Air conditioning, Heating, High-Efficiency HVAC
Solutions, and Solar
46°F 
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The Monadnock Region’s First and Only Mitsubishi Electric Ductless HVAC Showroom!
As a family-run business, we’re committed to giving each project and customer the personal care and attention they deserve.
With over 500+ five-star reviews, it’s clear that we go the extra mile to make sure our customers are happy.
As a Mitsubishi Electric Diamond Elite Contractor, we offer top-tier ductless mini-split systems with the added peace of mind of a 12-year parts and labor warranty.
From installations to repairs and maintenance, we offer everything you need to keep your heating, cooling, and air quality systems in shape.
Our “Comfort Zone” showroom lets you experience Mitsubishi Electric’s ductless systems up close before deciding.
We’re passionate about sustainability and do our part by participating in environmentally-friendly initiatives.
Bergeron Mechanical Systems is committed to excellence in workmanship and customer service through our four core principles:
The health and safety of our team members and our customers is always our top priority.
Quality
Our team members are expected to perform at the highest level, using only the best quality materials available.
Delivery
We take fulfilling our mission and commitment to our customers very seriously. We are not satisfied unless you are.
Price
We charge what is required to provide high quality products and workmanship, while being a sustainable, growing business and responsible employer.
If you’re considering upgrading your HVAC system in New Hampshire or Vermont, your Bergeron Mechanical Systems Design Consultant can show you the HVAC rebate and incentive programs available in your area.
Whether for residential or commercial projects, our team provides you with access to help you maximize incentives while upgrading your comfort.
System Type
Estimated Annual Cost
Efficiency Level (*)
$2,713 per year¹
Low – typically 80–85% efficient
$2,164 per year²
Moderate – ranges from 70–95% depending on system age and maintenance
≈ $1,480 per year³
High – up to 300% efficiency (COP 2.5–3.5)
(*) Source: U.S. Energy Information Administration (EIA)
We work with you to determine the most efficient design to meet your comfort needs at a cost that represents a value to you.
Your design consultation is obligation-free and costs you nothing except an hour or so of your time. You’ll have a complete installation proposal, with no hidden costs, in hand before we leave.
Some exclusions may apply. Call for more details.
Saving You Money & the Environment:
High-efficiency systems improve temperature control and air quality, maintaining comfort even in colder climates.
Homeowners in New Hampshire can qualify for rebates and incentives through programs like ENERGY STAR®.
Did you know that 90% of HVAC units are installed incorrectly, wasting energy and making your home less comfortable?
That’s why choosing the right contractor matters! We’re part of the 10% that gets it right every time. When you go with a professional, your HVAC in New Hampshire will be properly installed and running at its best to save you money and keep your home comfy all year.
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.
After more than 50 years of helping...
Choosing between a heat pump and a...
Book your free design consultation now.
No pressure, no hidden costs—just expert guidance tailored to your home.
