HVAC Service Technician

Winchester Mechanical, LLC; Nashua (NH); On-site; USD 60,000 - 80,000; Full time

Job summary

Winchester Mechanical, LLC in Nashua, NH is seeking an experienced HVAC Technician to service, maintain, and repair commercial heating and cooling systems. You will work within a supportive, high-performing team and handle complex, large-scale systems.

This full-time role offers growth opportunities, comprehensive benefits, and ongoing technical training. Expect a standard 7:00 AM–3:30 PM schedule Monday through Friday with occasional overtime or on-call rotation during peak seasons, and the

Qualifications

• 3–5 years of commercial HVAC service experience.
• Strong troubleshooting and blueprint-reading skills.
• EPA & OSHA certification required.
• Valid driver's license with clean record.
• MA Sheet Metal or Refrigeration license preferred.
• Ability to lift 50+ lbs and work at heights.

Responsibilities

• Service, maintain, and repair commercial HVAC systems.
• Diagnose mechanical, electrical, and control issues.
• Wire low-voltage heating and cooling equipment.
• Install and repair refrigerant and gas line connections.
• Pre-measure and determine proper installation materials.
• Complete service/start-up reports and documentation.
• Mentor HVAC apprentices and helpers.
• Participate in ongoing technical training programs.

Skills

HVAC service experience

Troubleshooting

Blueprint reading

Education

EPA certification

OSHA certification

Tools

MA Sheet Metal license

Refrigeration license

Job description

Schedule / Expected Work Hours

Full-time, Monday–Friday, 8-hour shifts.

Schedule / Expected Work Hours

Full-time, Monday–Friday, 8-hour shifts. Typical hours: 7:00 AM – 3:30 PM with occasional overtime or on-call rotation during peak seasons.

Job Summary

Winchester Mechanical, a leading commercial HVAC contractor in Nashua, NH, is seeking an experienced HVAC Technician. You’ll handle service, maintenance, and repair of commercial heating and cooling systems while working in a supportive, high-performing team. This role offers professional growth, strong benefits, and the chance to work on complex, large-scale systems.

Responsibilities

• Service, maintain, and repair commercial HVAC systems
• Diagnose mechanical, electrical, and control issues
• Wire low-voltage heating and cooling equipment
• Install and repair refrigerant and gas line connections
• Pre-measure and determine proper installation materials
• Complete service/start-up reports and documentation
• Mentor HVAC apprentices and helpers
• Participate in ongoing technical training programs

Qualifications

• 3–5 years of commercial HVAC service experience
• Strong troubleshooting and blueprint-reading skills
• EPA & OSHA certification required
• Valid driver’s license with clean record
• Preferred: MA Sheet Metal or Refrigeration license
• Ability to lift 50+ lbs and safely work at heights