Mini-Split Installation

A ductless mini-split is the right answer when adding a bedroom, finishing a garage, conditioning a casita, or fixing a single hot room that the central system has never been able to reach. Instead of tearing into walls and ceilings to extend ductwork — which often costs more than the equipment itself and disturbs insulation that has no business being disturbed in a 110-degree desert — a mini-split delivers conditioned air directly to the space that needs it. One outdoor unit feeds one or several indoor heads, each with its own thermostat, each running only when its zone calls for it.

Constant Air Balancing and Services has installed mini-split systems across Las Vegas for room additions, ADUs, sunrooms, garage workshops, and second-story bedrooms that the original HVAC system was never sized to cool. We are NCI-certified, which matters for ductless because the entire performance of a mini-split lives in the line set, the refrigerant charge, and the indoor unit placement — three things most generic HVAC contractors guess at. We measure superheat and subcool on every install, verify airflow at each indoor head, and document the commissioning data so you have proof the system is performing at the rated capacity printed on the equipment label.

We install single-zone systems for one room, dual-zone for room-pairs (e.g., master bedroom + adjacent office), and multi-zone systems with up to eight indoor heads served by a single outdoor condenser. Brand selection matters in the Las Vegas climate — we recommend and stock Mitsubishi, Daikin, LG, and Fujitsu equipment because these manufacturers have proven inverter compressors that handle the desert heat without short-cycling. Cheap off-brand mini-splits routinely fail in Vegas summers; the SEER rating on the box does not save you when the compressor cuts out at 115°F outdoor.

The difference between a mini-split that just runs and a mini-split that actually keeps you comfortable in August is the install. We perform a Manual J load calculation for the space, size the outdoor unit accordingly (oversizing causes humidity problems, undersizing causes runtime problems), route the line set without unnecessary bends, vacuum and pressure-test the refrigerant lines, and verify performance at handover. Every install includes a written commissioning report with refrigerant pressures, supply temperatures, airflow at each head, and electrical draw — the same documentation we provide on every commercial HVAC service call.