DG Heating & Air Conditioning is a reliable HVAC service company based in San Jose, specializing in heating and air conditioning solutions for both residential and commercial needs. Customers appreciate their quick response times and the knowledgeable staff who can handle various HVAC challenges, from small repairs to major installations. Many have praised DG for successfully diagnosing and fixing issues that other vendors could not. They also provide additional services such as indoor air quality solutions, duct removal and replacement, ductless mini-split installations, and solar services. Clients express satisfaction with their careful work and custom solutions, recommending DG Heating & Air Conditioning for anyone seeking dependable and effective HVAC services. The company has a reputation for friendly, professional technicians who arrive on time and explain everything clearly, making customers feel confident in their service. Recent clients mention that Brandon, a technician, is very knowledgeable and approachable, providing comprehensive maintenance and inspections, especially for older systems. Although some customers choose different manufacturers for new equipment, they still value the helpful advice and quality service from DG. Overall, DG Heating & Air Conditioning continues to be trusted for repairs, maintenance, and installations, with many customers returning year after year.
DG team outstanding. From answering my call in to service onsite was top notch. Always in touch with me. Picture of the serviceman. Confirming appt. Was a week before service but it was just AC. Ha ha hottest days.
April 2026
Andres was fantastic, he was thorough and diligent, explaining what and why he was doing things every step of the way. Best experience I've ever had.
March 2026
Antonio & Andreas have both helped me in the past and they were very professional, kind and explained everything well. I’ve used D&G for 10 years! They overall have been great.
