Heating & Cooling California for Over 25 Years Hassler Heating and Air Conditioning, LLC provides exceptional residential heating and cooling services with a focus on improving your home's energy efficiency.

HVAC Services in the East Bay

HVAC Company Serving Alameda, Contra Costa, & Marin Counties

Is your home ready to weather the East Bay's ever-changing seasons? From the cool, foggy summers to the mild, rainy winters, your HVAC system works hard to keep your family comfortable year-round. At Hassler Heating and Air Conditioning, we understand the importance of a reliable and efficient heating and cooling system, which is why we offer the expert service you need to keep your home comfortable.

Since 1999, Hassler Heating and Air Conditioning has been the trusted name in HVAC services for local homeowners and businesses. We’ve built our reputation on a foundation of quality workmanship, reliable service, and a commitment to customer satisfaction. Our team of skilled technicians is equipped to handle all your HVAC needs, from routine maintenance to complex installations.

 Call (510) 288-5563 to schedule service with an East Bay HVAC contractor at Hassler Heating and Air Conditioning.

  • Save $3,000 In Rebates

    Call us to learn which rebates & tax credits you qualify for.

  • Home Electrification
    Providing energy-efficient updates to CA homeowners.
  • VIP Club Membership
    Save 15% on repairs by becoming ar VIP Club member.
  • Financing Available

    Prioritize your home comfort while staying within budget.

Reviews from Our Customers

Hassler was started with one idea in mind: customer satisfaction.
    "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 for HVAC Services in the East Bay

We’re not just another HVAC company; we’re your neighbors, committed to delivering top-tier service and expert solutions to our community. People trust Hassler Heating and Air Conditioning for many reasons, such as:

  • Local expertise: We understand the unique climate challenges of our region and can recommend personalized comfort solutions for your home.
  • Quality workmanship: We use only high-quality parts and materials, and a solid warranty backs our products and services.
  • Customer satisfaction: Your satisfaction is paramount. We’re committed to delivering outstanding service and exceeding your expectations.
  • Free estimates: We offer free, no-obligation estimates.
  • Financing options: We offer flexible financing options to take the stress out of funding a new cooling or heating system.
  • Weekend appointments: We understand you’re busy. That’s why we offer convenient weekend appointments to fit your schedule.

When you choose Hassler Heating and Air Conditioning, you’re choosing a partner dedicated to your home comfort. Contact us today, and let’s work together to create the perfect indoor environment for you and your family.

Leading California’s Electrification Initiatives

We've Saved Customers Over $5 Million in Energy Rebates Since 2015

Upgrading your home’s HVAC system is a significant investment. That’s why we’re dedicated to helping our customers find every possible way to save money while making their homes more energy-efficient and comfortable. We’re experts in navigating the complex world of rebates and incentives, including:

  • IRA rebates: Take advantage of the Inflation Reduction Act’s generous rebates for energy-efficient HVAC upgrades.
  • Federal and local tax credits: You may qualify for valuable tax credits for installing qualifying HVAC equipment.
  • Multifamily and commercial energy rebates: We can help property owners and businesses access rebates for energy-efficient upgrades in multi-unit buildings and commercial spaces.

Since 2015, we’ve helped our customers save over $5 million by taking advantage of these programs! Whether you’re considering a heat pump installation, a whole-home energy audit, or any other energy-saving upgrade, our team can help you find the best rebates and incentives for your project.

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.

Special Discounts & Promotions

At Hassler Heating and Air Conditioning, we believe that everyone deserves a comfortable and energy-efficient home, and we’re committed to making that a reality for our customers. That’s why we go above and beyond to provide you with exceptional value and help you save money on your HVAC needs. In addition to guiding you through available rebates and incentives, we also offer a variety of discounts and promotions throughout the year.  You’ll find special offers on:

  • Seasonal tune-ups and maintenance: Keep your system running efficiently and prevent costly breakdowns with our discounted maintenance services.
  • HVAC system upgrades and replacements: Save on new, energy-efficient HVAC equipment that can lower your energy bills and improve your home comfort.
  • New customer discounts: We welcome new customers with special offers to show our appreciation for your business.
  • $350 OFF Water Heater

    With Purchase of a new HVAC System

    Must mention at time of booking. Some exclusions apply. Cannot be used towards previous purchases or be combined with any other offer.
  • $150 OFF Aerus Air Scrubber

    Keep Your Home Healthy!

    Must mention at time of booking. This offer cannot be combined with any other offers and can only be used once per household. Some exclusions may apply. Must be approved for financing.
  • $1,000 Tech Clean California Heat Pump Rebate

    Electrify Your home

    Must mention at time of booking. Some exclusions may apply. Call for more details.
  • Schedule A Home Energy Audit

    Home Energy Audit Credited Upon Installation With Hassler

    Must mention at time of booking. Some exclusions may apply. Call for more details.
  • One Free Annual Maintenance

    With Heat Pump or Heat Pump Water Heater Conversion

    Must mention at time of booking.
  • 0% Interest for 12 Months

    Apply for financing today!

    Must mention at time of booking. This offer cannot be combined with any other offers and can only be used once per household. Some exclusions may apply. Must be approved for financing.

Our FAQs

Get Answers to Some of Our Customers’ Most Frequently Asked Questions
  • What is HVAC?

    HVAC stands for heating, ventilation and air conditioning, and refers to the systems within your commercial building or residential home that heat and cool (condition) the space.

  • Why should I replace my AC and heating systems?

    If your system is more than 10 years old, it is likely inefficient or at least in need of repair. Most new systems are up to 60 percent more efficient than those commonly installed a decade ago. Despite the upfront costs, it can be less expensive over time to install a new system than paying for ongoing maintenance and high monthly utility bills. With regular heating and cooling maintenance and service, you can expect a new HVAC system to last 15 years to 20 years.

  • What is involved in installing a new HVAC system?

    In a new home, you may need to install ductwork, which is usually metal or fiberglass, insulation, refrigerant piping, electrical service and wiring, thermostats, registers and grills and more. Ductwork is important because it takes care of your home’s air supply and return. The supply ductwork attaches to the outflow and delivers air to each zone in your home. Return ductwork draws air out to be heated or cooled, and usually requires an air filter.

  • How can I increase the efficiency of my HVAC system?

    There are a few simple things you can do to keep your system at peak performance.

    1. Regularly clean and replace your air filters with a quality product, or call us to check them.

    2. Keep the equipment operating at recommended levels, as specified by your Hassler technician.

    3. Use shades or drapes on windows to moderate temperatures in rooms that get lots of sunlight.

    4. Make sure your home has properly installed, adequate insulation.

  • What is a Heat Pump?

    A residential air-source heat pump system offers an energy-efficient alternative to other HVAC systems by moving heat in or out of your home instead of creating it. A heat pump consists of an outdoor unit that circulates refrigerant and an indoor air handler that pumps conditioned air directly into your living space or through your home’s ductwork.

    During the summer, a heat pump works similarly to your refrigerator and extracts the heat found inside and pumps it outside to keep your living spaces comfortable. Heat pumps can efficiently bring heat inside after extracting it from the outside air during the heating season.

  • What are the benefits of home electrification?

    Home electrification not only helps reduce carbon emissions from your home and meets California’s zero net energy guidelines, it also provides several benefits to your home comfort, health, and efficiency:

    • Energy and cost savings: Today’s all-electric appliances are known for their superior efficiency and many homeowners notice a significant reduction in their year-round energy bills after electrifying their homes.
    • Indoor air quality benefits: Electric HVAC systems offer innovative ventilation and air purification capabilities that can help reduce pollutants in your home, like moisture, allergens, VOCs, and more.
    • Improved home safety: By eliminating fossil fuels from your home, like propane and gas, you’re also eliminating your risk of dangerous carbon monoxide leaks.
    • Renewable energy integration: One of the great things about upgrading your home to run exclusively on electricity is that you can generate your own for free when you also install solar panels. The Bay Area is ideal for solar energy production, making it a smart choice for homeowners.
    • Innovative technologies: Today’s electric appliances are equipped with highly advanced technologies that make them easier to use and more efficient. Some of these features include in-app monitoring & controls, predictive maintenance, machine learning, and more.
    • Increased comfort: In addition to increasing the efficiency of your home, electric appliances are also more effective than their fossil fuel predecessors. When you upgrade your home to electric HVAC systems, you’ll notice more consistent temperatures and advanced humidity control to stay more comfortable.
Who We Are Californians Helping Californians

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.

Contact Us

Schedule a Service Today
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