DG Heating and Air Conditioning

San Jose homeowners turn to DG Heating and Air Conditioning for heating and air conditioning installation, repair and routine maintenance that keeps their systems running reliably year-round. Our team has been installing and servicing heating and cooling systems across San Jose and Santa Clara County, and many of our customers have relied on us for years.

We take the time to explain what your system needs and why, so you can make confident decisions without feeling pressured into work you don't need. Our technicians arrive promptly and approach complicated problems patiently, whether that means tracking down an issue or diagnosing a furnace repair.

We're proud to offer a military discount for veterans, and our crews handle everything from full AC replacements and heat pump installs to multi-zone systems, including careful line-set routing that keeps the work clean and out of sight. Ongoing maintenance visits, including inspections, cleanings and filter changes, help our customers catch small problems early.

Call us to talk through your heating or cooling needs, or to schedule your next service visit.