Hillcrest, a division of Mesa Energy Systems, Inc., has been providing excellent heating and air conditioning service to the Central Valley for more than 60 years – and now we offer plumbing services to our residential customers in Bakersfield as well. We’ve been around since 1950, so our staff is knowledgeable and fully trained on a full range of HVAC products, maintenance, technology – you name it. We do professional, quality work for everything we do so you can enjoy a more comfortable home.