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

Winchester Mechanical

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