

"The team from Bergeron Mechanical were fantastic from the moment I reached out to them. Professional, skilled, and detailed. Their level of communication kept me informed and up to date throughout the whole project."
Jean-Pierre Bernier
"The Bergeron team is amazing. During COVID they took precautions that made me feel completely safe while they were in my home. Their work is impeccable. They make sure that you are receiving quality products and services."
Kathryn Berta
"The team at KEBMS combines state of the art technical know how with an attentive customer focused approach. I'm building my own home. KEBMS was easily the best sub-contractor on the entire project."
Tony Diehl
Many of our systems are ENERGY STAR qualified and may be eligible for federal and state tax credits or local utility rebates.
We actively participate in LEED certified projects




As a Mitsubishi Diamond Elite Dealer, All Systems We Sell Come Backed With a 12 Year Warranty
Finance Your Project
We offer financing options through the Credit for Comfort program.
Call us at 603-563-8305 if you have any questions.

HVAC Installation, AC Installation & Air Conditioning Repair
Swanzey, NH, Keene, NH & Chesterfield, NH
As a second generation family company, K. E. Bergeron Mechanical Systems, LLC provides superior value throughout Keene, NH and surrounding areas. You’ve probably seen our service trucks in your area. We handle the full range of industrial, commercial, and residential HVAC requirements, from new installation to upgrades, seasonal maintenance, and repair. For every job, we uphold uncompromising levels of professionalism and quality. We’re simply not satisfied unless you are.
Dependable Heating & Cooling Services From An Expert Team!
Contact us at 603-563-8305 for a prompt response. We take advantage of new digital dispatch software to avoid delays. Our team of EPA certified, Natural/LP gas licensed, highly trained and experienced technicians are prepared for any challenge across Keene, Swanzey, Chesterfield, Walpole, Peterborough, NH, and Southern Vermont. As a Mitsubishi Diamond Elite Dealer, we are leaders in ductless split design and implementation, and we specialize in Indoor Air Quality.
Give our team a call for all your HVAC repairs, maintenance & installations in Keene, Swanzey, Chesterfield, Walpole, Peterborough, NH, and Southern Vermont!
At K. E. Bergeron Mechanical Systems, LLC, we deliver exceptional return from your investment through a job done right. No corners get cut, no details overlooked. We obtain building permits for all work. Give us a call at 603-563-8305. No Problems, Just Solutions!
Air Conditioning Repair & HVAC Installation in Swanzey, NH