3 Best HVAC Services in Walnut Creek, CA

“Chill Heating & Cooling is a trusted provider of expert HVAC services, offering tailored installations, repairs, and maintenance to keep homes and businesses comfortable year-round. The company has grown to serve over 10,000 clients while staying true to its mission of keeping customers cool in the summer and warm in the winter. Their “chill,” relaxed service model emphasizes simplicity, speed, and friendliness. Chill Heating & Cooling delivers honest, high-quality solutions backed by strong values and a people-first culture with certified and highly skilled technicians. They hold a California Contractor’s License (C-20 HVAC), maintain EPA certification, and offer fast scheduling with reliable service. As a family-owned business trusted by more than 94,000 satisfied customers, including major brands like Hilton, Marriott, and Hyatt, they bring decades of HVAC expertise to every job. Their licensed, certified team includes Carrier Factory Authorized Dealers and Mitsubishi Diamond Contractors, ensuring top-tier service. Dedicated to transparency and exceptional customer care, Chill Heating & Cooling is equipped to diagnose, repair, replace, or install any heating, cooling, or refrigeration system with integrity and professionalism.”

“Galaxy Heating & Air Conditioning is a reliable HVAC and electrical company serving homeowners in Contra Costa, Alameda, and San Francisco counties. They focus on providing high-quality comfort solutions with honesty and a personal touch. The company specializes in energy-efficient heating, cooling, and electrical upgrades designed for the Bay Area's unique climate. They offer expert installation of heat pump systems, upgrades for electrical panels in modern homes, and 24/7 emergency service. Their certified team ensures each installation and repair is done right the first time. As a Diamond Elite Mitsubishi dealer and American Standard Platinum dealer, Galaxy provides highly efficient and reliable equipment. They also offer options from other trusted brands like Lennox, Carrier, Trane, Daikin, Bosch, Goodman, and Rheem. Galaxy helps homeowners access California rebate programs and electrification incentives to make energy-efficient upgrades, like heat pump HVAC systems and heat pump water heaters, more affordable. They are committed to professionalism and customer satisfaction, backing every project with strong guarantees and clear communication. Choosing Galaxy Heating & Air Conditioning means working with a local team dedicated to delivering comfort and peace of mind.”

“Connolly Heating and Air Conditioning opened its doors to provide reliable heating and cooling services throughout Contra Costa County. The company is dedicated to delivering industry-leading HVAC solutions, offering system design and installation, air duct cleaning, and a range of services that improve indoor air quality for both residential and commercial clients. Connolly Heating and Air Conditioning is also qualified to assess energy use and provide effective energy-saving recommendations. Owner Norman Grimes takes great pride in his family business and credits its success to a highly skilled, handpicked team of installers, service technicians, and office staff. Each member plays an essential role in ensuring clients receive exceptional service from start to finish. The team understands the importance of proper HVAC system design, precise execution, and the need for consistently high-quality workmanship. Connolly Heating and Air Conditioning emphasizes strong quality control at every stage of service, a priority Grimes believes is key to achieving the best results. Since its inception, the company has remained committed to taking care of customers and addressing their concerns promptly. Clients can expect professional service, attentive care, and results that exceed expectations when working with the Connolly team.”