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
We visit your home in Swanzey to understand your comfort needs and design the right system for your space.We visit your home in Swanzey to understand your comfort needs and design the right system for your space.Room-by-room measurements and assessment completed on-siteSingle-zone and multi-zone options reviewed for your homePermitting handled by Bergeron Mechanical from start to finishDetailed written proposal provided — no obligation, no cost
From the moment we arrive, we work cleanly and respectfully throughout your home.From the moment we arrive, we work cleanly and respectfully throughout your home.All installation work meets Mitsubishi Electric Diamond Elite Contractor requirementsLine sets carefully routed to preserve your home's appearanceWe don't leave until you're fully comfortable operating your new system
Handoff & Ongoing Support
We take the time to make sure you know your system inside and out before we go.We take the time to make sure you know your system inside and out before we go.Complete system orientation so you know exactly how everything worksWe stay until every question is addressedWe take care of the cleanup, so your space is left exactly as we found itMaintenance services are available, and support is accessible whenever you need it



Diamond Elite Contractor is the highest tier in Mitsubishi Electric's contractor certification program, and it is not self-declared. Bergeron Mechanical Systems earned this status by meeting strict requirements set by Mitsubishi Electric, and by consistently delivering on them.Diamond Elite Contractor is the highest tier in Mitsubishi Electric's contractor certification program, and it is not self-declared. Bergeron Mechanical Systems earned this status by meeting strict requirements set by Mitsubishi Electric, and by consistently delivering on them.Recognized as a Top Contractor nationwide by Mitsubishi ElectricAdvanced factory training ensures systems are designed and installed according to manufacturer specificationsCorrect sizing, placement, and installation determine how a system performs for years to come, and that is where Diamond Elite training makes the differenceStatus is maintained through ongoing performance across training, installation volume, and customer satisfaction
Since 1973, Bergeron Mechanical Systems has built its reputation one home at a time. As a family-owned and operated contractor, we treat every project with the care and attention it deserves.Since 1973, Bergeron Mechanical Systems has built its reputation one home at a time. As a family-owned and operated contractor, we treat every project with the care and attention it deserves.Built on four core values: safety, quality, delivery, and price 600+ five-star reviews reflecting a consistent record of quality workWe take the time to explain the process clearly, so homeowners feel confident at every stepFamily ownership means accountability that goes beyond a single transaction
Many homeowners run a furnace in winter and window units in summer, two separate systems, two separate maintenance routines. A Mitsubishi Electric mini-split replaces both with a single installed system that works year-round.Many homeowners run a furnace in winter and window units in summer, two separate systems, two separate maintenance routines. A Mitsubishi Electric mini-split replaces both with a single installed system that works year-round.One outdoor unit, one system, heating and cooling coveredDesigned for high-efficiency performance and reduced energy usage in every seasonMitsubishi Electric also offers cold-climate heat pumps built for optimal performance even when temperatures drop
Every installation includes a 12-year warranty on all Mitsubishi Electric components. All jobs also come with 1-year bumper-to-bumper warranty coverage of all parts and labor.
Steve
Bergeron Mechanical Systems was recommended by a friend for their installations of heat pump systems. Once we reached out to them, every aspect of our experience was just as described. They responded immediately to our inquiry, sent someone to meet with us within a few days and installed a unit about a week after. We […]
Anne
What a delightful, competent, and respectful team! Great experience from soup to nuts and John even solved a puzzle about why the electrical system is set up the way it is in my 1935 cottage. Bravo!
John
I can not thank Bergeron Mechanical and their team enough for the design and installation of a Mitsubishi Electric air handling system in my home:Eric on the design, Evan, Jay and Pete on the installation. This team travelled to Northern NH to get this job done. The whole company bleeds professionalism. They are beyond exceptional. […]
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