About Us Who Is Hassler Heating and AC?

Hassler Heating and Air Conditioning, Inc. provides exceptional residential heating and cooling services with a focus on improving your home's energy efficiency. Each and every member of the Hassler team is dedicated to improving your home comfort and decreasing your energy costs, all with minimal interruption to your home life.

Californians Helping Californians

If you are going to entrust an HVAC contractor with your  indoor comfort here in the East Bay, shouldn’t they know a little bit about what it's like to actually live here? We are a company of Californians looking to help our friends, neighbors, and family to live more comfortably in the Northern California climate, while doing everything we can to reduce your energy costs. But you don't have to take our word for it! See what other homeowners are saying about Hassler.

Plus, many of our services can improve your indoor air quality,  like air sealing, air purifier installation, and even mini split installation. Experience the Hassler Difference today!

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Your Home is an Interconnected System

We provide heating and cooling services in Alameda, Contra Costa, and Marin counties, with a particular focus on those homes with special heating and cooling requirements. Our HVAC services are geared toward improving the indoor environment of your entire house, which requires looking at your whole home as a series of interconnected systems. Changes in one part of your home can affect the comfort and efficiency of multiple areas, and the Hassler team leaves no stone unturned until we can find the right solution for your comfort and energy goals. 

We are aware that many homes’ original architectural structure will not accommodate the easy-install, pre-fab systems that many HVAC companies use. Whatever your home comfort needs are, Hassler uses equipment and materials above industry standards including energy-efficient options in our installations of heating and cooling systems. Additionally, we install and repair, programmable thermostats, filtration systems, heat pumps, ductless split systems, ducting, water heaters, humidifiers, and more

Whether we are retrofitting old systems or tackling a remodeling project, Hassler will create a custom system that is visually and aesthetically matched to your home, giving you state-of-the-art technology (such as high efficiency systems that can be separated into comfort zones) with a pleasing look and feel. 

Contact us and learn how our experienced team can increase the comfort of your home.

The Hassler Difference

Hassler knows that getting the job done right today will lead to customers being our biggest advocates tomorrow.
  • Exceeding Expectations

    Our philosophy on customer service is to not only meet expectations but to exceed them. Whether it is your home heating and cooling, improving your indoor air quality, or scheduling a home energy assessment, we are committed to over-delivering throughout your entire journey with Hassler.

  • Leadership
    From our newest team member on up to our leadership and ownership, we are committed to producing the highest level of workmanship - all in an efficient manner. We accomplish this through better training, education, planning, and leadership across all the products and services we provide.
  • Accountability

    We are committed to holding ourselves and each other accountable to integrity, customer satisfaction, and peak performance. We are unwavering in our commitment to not only talk about the solution, but to be a part of it.

  • Lasting Relationships
    Developing long lasting relationships is at the core of our organization. When interacting with a customer or team member, we are committed to building mutual trust and respect. Our reputation is the foundation of the company, and at the end of the day, our word is all we have!
  • Growth

    Through a dedication to training, education and leadership, we will continue to grow to remain the leading HVAC and home performance company in Contra Costa, Alameda, and Marin counties. We are continually honing our craft and challenging ourselves to improve who we are as an organization for what we can become.

  • Go Green
    We care deeply about the changing climate here in California, and want to help other Californians reduce their impact on the environment. Hassler places an emphasis on embracing “Green” technologies and processes whenever possible, and reducing energy use.
    "Professional, efficient and responsive."
    “We highly recommend Hassler Heating and AC. Three years ago, we updated our system with a heat pump. The installers were professional, efficient and responsive.”
    - Diane M.
    "The company provided great service."
    “He quickly identified the problem, took time to explain it, answered my questions and got everything in working order under 2 hours that even included a trip back to El Cerrito to get the right part. He was very courteous and respectful.”
    - Veronica A.
    "He had us up and running very quickly."
    “He had us up and running very quickly and also was able to make some other recommendations for service and maintenance. He was great, and I will continue to use him and his team for maintenance and repairs.”
    - Scott L.
    "I am so thankful."
    “Hassler Heating went above and beyond customer service! My AC unit started smoking and I called to make an appointment and they were able to fit me into their schedule that day!”
    - Emily V.
    "I also want to commend your work crew."
    “They were very efficient as well as pleasant in their interaction with me. They did such a good job that my next-door neighbor, after watching them at work, told me that he has decided to hire your firm to install a new heating system for his house.”
    - Marilyn B.
    "Very knowledgable."
    “Chris just came out and inspected a furnace and ducting for me at a property that clients of mine are purchasing in El Cerrito. He was very knowledgable and was sure to take the time to answer all of my questions thoroughly.”
    - Jeffery S.
    "We have full confidence."
    “We have full confidence that we now have a first class heating system that will serve us well in the years to come. We know in the future we will need to replace our roof mounted air conditioner, and we will confidently call on Hassler to do the job.”
    - Tom R.
    "Always professional."
    “They squeezed a whole lot of equipment into a tiny attic without a single complaint. They also helped with all of the energy-saving rebates . The estimator, installers, and service guys have been great.”
    - Sean M.

Why Choose Us?

Hassler is your local, full service, trained and certified home performance experts. There are many advantages to choosing Hassler as your source for heating and cooling installation and service, including the fact that we are locally owned and operated.

  • Locally owned and operated since 1999.
  • We are a Carrier Dealer.
  • Installation and service technicians are all factory-trained and certified.
  • We use only the most reliable, high-quality, energy-efficient equipment.
  • Knowledgeable representatives provide various purchasing options.
  • We take special care to protect your home during installation.
  • Your heating and cooling system is guaranteed in writing.
  • We offer factory-backed extended warranties.
  • Full sheet metal shop to ensure highest quality system and duct installation.
  • Refrigerant removal is provided according to federal guidelines.
  • We are a friendly, drug-free company.

NATE Quality Circle Contractor

A NATE Quality Circle Contractor has at least 80% of their total technicians NATE certified. This high level of certification means they are ensuring their technicians are capable of providing the highest-quality service to their customers.

Contact us and learn how our experienced team can increase the comfort of your home.

Our Blog

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