AC Installation & Replacement

AC Installation & Replacement in Keene

Experienced HVAC Company Serving Cheshire, Grafton & Windsor Counties

A well-functioning air conditioning system is essential for a home's comfort and optimal indoor air quality. AC installations require careful consideration and professional expertise to ensure efficient cooling, energy savings, and long-term performance. Bergeron Mechanical Systems is your trusted partner in achieving a seamless installation process. When you choose us, you choose excellence in every process step. 

Contact us online or by calling (603) 733-4594 today to discuss your Keene AC installation and replacement needs. Your comfort is our priority.

Areas We Serve

Bergeron Mechanical Systems is proud to serve Keene, New Hampshire and surrounding areas.

  • Cheshire County
  • Grafton County
  • Keene
  • New Hampshire
  • Peterborough
  • Sullivan County

Benefits of Working with Our Expert Team

What We’re All About

Serving Keene, NH Since 1973

  • Total Home Comfort - Guaranteed
    We are the only area contractor to offer a twelve-year full parts and labor warranty on all new installs!
  • We Can Help You Same-Day
    Don't wait weeks for an appointment. For customers with an active service contract, same-day service is our priority!
  • Ask About Our Warranty
    Talk to our team about our heating and cooling services warranty!
  • 100% Satisfaction Guarantee
    We never leave you unhappy! We guarantee it.

The Importance of Proper AC Installation & Replacement

Investing in a new AC system or replacing an existing one is a significant decision that has a far-reaching impact on every aspect of daily life. A meticulously designed and expertly installed AC system provides many benefits beyond just cooling living spaces.

The benefits of a properly designed and installed AC include:

  • Energy efficiency – A well-designed AC system is tailored to a home's specific cooling needs, ensuring efficient operation and reduced energy consumption.
  • Optimal performance – Proper installation guarantees that an AC system operates at peak performance, providing consistent cooling throughout a home.
  • Longevity – When installed correctly, an AC system is more likely to have a longer lifespan, reducing the need for frequent replacements and repairs.
  • Indoor air quality – A professionally installed AC system helps maintain healthy indoor air quality by removing pollutants and allergens.
  • Cost savings – A properly installed AC system saves money on utility bills and maintenance expenses by minimizing energy waste and avoiding potential breakdowns.
For All New Mitsubishi Electric Installations We Are Proud to Offer a Full, 12-Year Parts & Labor Warranty
The ONLY 12/12/12 Total Home Comfort Guarantee in the Area!
Warranty Details

AC Size Matters

The size of your AC system plays a crucial role in its performance and energy efficiency. An AC system that is too large can lead to frequent on-and-off cycles, resulting in wasted energy and inconsistent cooling. On the other hand, an undersized system will need help to meet the cooling needs, leading to discomfort. Our experienced professionals thoroughly assess the home to accurately determine the appropriate AC system size. This tailored approach ensures optimal cooling efficiency and consistent comfort.

AC Features & Technology for Optimal Comfort

Today's AC systems come equipped with an array of advanced features and cutting-edge technology designed to enhance comfort and energy efficiency. Programmable thermostats allow residents to set specific cooling schedules, optimizing energy usage based on their daily routines. Smart controls enable remote access and customization through a smartphone or other device, giving unparalleled control over a home's climate. Our experts can help navigate these technological advancements, ensuring homeowners select an AC system that aligns with their preferences and lifestyle.

At Bergeron Mechanical Systems, our commitment to excellence extends beyond installation and replacement; we're dedicated to helping you make informed choices that optimize your home's comfort, energy efficiency, and overall well-being. 

Contact our Keene AC installation and replacement experts at or online to begin selecting the perfect system for your residence.

Experience Bergeron Mechanical Systems

Testimonials from the team

Hear what our employees and partners have to say about working with Bergeron Mechanical Systems!

Getting Started Is Simple!

Contact Us Today

Use the form below, give us a call at (603) 733-4594, or visit our interactive showroom at 216 Marlboro Street in Keene!

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Our Reputation Speaks for Itself

Read Our Reviews

At Bergeron Mechanical Systems, your satisfaction is our priority! See for yourself what our customers have to say about working with us.

    "Professional Across the Board"
    Their design was innovative and minimized the visibility of ductwork when compared to a competitor's proposal.
    - Ivy B.
    "5 Stars!"
    The installation process was done on time and with great care and courtesy both inside and outside our home.
    - Dave D.
    "Highly Recommend!"
    The installers were professional and explained the whole unit and its operation clearly. Done ahead of schedule.
    - Michael K.
    "Very Happy Customer!"
    Ryan and the team at Bergeron did a fantastic job with my HVAC installation.
    - Cindi M.
    "Fantastic Service!"
    My initial meeting covered every aspect of what they do, what I needed, and my options at completion.
    - Dawn B.
    "Proud Employee and Customer"
    This is the best company I have ever worked for! I am not only an employee, but an incredibly satisfied customer as well.
    - Thomas H.
    "Informative and Diligent!"
    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.
    "Returning Customer for 23 Years"
    I have been using KEBMS for all my heating, ventilation, and air conditioning needs since I relocated to NH 23 years ago. Five years ago I paid for them to install a Mitsubishi heat pump. I have saved money on my heating and cooling costs.
    - Barbara M.