Ductless Mini-Split Installation

Enjoy efficient heating and cooling without installing ductwork. DG Heating & Air Conditioning designs and installs ductless mini-split systems that deliver flexible comfort for homes across San Jose and the Bay Area.

Flexible Heating and Cooling Without Ductwork

Perfect Climate Control for Any Space

Ductless mini-split systems provide powerful heating and cooling without the need for traditional ductwork. Each system consists of an outdoor unit connected to one or more sleek indoor air handlers that deliver precise temperature control in individual rooms. These systems are especially useful for homes without existing ducts, room additions, garages, ADUs, and areas that never seem to stay comfortable with central HVAC alone. Because mini-splits operate as heat pumps, they provide both heating and cooling throughout the year. For many San Jose homeowners, ductless systems offer a modern, efficient way to solve comfort challenges without major renovations.

Ductless Mini-Split Installation

We install advanced ductless mini-split systems that deliver efficient heating and cooling without ductwork. These systems are ideal for room additions, garages, offices, and older homes.

Multi-Zone Mini-Split Systems

One outdoor condenser can power multiple indoor units, allowing you to create individual temperature zones in different rooms throughout your home.

Mini-Split Repair and Service

Our technicians diagnose and repair ductless systems quickly, addressing issues such as refrigerant leaks, airflow problems, and electronic control failures.

Advantages of Ductless Mini-Split Systems

Modern Comfort for Today’s Homes

No Ductwork Required

Ductless systems require only a small wall opening to connect indoor and outdoor units, making installation quick and minimally invasive.

Energy-Efficient Operation

Many mini-split systems are highly efficient and can significantly reduce energy use compared to older heating and cooling equipment.

Personalized Room-by-Room Comfort

Zoned control allows different areas of your home to maintain different temperatures, eliminating thermostat conflicts.

Great for Additions and Older Homes

Mini-splits are ideal for homes that lack ductwork or spaces where extending ducts would be difficult.

Quiet, Modern Performance

Today’s ductless systems operate quietly and feature sleek indoor units designed to blend into modern living spaces.

Dining room with wooden table, beige chairs, and glass-paneled door. Sunlight streams through the window.

$99 MAINTENANCE

Protect your comfort year-round with our seasonal maintenance service. Our technicians inspect and optimize your heating and cooling systems to ensure reliable performance.

Ductless Mini-Split Questions Homeowners Ask

  • Can I cool my addition without ductwork?

    Yes. Ductless mini-splits are one of the best solutions for cooling or heating additions, garages, ADUs, or other spaces where installing ducts would be difficult.

  • What are the benefits of ductless mini-splits vs central air?

    Mini-splits allow zoned temperature control, require less installation work, and often operate more efficiently for smaller spaces or individual rooms.

  • How many rooms can a ductless system serve?

    Many systems can support multiple indoor units connected to one outdoor condenser, allowing you to control temperatures in several rooms independently.

  • Are ductless mini-splits energy efficient?

    Yes. Many modern systems deliver very high efficiency and can significantly reduce heating and cooling energy usage.

  • Can ductless systems work alongside my existing HVAC system?

    Absolutely. Many homeowners add a ductless unit to complement their central HVAC system for spaces like sunrooms, offices, or upstairs bedrooms.