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Mini Split Installation

Home
Heat Pump
Mini Split System

The Smarter Way to Heat and Cool—Without Ducts

Need powerful, room-by-room comfort without ripping up walls or installing ductwork? Our expert mini split installation services bring you a seamless, energy-efficient solution that works year-round in Massachusetts.

We install mini split heat pump systems that keep you comfortable through sweltering summers and icy winters—with rebates, quiet performance, and flexible zone control.

Why Choose a Ductless Mini Split System?

Whether you're renovating, finishing a basement, or looking for targeted comfort without the cost of central AC, a ductless mini split system gives you:

  • Flexible zoning – control temps room by room
  • No ducts, no mess – ideal for older homes or additions
  • Quick, clean installs – most done in a day
  • Big savings – qualify for Mass Save® rebates and federal tax credits
  • ‍All-season comfort – with built-in heat pump technology

How We Install Mini Split Systems That Work for You

Expert Design + Precision Installation

We don’t just install mini split units—we design them for performance. Our team considers layout, sun exposure, and usage patterns to ensure every zone delivers the comfort you expect.

We Specialize in Mitsubishi Mini Split Solutions

As certified Mitsubishi Electric partners, we install the industry’s most trusted equipment. A Mitsubishi mini split is durable, reliable, and engineered for New England weather—with performance down to -13°F.

Energy Star Mini Split Systems That Save

Every ENERGY STAR mini split we install meets strict energy efficiency guidelines—translating into lower monthly bills, less environmental impact, and eligibility for maximum incentives.

Related Services

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Mini-Split Applications
Mini-Split Ductless
Mini-Split Ducted
Mini-Split Mixed

What Local Homeowners Are Saying

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

Paul was super knowledgeable when he came to give us a quote, and both he and Sarai were always quick in communicating. It didn't take long for us to get on the schedule and they handled everything with MassSave which took a lot of work off our shoulders. The installation team did a fantastic job, were very efficient and tidy, and we finally have some relief from this summer heat. Would absolutely recommend.
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Julie Garey
The first word that comes to mind is OUTSTANDING when I think about SumZero. My husband and I just bought a home with a very old HVAC system and knew we needed an update. The first thing we did was speak with Sarai Ortiz who explained to us all of the steps we needed to take in order to see what system was best for us. She was very helpful and followed up with us throughout the entire process. Hearing that we needed a new system, David Sampaio promptly came to our house to give us a quote on what system he thought was best. My husband loved what he presented and did not hesitate to take the offer. Since we did not have the expenses for the system at hand, Sarai walked us through getting a heat loan through Mass Save. This process was so easy and the loan was finalized within a week! We were so excited to get things rolling, but of course things were on hold due to the pandemic. Even though we had to wait a couple more weeks than anticipated, Sarai and David kept us in the know and answered every question that we had. Once the time came to have the new system, SumZero was more than happy to make us a priority! The workers were on time, efficient, and very kind. Not once did I worry or question the quality of work they were doing. After two days, the work was complete! Daniel was able to walk me through what was installed and how to use the new thermostat, which we love! We now have a home that is comfortable to live in no matter the season. If you’re looking for a new HVAC system, SumZero is the one to call!
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Danielle Montepeque
SumZero team did an Amazing job, I got my new HVAC system installed on time and very professionally, they did a vent installation through my atic that other companies refused to even try. The savings I am getting and comfort at home are awesome, I highly recommend these guys!
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Jorge Garcia

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Let our experts design the right heating and cooling solution—customized for your comfort, your layout, and your energy goals. No pressure. Just clarity.

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