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Stay Comfortable San Diego
Ductless mini split installation in San Diego
Efficient heating and cooling without ductwork. Mini splits are a great fit for additions, garages, converted spaces, hot upstairs rooms and homes that never had central air. Free estimates.
- Free estimates on new systems
- Residential & commercial
- 5-star Google reviews
Free mini split estimates. We'll look at the rooms you want to condition and recommend the right setup, whether that's one zone or several. Get your free estimate →
Mini split installation
What's included
On-site assessment
We look at the rooms, layout and your comfort goals to plan zones and equipment.
Right-sized equipment
Each indoor unit is sized to the space it serves.
Indoor & outdoor units
Professional mounting of the wall unit(s) and outdoor condenser.
Line set & drain
Clean routing of refrigerant lines and condensate drainage.
Startup & testing
We start the system, check its operation and make sure it's running properly.
Walkthrough
We show you how to use the remote, modes and filters.
Benefits
Why choose a mini split?
- No ductwork neededIdeal for homes without ducts, or spaces where adding ducts isn't practical.
- Heating and coolingMost mini splits are heat pumps, giving you both in one system.
- Room-by-room controlEach zone can be set to its own temperature.
- Efficient operationDuctless systems avoid the energy losses that can happen through ductwork.
- Quiet comfortIndoor units are designed to run quietly in living spaces.

Homes & businesses
Residential and commercial
For your home
Single-room and multi-zone systems for additions, ADUs, garages, bonus rooms, and homes without central air.
For your business
Ductless systems for offices, server and equipment rooms, small retail spaces and other areas that need dedicated heating or cooling.

Clean installs
Neat, solid outdoor installs
We set outdoor condensers level on a proper pad or wall bracket and keep the line set and drain routing tidy, so your system looks good and runs the way it should.
FAQ
Mini split FAQ
How many indoor units do I need?
It depends on the number of rooms or areas you want to condition and how open the layout is. We'll recommend a setup during your free estimate.
Can a mini split heat as well as cool?
Most mini splits are heat pumps and can both heat and cool, which suits San Diego's mild climate well.
Do mini splits need maintenance?
Yes. Cleaning the indoor unit filters regularly and having the system checked periodically keeps it running efficiently.
Can I add a mini split to a home that already has central air?
Yes. Mini splits are often used to fix a hot or cold room, or to condition an addition, alongside an existing central system.
Do you offer free estimates on mini splits?
Yes. Mini split estimates are free.
Thinking about a mini split?
Get a free estimate for your home, addition or business.
Or email us at mike@75hvac.com
