Ductless Mini-Split Systems

For the Rooms Your Main System Was Never Built to Cool

Garages converted to living space, casitas, sunrooms, and additions built after the original ductwork was installed almost always run hot, because the main system was never sized or routed to reach them. Running new ductwork into these spaces is often expensive or impossible depending on the layout. A ductless mini-split puts a dedicated indoor unit in the space with its own thermostat, connected to an outdoor condenser by a small refrigerant line and a hole through the wall, no ductwork required.

How Sizing and Zoning Works

Mini-splits are sized room by room rather than for the whole house, so an oversized unit in a small casita will cycle too often and leave the room clammy, while an undersized one will run nonstop on a summer afternoon without keeping up. We calculate the load for each space based on square footage, window exposure, insulation, and how the room is used before recommending equipment. Single-zone systems cover one room with one outdoor unit, while multi-zone systems let a compatible outdoor condenser serve several indoor units, each with independent temperature control, which works well for additions with more than one room.

Installation and What to Expect Over Time

Installation involves mounting the indoor head, running the line set through the wall, setting the outdoor condenser on a pad, and testing the refrigerant charge. New AC installations are permitted and go through city inspection. Indoor unit placement also needs space for service access and a drain route that will carry condensation away. Keeping the indoor filter clean matters even more on a mini-split than a central system, since these filters are smaller and clog faster with household dust.

We repair and maintain all major brands of ductless equipment, so if a previous installer put in a system that is now acting up, we can still service it. Financing is available through home-service lenders for new installations, including 0% promotional options for qualifying applicants with approved credit, and most applications are decided within minutes so we can schedule the install as soon as you are approved. If you already have central air and just need one stubborn room handled, a mini-split is often less disruptive and less expensive than extending ductwork across the attic.