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.

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.

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.

Elevated Comfort is an HVAC company serving Oakland, CA, specializing in air conditioning, furnace, and heat pump repair and installation. They provide same-day HVAC services to address urgent heating and cooling needs promptly. The company also offers HVAC tune-up services to help maintain system efficiency and longevity. Elevated Comfort supports customers with flexible financing options to make HVAC repairs and installations more accessible.

Honrath & Stacey Plumbing & Heating is a family-owned company serving Oakland, CA, and nearby areas including Richmond, San Pablo, Petaluma, and Berkeley. They provide furnace and heater repairs, water heater services, and general plumbing repairs such as water line fixes and drain cleaning. Founded in 1967, the company has decades of experience in heating and plumbing services. Their service area covers multiple cities in Contra Costa County.

Breathable is a contractor based in San Francisco, CA, specializing in heat pump installation, duct cleaning, and indoor air quality services. They focus on creating healthier indoor environments through thorough HVAC system cleaning, air duct inspections, and whole house air purification. Their services include designing and replacing air duct systems to improve comfort, air quality, and energy efficiency. Breathable has experience serving residential clients with duct cleaning and heat pump installations, emphasizing cleaner and more energy-efficient indoor air solutions.

Mercury Heating and Air Conditioning Inc is an HVAC company serving Oakland, CA, specializing in heating and air conditioning repair, installation, and indoor air quality services. They handle a wide range of equipment brands and models, offering thorough tune-ups, repairs, and ductless AC installations. Their technicians focus on detailed work and maintain a clean work area. Mercury Heating and Air Conditioning Inc also provides annual maintenance plans and warranties on repairs, reflecting their commitment to ongoing service quality.