Hassler Heating and Air Conditioning, LLC is an HVAC company serving Oakland, CA, and the surrounding East Bay area, including Alameda, Contra Costa, and Marin counties. They provide residential heating and cooling services such as air conditioning, furnace, and heat pump installation and repair, as well as indoor air quality improvements and home performance upgrades. With over 25 years of experience since 1999, Hassler Heating and Air Conditioning specializes in energy-efficient HVAC solutions and helps customers access rebates and incentives for upgrades. The company also supports home electrification initiatives and offers weekend appointments to accommodate busy schedules.

Cali HVAC is a licensed and insured HVAC company serving Oakland, CA, and the broader Contra Costa County area. They provide a wide range of services including air conditioning, heating, duct services, thermostat installation, indoor air quality improvements, and commercial HVAC solutions. As a Carrier Factory Authorized Dealer, Cali HVAC installs premium heating and cooling systems from trusted brands like Carrier, Daikin, and Goodman, ensuring expert installation backed by secure warranties. The company emphasizes tailored solutions for homes and businesses and offers same-day service when possible along with weekend appointments.

Chill-Hub HVAC and Refrigeration Service provides HVAC repair, installation, and tune-up services in Oakland, CA, and surrounding Contra Costa and Alameda Counties. They handle air conditioning, furnace, heat pump, and refrigeration systems with thorough inspections to prevent costly breakdowns. With over 20 years of experience, Chill-Hub offers transparent pricing and expert service using top-rated brands to ensure reliable system performance.

Nur HVAC is an HVAC company based in Fremont, CA, offering a range of services including installation, maintenance, and repair of cooling systems, furnaces, water heaters, insulation, and ductwork. They serve both residential and commercial clients in Fremont and nearby areas such as San Jose and Mountain View. Their team provides certified expertise in HVAC system installation and furnace replacement, with a focus on energy-efficient solutions like Comfort Cloud™ insulation.

Bear Mechanical Inc is an HVAC contractor based in Oakland, CA, offering installation, service, and maintenance for residential and commercial HVAC systems. They provide a range of services including air conditioning, furnace, heat pump, and boiler installation, as well as HVAC tune-ups and professional air duct cleaning. The company also focuses on improving indoor air quality by designing and servicing high-performance duct systems to ensure efficient airflow and a healthier environment.

Smart Heating and Air Conditioning is an HVAC company serving Oakland, CA, offering a full range of heating, cooling, and indoor air quality services. Their services include air conditioner and furnace repair, installation, maintenance, and tune-ups. They provide 24/7 availability for urgent heating and cooling issues and employ certified technicians with advanced training to handle various HVAC challenges. The company emphasizes flexible payment options and backs their work with a satisfaction guarantee.

Richard's Heating & Air Repair, Inc. provides heating and air conditioning repair, replacement, and installation services in Fremont, CA. The company handles furnace and AC system repairs as well as thermostat installations. They are known for diagnosing issues accurately, such as resolving condensate drain leaks and blower motor problems. Customers appreciate their honest advice and thorough explanations when selecting HVAC systems. The business operates with regular weekday hours and emphasizes reliable service without pressure to buy.

Connolly Heating and Air Conditioning is an HVAC company serving Oakland, CA, and nearby communities. Established in 1971, they provide residential and commercial heating, air conditioning, maintenance, and indoor air quality services. As a NATE-certified contractor and Carrier factory-trained dealer, Connolly offers reliable HVAC installations, repairs, and tune-ups. Their expertise includes servicing all makes and brands with a workmanship guarantee, reflecting over five decades of industry experience.

L.J. Kruse Company is a family-owned plumbing, heating, and cooling business based in Berkeley, California, serving Oakland, CA, and the surrounding Northern California region. They offer a range of HVAC services including air conditioning, furnace, heat pump, and boiler repair and installation, as well as HVAC tune-ups. With over 100 years of experience, L.J. Kruse Company combines traditional values with skilled expertise to serve both residential and commercial clients across Alameda County, Contra Costa County, San Francisco, and Silicon Valley.

Contra Costa Climate Control is a family-owned HVAC company serving Oakland, CA, and nearby communities including Concord, Danville, Walnut Creek, and Lafayette. Since 1997, they have provided residential and commercial heating, ventilation, and air conditioning services. Their offerings include installation, repair, and maintenance of air conditioners, furnaces, heat pumps, ductless mini-splits, and indoor air quality systems. The company also installs advanced thermostats and offers comprehensive HVAC maintenance packages. Their technicians are licensed, background-checked, and available around the clock to support system reliability and efficiency.