Serving Berkeley, Oakland, and Alameda, Contra Costa, and Marin Counties!
larger ac unit

At Hassler Heating, we’re constantly working with our customers to help create cooler, more comfortable homes no matter how hot it gets outside. We often talk to El Cerrito, CA homeowners about how important it is to properly size a cooling system before settling on any particular product.

air leaks in el cerrito home

Did you know heating and cooling costs are the largest energy expense for most homes? These costs account for around 48% of the energy use in a typical US home.

air sealing energy savings

The summer weather is here in full force in El Cerrito, and many area homeowners are wondering what they can do in order to stay cool on the hottest days of the year. At Hassler Heating, we believe that the key to a comfortable, healthy and efficient home is a properly sealed home envelope. With air sealing and insulation on your side, you can ensure a cool home environment no matter how hot it gets outside.

Hassler Contractor of the Year

Hassler was featured on recently for being the 2015 Home Upgrade Program Contractor of the Year. 

2015 PGE Contractor of the Year

El Cerrito's trusted home performance experts, Hassler Heating and Air Conditioning, have been named the 2015 Home Upgrade Program Contractor of the Year by PG&E and Energy Upgrade California. Hassler takes the whole home approach to increasing the home performance of homes throughout El Cerrito and Oakland, CA.

indoor air quality

A lot of homeowners living in Berkeley or Oakland, CA find themselves focusing more and more each year on improving energy efficiency. Living a greener, more sustainable lifestyle is no doubt the trend in California, and there are countless different ways in which you can do so. There’s a lot more to home performance than simply energy efficiency, however—especially when it comes to the health and safety of you and your family.

old furnace east bay

With the New Year upon us, many Bay Area residents are scrambling to pick up last-minute gifts and get ready for family and friends to visit. It’s no secret that now’s one of the best times of the year to slow down and celebrate, but it’s also an important time to think about home performance.  If you are looking for an improvement in 2016, how about a new furnace? If yours has been acting up, or looks like the picture, now’s the time to make the switch, and it doesn’t have to be as expensive as you might think—Hassler has you covered.

carbon monoxide in the home

With wet winter weather rolling into the Bay Area, homeowners are going to be spending a lot more time indoors. While relaxing at home and being cozy are both high priority for an enjoyable winter, making sure your home’s indoor air quality (IAQ) is safe and healthy should be first on the list. If your home’s air quality is lacking, you could be exposing your family to carbon monoxide. At Hassler, we’re here to help.

furnace filters

East Bay area homeowners are going to be spending a lot more time indoors in the coming months. At Hassler Heating, we want our customers to have a winter that’s cozy and warm, especially as the holidays approach. If you find yourself turning on your furnace and finding the filters are dirty or clogged, it’s time to take a closer look at the causes. Replacing furnace filters isn’t a big job, but it’s an avoidable nuisance that can end up affecting the efficiency of your unit. Here are some of the most common causes:

CoolCalifornia Challenge Hassler

Pitting city against city in a battle to see who does the best job of lowering their carbon footprint. If you live in El Cerrito, California, you’re ready to join the challenge. Register today and start logging your info to earn points. Every point you earn helps bring the City of El Cerrito closer to victory. Register Here!
Once you register be sure to share with friends, family & neighbors!


Receive a $499 value for only $100 with this limited time offer.
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