Life at SumZero

Real Work. Real People. Real Purpose.

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At SumZero, we don’t just build high-performance HVAC systems — we build careers with meaning.

When you step onto our team, you’re joining a crew that works hard, looks out for one another, and holds itself to a higher standard. This isn’t just a job. It’s a place where your growth matters, your ideas count, and the people beside you are serious about doing work they’re proud of.

We Show Up With Purpose

Whether it’s a toolbox talk at 6:30 a.m. or a clean install that wraps at 5:00 p.m., our day starts with intention and ends with execution.

We gather often — not just to share updates, but to celebrate wins, align around goals, and stay rooted in our values. That means:

  • Monthly team meetings
  • Summer BBQs and shared meals
  • Recognition ceremonies for teammates who go the extra mile
  • Corporate breakfasts, birthdays, and laughs in the breakroom

We work hard — but we don’t forget to look up, connect, and celebrate along the way.

We Grow People, Not Just Roles

Growth isn’t a buzzword here. It’s a commitment — built into the way we coach, review, and promote from within.

We offer:

  • Weekly check-ins with leaders who care about your goals
  • 1:1 mentorship for both technical and personal development
  • Regular performance reviews that actually mean something
  • Training beyond tools — including leadership, communication, and mindset

Whether you want to lead a crew, design systems, or master your craft — you’ll never be left to figure it out alone.
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You grow. We grow. It’s that simple.‍

Recognition That Reflects the Work You Actually Do

We see the quiet wins — the tough calls, the early starts, the long drives, the one-percent-better days.

And we celebrate them.

  • Hero of the Month: for teammates who show integrity, grit, and care
  • Crew of the Month: for field teams who perform with excellence and unity
  • Public shoutouts, Slack praise, and peer-nominated awards

Because this work is hard. And it deserves to be seen.

A Mission Bigger Than Ourselves

We believe success isn’t just about what you do on the job — it’s about what you build around you.

That’s why we:

  • Sponsor school events like the local Jog-a-Thon
  • Show up in person to cheer kids on
  • Support causes that matter to our teammates and their families

At SumZero, we’re not chasing flashy growth. We’re building a stable, sustainable company that people are proud to work for — and proud to recommend to their neighbors.

Meet the Team

See Open Positions

Core Values
We Actually Follow

Leadership and Mission

What Local Homeowners Are Saying

See how SumZero has helped local homeowners stay comfortable year-round with energy-efficient heat pump solutions.

Over my many years there have been few companies which do everything right with employees who seem committed to making it happen as promised and are a joy to work with. SumZero which sold and installed replacement in and outside equipment for a heat-a/c mini split in our home did everything as and when promised. I was especially impressed with Sarai Kerr with whom I worked prior to the installation arranging Mass Save items and other matters and Paulo Torelli, the technician, who installed the equipment taking great care on a rainy day to do a professional neat and clean installation. Finally, the new inside unit was smaller than what it replaced leaving a small hole where the electrical connection to the old unit had come through the wall. It was pretty small and I’ve patched walls before so could easily do that in this case. Not necessary as Paulo informed me that SumZero would send a repair person to patch the hole. Sure enough a few hours later SumZero called to confirm an appointment in two days. Two days later the hole was patched!
Kenneth Kudisch
Paul really knows his craft. We had some issues with a Bosch HVAC system and he helped solve the issues. Recommend
Jarrod Jordan
Daniel Oliveira & Dan from SumZero Energy Systems arrived promptly, were knowledgeable and courteous. Upon explaining the issue with my AC fan, they immediately understood the problem and addressed it. They exceeded my expectations, explaining what went wrong and how to avoid this issue in the future. Even the initial telephone contact, setting up the appointment, communication, and addressing our specific needs were excellent. I highly recommend SumZero Energy Systems for all your HVAC needs.
Ada Cimpeanu