Irish Heating and Air Conditioning is a heating and cooling contractor serving Stockton, CA, and the surrounding Central Valley area. They provide a wide range of HVAC services including air conditioning repair and installation, furnace and boiler services, ductless mini-split systems, thermostat installation, and indoor air quality solutions. The company installs equipment from leading manufacturers and offers commercial HVAC system design and maintenance. Irish Heating and Air Conditioning also specializes in whole house air purifier installations and home generator services. Their technicians are NATE and EPA certified, licensed, insured, and background-checked. The company operates seven days a week and supports customers with a 1-year parts and labor warranty on repairs and up to 10 years on new installations.

Bell Brothers Plumbing Heating & Air - Concord provides HVAC tune-up services in Oakland, CA. They offer annual maintenance plans that include two tune-ups-one for air conditioning and one for heating-along with plumbing inspections to help maintain system efficiency and detect issues early. The company is recognized for quality and customer satisfaction in the East Bay area.

Rivers Plumbing, Heating And Air is a family owned and operated company serving Fremont, CA, and surrounding communities with over 35 years of experience. They provide a range of services including air conditioning and furnace repair, HVAC installation, indoor air quality solutions, and regular maintenance. Their licensed contractors handle both residential and commercial projects, offering expertise in plumbing as well as heating and air conditioning systems. Rivers Plumbing, Heating And Air is known for offering arrival time windows and same-day service to accommodate customer schedules.

Contra Costa Heating & Air Conditioning is a family-owned HVAC company serving San Francisco, CA. Founded in 1970, they offer a wide range of services including installation, repair, and maintenance of air conditioners, furnaces, heat pumps, mini splits, and thermostats. They also provide indoor air quality assessments and emergency HVAC services. As a Dave Lennox Premier Dealer, they specialize in high-performance Lennox systems and focus on energy-efficient solutions tailored to residential and commercial properties. Their experienced technicians handle complex installations and repairs with attention to detail and professionalism.

O.K. Heating & Air Conditioning is an HVAC company serving Fremont, CA, and the surrounding Northern California areas including Livermore, Walnut Creek, and Pleasanton. With over 40 years of experience since 1976, they provide heating and air conditioning repair, installation, and maintenance services for both residential and commercial properties. As a factory authorized dealer of Bryant® products, they offer high-quality HVAC equipment and specialize in servicing all types and brands of systems. Their capabilities include emergency HVAC repairs and routine maintenance agreements to help keep systems running efficiently and reliably.