Mini Split Installation
Mini Split Installation
A ductless mini split is a heating and cooling system that mounts on the wall and connects to an outdoor unit through a small line set, so it needs no ductwork at all. That makes it the usual answer for a converted garage, an ADU, a bonus room over the garage, or an older San Diego house that never had ducts. Each head is its own zone, so you are not paying to condition the whole house to fix one hot room. They also run as heat pumps, which means the same unit covers the handful of cold weeks we get. Sizing matters more than brand here, and we size to the room rather than to a rule of thumb. Eddie does the room survey himself, measuring square footage, sun exposure and how the room actually gets used before anyone quotes a head. CrossBreeze installs mini splits across San Diego, the South Bay and East County, from Mira Mesa out to Chula Vista and El Cajon.
Key Benefits
Our Process
Room survey
Square footage, sun exposure, insulation and how the room is actually used.
Head and line routing
Where the head goes and how the line set reaches the condenser cleanly.
Mount and charge
Head mounted level, line set run, system evacuated and charged to spec.
Zone verification
Each head run on its own, temperatures checked at the head before signoff.
Why Choose CrossBreeze Heating & Air?
Trusted by homeowners across San Diego, the South Bay and East County.
Frequently Asked Questions
Can I put a mini split in a garage conversion or ADU?
That is the most common reason people call us about them. A ductless mini split needs no ductwork at all, just a small line set through the wall to an outdoor unit, which is why it is usually the only practical option for a converted garage, an ADU or a bonus room that was never on the main system.
How many indoor heads do I need?
One per area you want to control separately. A single room takes one head. A converted garage with a bathroom might take two. We size to the room rather than to a rule of thumb, because an oversized head short cycles, never pulls humidity out, and wears itself out early.
Do mini splits heat as well as cool?
Yes. They run as heat pumps, so the same unit covers the handful of genuinely cold weeks San Diego gets. For most homes here that means one system instead of two, and no gas line into the room.
Which mini split brands do you install?
Mitsubishi, Fujitsu, Daikin and Samsung are the ductless lines we work with most, and we also install Goodman, Innovair and AC Pro. Sizing and the quality of the install matter more to how it performs than the badge on the front does.
Is a mini split cheaper than extending my existing ducts?
Often, yes, especially if the run is long or the attic access is bad. We will price both honestly. If extending the ductwork is genuinely the better answer for your house we will say so rather than sell you the job we would rather do.
Where do you install mini splits in San Diego County?
Across all 23 communities we cover, from Mira Mesa and Scripps Ranch to Del Mar, Solana Beach, Encinitas and Poway in the north. CrossBreeze is Filipino owned, Eddie Layola has run it since 2018, and it holds CSLB #1055889 with a 5.0 rating from 26 Google reviews. Eddie sizes each head to the room before anything is quoted.
Mini Split Installation Across San Diego County
We are based in Mira Mesa and provide mini split installation throughout San Diego, the South Bay and East County. Click your city for the local page.
Interested in Mini Split Installation?
Tell us what the system is doing and Eddie will come out to look at it.
Call 760-715-0523