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About DG Heating & Air Conditioning in San Jose

The Leaders in Residential & Commercial Heating & AC Services

Welcome to DG Heating & Air Conditioning, an HVAC company that is honest, dependable, and here for all of your home and business heating and cooling needs in San Jose. Unlike other companies, we put communication and friendliness at the forefront of our business and strive to impress our customers with every step of the service experience. Our goal is to provide quality services from friendly professionals in an efficient, affordable, and honest manner. When you choose our team, you’re choosing the best—and we’ll settle for nothing less.

The services we offer include:

DG Heating & Air Conditioning is here to ensure you’re always comfortable. Contact us today at (408) 669-3496. We also proudly service the Southern Bay Area. 

Taking Customer Service to New Heights

As a homegrown business, we recognize the need to provide quality, trustworthy services in order to build long-lasting relationships with our customers. Simply put, we want to deliver the customer experience we would expect to receive ourselves. In addition to offering over 30 years of combined experience, our team members are friendly, punctual, and always upfront about our services before we get to work. We understand how stressful heating and AC problems can be—especially when the weather outside is less than ideal. We'll restore comfort to your space as quickly and efficiently as possible.

Happy to Provide Free Estimates

Whether you believe you have a small problem or think you need a complex system replacement, DG Heating & Air Conditioning will gladly help with projects of every size and difficulty. It’s important to air on the side of caution and contact our San Jose heating and cooling team the moment you detect an issue. Being proactive can save you time, money, and hassle in the future. With our free estimates, we’ll go over the details of your problem, propose a solution, and let you know any costs upfront. Your satisfaction is our number one concern.

Contact us today at (408) 669-3496 for all of your home and business heating and cooling services in San Jose!


Hear From Our Happy customers

Reviews & Testimonials
    “I was very satisfied with the work performed and the professionalism of the crew.”
    “I was astounded at the amount of work that the crew of three accomplished in just one day. They did a good job of cleanup and the system works great.”
    - Eric L.
    “The Whole Experience Was Quality”
    “From the estimator, (John) to Leticia in the office, and then the competent technicians, we have been very happy with the product and with the team of people that make up DG.”
    - E. Robinson
    “Would Recommend DG to Everyone We Know”
    “The crew, headed by Roy was punctual, efficient and so nice to interact with! We would recommend DG to everyone we know!”
    - Heather S.
    “Great Service”
    “Technician Dan arrived on time, was friendly, answered my questions”
    - Andres D.
    “Knowledgeable & Easy to Work With”
    “Installation of the heater had several challenges, all resolved professionally and efficiently.”
    - John S.
    “Job Well Done”
    “Personable, Timely, Clean, Courteous”
    - Maureen T.
    “Quick, Fast, Efficient Work”
    “Big thanks to John, Mike, Roy, Leticia, and all other installers who did an awesome job on my HVAC system.”
    - Brian T.
    “A Job Well Done”
    “After spending my entire career in the industrial air conditioning industry, I was very impressed with DG's workmanship and professionalism.”
    - John W.


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  • Custom HVAC Solutions Catered to You
  • Support for You & Your Home
  • Passionate, Punctual & Reliable
  • Looking to Build Long Term Relationships
  • Business Built on Quality Services

Highly Regarded in our community

  • Angie's List
  • BBB Accredited Business
  • Nextdoor