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Keep Systems Running.

Keep Customers Comfortable. Grow Your Career.

As a Service Technician at SumZero, you’ll be more than a repair person — you’ll be a trusted problem solver, comfort advisor, and technician customers count on.

What You’ll Do

You’ll be the face of SumZero for many homeowners. When things go wrong, you’ll show up with clarity, tools, and confidence — and leave people better than you found them.

Typical Day Might Include:

  • Reporting issues or install feedback to the office team
  • Diagnosing and repairing ductless and ducted heat pump systems
  • Running seasonal service appointments for Comfort Club members
  • Commissioning new systems at the end of install projects
  • Answering customer questions with honesty and patience

Hours: 6:30AM – 3:30PM (some flexibility depending on schedule)
Location: Based in Holliston, MA
service area spans Metrowest + Greater Boston
Start Date: As soon as you’re ready

What’s In It for You

  • $XX,000–$XX,000 base pay, plus bonuses
  • On-call stipend + overtime opportunities
  • Paid training and licensing
  • Company van, uniform, and tools provided
  • Health, dental, and retirement benefits
  • Quarterly reviews and raise opportunities
  • A team that backs you up — every time

“There’s no egos here. You do great work, they notice. You need help, someone shows up.”
Maurice D., Service Manager

What We’re Looking For


If you’re:

  • Technically skilled with a solid HVAC service foundation
  • Comfortable using tools and tablets
  • Great with customers — patient, professional, and clear
  • Organized, efficient, and reliable
  • Looking for long-term growth and leadership potential ...you’re our kind of technician.

Real Reviews from Customers

(and Why CSRs Matter)

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See how we train, promote, and coach the right people forward.

No pressure. Just possibilities.

We review every application personally. You’ll hear back from us within 3 business days.

Questions? Email us directly at careers@sumzeroenergy.com