and remote customer service
• Communicate findings, recommendations, and next steps clearly
• Build strong, long-term customer relationships

What We’re Looking For

• 3–5+ years of experience in HVAC, mechanical, or related field
• Residential technicians encouraged to apply — commercial transition supported
• Experience with oil, gas, or AC systems (training available in these areas)
• Ability to interpret mechanical, electrical, and control schematics
• Comfortable using diagnostic tools, software, and field instrumentation
• Strong communication skills and a professional, customer-focused approach
• Valid driver’s license and ability to travel to various job sites

Why Join Us

• Extremely light on-call rotation (~1x every 15 weeks)
• Competitive pay and benefits, including:
  • Over 70% company-paid health insurance
  • 401(k) with company contribution after 6 months
  • Company-paid $50,000 life insurance
• Annual uniform allowance for service and construction employees
• Full safety gear provided — safety is a top priority
• Training and development across controls, oil, gas, and AC systems
• A supportive team culture with regular local team events and strong field leadership

Why You Should Apply

For over 30 years, Control Technologies, Inc. has built its success as an industry leader in building automation solutions and services. We pride ourselves in delivering truly Open Systems. Here, you will experience exciting opportunities with competitive benefits. We look forward to you joining our award-winning team.

Equal Opportunity Employer

Control Technologies, Inc. is an Equal Opportunity, Affirmative Action, and E-Verify Employer encouraging diversity in the workplace.

Control Technologies, Inc. does not discriminate based on race, color, religion, national origin, age, sex, sexual orientation, veteran status, genetic information, family medical history, disability, or other characteristics which are or may be protected by law. We urge qualified minorities and women to apply.