Whether your Hartford, VT home is long established or newly built, a Mitsubishi Electric mini-split delivers heating and cooling in one year-round system. Bergeron Mechanical Systems brings Mitsubishi Electric Elite Diamond Contractor expertise to every installation across the Upper Valley.
We help homeowners understand the rebate options that may be available to offset installation expenses, and back each system with a 12-year parts-and-labor warranty on all Mitsubishi Electric related components.
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
Bergeron Mechanical Systems sees your mini-split through from the design stage to a completed installation.
Before any work is planned, we visit your home for a Free Design Consultation. We look at insulation, layout, and how the rooms perform, and we measure heat loss so the design is based on your home rather than a generic chart. You'll see exactly which Mitsubishi Electric system we recommend and why, along with a Free Estimate.
Throughout your installation, our technicians work carefully to protect your home from start to finish. The system gets a full test before they consider the work complete, and they'll take you through how to use it day to day. Your space is left clean when they're done.
Ongoing System Support
When the job's done, we're still a part of it. Bergeron Mechanical Systems backs the systems we install with ongoing support, so if anything needs attention later, you've got people who already understand your system. Sticking with you over the life of the system is how we like to work.



Reaching Mitsubishi Electric's Diamond Elite tier takes more than signing up. Bergeron Mechanical Systems earned the Mitsubishi Electric Elite Diamond Contractor designation through ongoing factory training and a proven record of installation quality, and holds it by keeping that work consistent. For your home, that means an installation done to the manufacturer's standards, with Mitsubishi Electric's technical team available to us directly.
Bergeron Mechanical Systems has served New Hampshire and Vermont homeowners as a family business for over five decades. That longevity says something simple: the company has earned its place here, and it plans to keep it.
One Mitsubishi Electric system replaces both heating and cooling equipment, working efficiently across the whole year. Its inverter technology adjusts to demand as it changes, so each room stays comfortable while energy use stays efficient.
Your warranty splits cleanly in two: Mitsubishi Electric on the parts, Bergeron Mechanical on the labor. The two combine into 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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No pressure, no hidden costs—just expert guidance tailored to your home.