
Cutting-Edge HVAC Products & Services
Proudly Serving Keene, NH and Surrounding Areas Since 1973

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Our ProductsWe are proud to provide Mitsubishi Electric products.Learn More
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Schedule Service or InstallationIt’s never been easier! Make your request online.Schedule Now
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Visit "The Comfort Zone"Experience true innovation at our showroom!Learn More
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Glowing ReviewsOur customers love our top-quality services.Read Reviews

Our Services
How We Can Help You

Keene & Beyond
We commonly service the following areas:
Get in the Zone—The Comfort Zone
The ductless HVAC units Mitsubishi offers can be a tremendous benefit for homeowners and business owners alike. Ductless mini split systems are the most efficient means to deliver heating and cooling to your home or business. If you're still thinking you should heat and cool your home with a ducted system you are not considering how much energy you are wasting pushing the air through ductwork. Did you know that, on average, 20% of a ducted heating and cooling systems energy use is lost via duct leakage? Ductless systems are virtually silent and only deliver heating and cooling to rooms that are in use, significantly reducing your overall energy use.
There are a lot of technological options associated with ductless units. To put them all on display—and to make it easier for our customers to directly ask questions of our licensed technicians—we’ve created a unique showroom. The HVAC models are on display, and we’re happy to discuss the different options with you.
We call it The Comfort Zone. Of course, it makes your home more comfortable. But you also get the comfort of knowing how your unit works, and that you have the best possible option for your home or business space.
The Comfort Zone is open every weekday from 7 AM to 4 PM at 216 Marlboro Street in Keene. Stop by and see us!

Why Choose Bergeron Mechanical Systems?
What Makes Us Different
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Total Home Comfort - GuaranteedWe are the only area contractor to offer a twelve-year full parts and labor warranty on all new installs!
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We Can Help You Same-DayDon't wait weeks for an appointment. For customers with an active service contract, same-day service is our priority!
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Ask About Our WarrantyTalk to our team about our heating and cooling services warranty!
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100% Satisfaction GuaranteeWe never leave you unhappy! We guarantee it.

Brands & Partnerships

Happy Customers in Your Neighborhood
Reviews & Testimonials
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The installers were professional and explained the whole unit and its operation clearly. Done ahead of schedule.- Michael K.
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First contractor ON TIME, lately.- Paul D.
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I couldn’t be happier with them, how smooth and quickly the installation was completed, and our new Mitsubishi system!- Shauna M.
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Very pleased with our Mitsubishi mini-split heat pump system, and the service contract. Technicians are polite, attentive, thorough, and professional. We purchased from Bergeron because of their reputation, and we have not regretted it.- Brian A.
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Eric and Caleb cleaned and serviced our AC units. They were courteous, thorough, professional, and knowledgeable.- Norma I.
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Ryan and the team at Bergeron did a fantastic job with my HVAC installation.- Cindi M.
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My bills have been cut in half!- Debbie K.
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Kim was extremely helpful in taking the time in reviewing the issues involved with our building, suggesting the appropriate options as well as answering many of my questions.- Jacqueline L.
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Professional, polite, and hard working. An excellent job!- Geraldine G.
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Everyone was professional and extremely helpful making the experience as pain-free as it could possibly have been.- Greg B.
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The installation process was done on time and with great care and courtesy both inside and outside our home.- Dave D.
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The installation was clean, and the system works great.- Timothy W.

Explore Mitsubishi Electric's all-climate heat pump technology. Systems designed for elevated living and lower impact on the environment.
