For Henniker, NH homeowners looking to reduce their dependence on propane and oil, a Mitsubishi Electric mini-split brings comfort to every room and runs all year long. As a Mitsubishi Electric Elite Diamond Contractor, Bergeron Mechanical Systems designs and installs each system to suit the home.
From village homes to properties on larger rural lots, we work across Merrimack County and plan every installation around how your home is laid out.
24/7 support
Fully licensed & Insured
Fully guaranteed
Trusted technicians
Upfront pricing
No surprise fees
24/7 support
Fully licensed & Insured
Fully guaranteed
Trusted technicians
Upfront pricing
No surprise fees
From planning to a finished system, Bergeron Mechanical Systems manages your entire mini-split installation.
It opens with a Free Design Consultation in your home, where the goal is simple: understand your space well enough to design the right system for it. We check the existing setup, measure each room, and base the load calculations on how your home is built. Then we walk through the Mitsubishi Electric options and leave you with a Free Estimate.
Installation is handled entirely by our technicians, who treat your home with care from the first step to the last. They don't sign off until the system has been tested and is running as it was designed to. Before they go, you'll know exactly how to operate it, and your home will be left clean.
Ongoing Support
You'll have a team behind you long after installation wraps up. Bergeron Mechanical Systems supports the systems we install, so when a question or a service need comes up, you're talking to the people who already know your setup. We're here to help your system keep doing its job for years.



Bergeron Mechanical Systems carries Mitsubishi Electric's Elite Diamond Contractor status, the top tier of the manufacturer's certification. Our team stays current through ongoing factory training and follows Mitsubishi Electric's installation practices closely. The result is a system set up to perform the way it was designed to, backed by a 12-year parts-and-labor warranty on all Mitsubishi Electric related components.
Over 50 years as a family-owned business has given Bergeron Mechanical Systems a long history with homeowners across New Hampshire and Vermont. The people who handle your installation are part of that same team, and they'll be here if you need them later.
Whatever the season, a Mitsubishi Electric system keeps your home comfortable from a single setup, heating when it's cold and cooling when it's warm. It adjusts to demand in real time, so you get steady comfort and efficient operation all year.
Mitsubishi Electric covers the parts on your system, and the labor is on us at Bergeron Mechanical. Together, that's a 12-year parts-and-labor warranty on all Mitsubishi Electric related components.
Carolyn M.
John, Pete and Adam did an excellent installation this morning of the Mitsubishi Minisplit. 4 hours start to finish attention’s to detail, good explanations and highest level of professionalism.
Melissa H.
Highly recommended for heat pumps. From initial meeting with Monique we were given information and advice to get the best option for us. The installation team of John, Mitchell, Nils, and Lincoln were efficient and professional. They took care in our home and were friendly and helpful.
Christina L.
The Bergeron team showed up to install mini-splits at our house. What a great team. They were very pleasant, helpful efficient, and we highly recommend their services. In particular, I want to call out Lincoln, Adam, Mitchell, Justin, John, Nils, and Peter. Thank you! See you next time.
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