A Family Owned & Operated HVAC Dealer You Can Trust
No Problems, Just Solutions

Contact Us Today

A Family Owned & Operated HVAC Dealer You Can Trust
No Problems, Just Solutions

Contact Us Today

Spring HVAC & Plumbing Promotions

Sensor Systems for Your Home or Business

K. E. Bergeron Mechanical Systems, LLC happily provides special monitoring systems from Alert Labs to protect your home or commercial property. The Sentree A/C monitoring system, Sumpie sump pump sensor, and the Floodie & Flowie water flood and flow sensor protect your home, help reduce service calls, and save you money on your energy and repair bills. With these systems, you’ll be able to monitor for issues before failure.

Sentree Special Offer


Installation including first years monitoring.


Installation for existing customers.

Call 603-563-8305 for details!

Learn More


Sump Pump Sensor

Measures water levels and monitors performance to help you avoid home flooding, and will alert you when maintenance is necessary.

Floodie & Flowie

Water Flood & Flow Sensor

The Floodie detects leaks and floods early, so you can protect your home or commercial property against extensive water damage, while the Flowie works on monitoring water flow 24/7.


A/C Monitoring System

Analyzes air conditioner performance and alerts you to any issues so you can be proactive instead of reactive.

K.E. Bergeron Truck

Heating Installation, HVAC Service & AC Service
Swanzey, NH, Keene, NH & Chesterfield, NH

As a second generation family company, K. E. Bergeron Mechanical Systems, LLC continues to provide superior value throughout Keene, NH and surrounding areas. You’ve probably seen our service trucks in your area. We handle a 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 K. E. Bergeron Mechanical Systems, LLC at 603-563-8305 for 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 further specialize in Indoor Air Quality.

Give our team a call for all your HVAC repairs, maintenance & installations!

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!

AC InstallationFurnace ReplacementHeating Installation