HVAC Service Technician

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