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Careers at SumZero

More Than a Job. A Mission That Matters.

At SumZero, we’re not just building comfort systems — we’re building something bigger.

Our mission is to lead with transparency the adoption of heat pump technology as a whole-home heating and cooling solution. And we can’t do that without the right people.

That’s where you come in.

Whether you’re in the field, behind the phones, or supporting the install team — your work drives the movement forward. You’re not a cog in the machine here. You’re part of the mission.

Why People Join
(and Stay)

We built SumZero because we believed there was a better way — for customers, and for employees.

We treat people with dignity

We see the human behind the job title. Whether you're answering phones or in the field every day, your voice matters. Respect isn't something you earn here — it's something you're given from day one.

We tell the truth, even when it’s hard

No spin. No sugarcoating. Just honest conversations that build trust — with our customers and with each other. When something’s not working, we talk about it and fix it together.

We grow our people, not just our revenue

This isn’t a stepping stone job — it’s a place to build your future. We train, coach, and promote from within because our biggest investment is you.

Explore Career Paths

Find the role that fits your experience and ambition. From techs to warehouse and office, we’ve got options.

Customer Service Representative
CSR

Be the voice customers remember.

Holliston
Full Time
Service Technician
HVAC

Solve problems. Restore comfort. Grow fast.

Holliston
Full Time
Lead Coordinator
CSR

Drive lead conversion and sales follow-through.

Location
Contract Type
Warehouse Support
WAREHOUSE

Make sure jobs start sharp and finish strong.

Location
Contract Type
Your Growth Path
See how we train, promote, and coach the right people forward.

Pay, Benefits & Stability

You’ll get:

  • Competitive pay + bonus opportunities
  • Health insurance & retirement support
  • Paid training and clear performance reviews
  • Weekly rhythms and structure that support your growth

Culture You Can Feel

We don’t hang values on the wall. We live them.

Our values drive how we show up:

  • We Do What We Say
  • We Care
  • We’re Humbly Confident
  • We Do the Hard Stuff

Think you might belong here?

Questions? Email us directly at careers@sumzeroenergy.com