Benefits:

401(k) matching

Competitive salary

Dental insurance

Health insurance

Opportunity for advancement

Training & development

Commercial HVAC Pipefitter / Refrigeration Piping Installer

Winchester Mechanical Location: Nashua, NH / Southern NH & Massachusetts project sites Compensation: $30-50/hour, depending on experience Schedule: Full-time, field-based

Winchester Mechanical is hiring a Commercial HVAC Pipefitter / Refrigeration Piping Installer to support high-quality HVAC installation work across commercial and specialty projects. This is a strong opportunity for someone with 2–5+ years of HVAC piping experience who takes pride in clean work, wants steady commercial projects, and has the potential to grow into a lead role.

Based in Nashua, NH, Winchester Mechanical is a full-service mechanical contractor serving New Hampshire and Massachusetts. The company performs commercial HVAC installation, service, maintenance, design-build, sheet metal fabrication, retrofits, and custom mechanical solutions for customers such as general contractors, property owners, facility managers, restaurants, offices, veterinary hospitals, and other commercial environments.

What You’ll Do • Install refrigerant piping systems for commercial HVAC, VRF/VRV, retrofit, and design-build projects • Run line sets using hard drawn and soft rolled copper • Perform clean, high-quality brazing and piping installation • Read and interpret mechanical drawings, layouts, and installation details • Pressure test, evacuate, and prepare systems for startup • Coordinate with project managers, foremen, technicians, and other trades • Maintain clean, organized, safe, and professional jobsites • Work independently or as part of a crew to meet project schedules • Lead or help lead a small crew when needed • Represent Winchester Mechanical professionally with customers, contractors, and teammates

What We’re Looking For • 2–5+ years of HVAC, mechanical piping, or refrigeration piping experience • Experience installing refrigerant line sets on commercial HVAC systems • Strong copper piping, brazing, layout, and installation skills • Ability to read plans and work with limited supervision • Strong work ethic, attention to detail, and pride in craftsmanship • Team-first attitude with the ability to communicate well on active jobsites • Ability and willingness to take initiative and step into leadership when needed • Valid driver’s license and reliable transportation • OSHA 10 or OSHA 30 • EPA Universal Certification

Preferred • VRF/VRV installation experience • Refrigeration license • A2L certification • Experience on commercial fit-outs, restaurants, offices, healthcare/veterinary, or specialty mechanical projects

Why Join Winchester Mechanical? • Commercial HVAC work with a respected Nashua-based mechanical contractor • Opportunity to work on varied projects, including design-build, retrofits, VRF/VRV, and complex commercial environments • Team-oriented culture with experienced leadership and strong field support • Opportunity to grow into more responsibility for candidates who can lead, solve problems, and deliver quality work • Competitive compensation based on experience, skills, licenses, and fit for the role

Apply Today If you are an HVAC pipefitter or refrigeration piping installer who takes pride in clean, professional work and wants to build a long-term career with a strong commercial HVAC team, we would like to hear from you.