Mini-Split Install

Ductless mini-split installation across San Diego County

A ductless mini-split delivers precise heating and cooling to a room or zone without touching existing ductwork or tearing into walls. We connect San Diego County homeowners with insured C-20 HVAC crews that size the system correctly, mount the indoor head at the right height and location, run the refrigerant line set cleanly, and leave you a documented install with permit sign-off.

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HVAC crew mounting a ductless mini-split indoor head unit on an interior wall in a San Diego County home

What's included in this service?

On-site load calculation to size the BTU output for the specific room or zone
Indoor head unit mounting: height, wall clearance, and drainage pitch per manufacturer specs
Outdoor condenser placement on a concrete pad or wall bracket, with vibration isolation
Refrigerant line set run through the wall or along the exterior with protective conduit
Electrical circuit installation for the dedicated 240-volt disconnect and control wiring
Refrigerant charge verification, startup commissioning, and homeowner orientation on controls

When do you need this service?

You have a room addition, converted garage, or bonus room that gets no conditioned air from the main system
Your home has no existing ductwork and a central system would require major construction
One zone of the house runs much hotter or colder than the rest and the main system cannot fix it
You want to cool or heat a detached casita or guest suite without extending a central system
You are replacing a window AC unit and want a permanent, more efficient solution

What do homeowners ask about Mini-Split Install?

How much does a ductless mini-split cost installed in San Diego?

A single-zone ductless mini-split typically runs $3,500-$7,000 installed, depending on the BTU capacity, SEER rating, and line set length. Your crew gives you the written price after the on-site estimate.

Do I need a permit for a mini-split installation in San Diego?

Yes. Mini-split installation requires a mechanical permit in San Diego County, and the electrical circuit work requires a separate electrical permit. Your crew handles both when the scope calls for them.

Can a mini-split heat as well as cool?

Yes. A heat pump mini-split moves heat in both directions. In San Diego's mild climate it heats efficiently through most of the winter without backup heat, which is one reason they're so popular here.

Will a mini-split work in the coastal marine layer?

Yes, but salt air accelerates outdoor coil corrosion. Your crew selects units with coated coils and stainless fasteners for coastal installations in communities like Encinitas, Carlsbad, and La Jolla.

How long does a ductless mini-split last?

A well-maintained mini-split lasts 15-20 years. Annual maintenance, which includes coil cleaning and refrigerant checks, is the biggest factor in reaching that lifespan.