Single and multi-zone ductless systems, the most popular way to cool Hawaii homes without ductwork: installation, repair, cleaning and error-code diagnostics. UST Air Conditioning provides mini-split service throughout Oahu, Maui, Kauai and the Big Island with same-day appointments and 24/7 emergency dispatch.
Hawaii is hard on heating and cooling equipment. Salt-laden trade winds corrode coils and electrical connections, year-round humidity clogs drains and feeds mold, and vog on the Big Island loads filters and coils with fine particulate. Every mini-split service call we run accounts for those conditions, with corrosion-resistant parts and a written report of what we found.
Honest people. I was told by another company I needed a new system. UST found a refrigerant leak at a fitting, fixed it and charged the system properly. That was two summers ago and it still runs great.
Kiana P., HawaiiVery thorough. The technician explained what he was checking at each step and left a written report with photos. Signed up for the maintenance plan on the spot.
Mark G., HawaiiThe technician found that our ducts were leaking into the attic, which explained the hot back bedroom. Sealing them made a bigger difference than I expected and our bill dropped noticeably.
Kawika O., HawaiiAll major brands including Mitsubishi, Daikin, Fujitsu, LG, Gree, Carrier and Panasonic.
Typically up to five indoor heads on a single condenser, depending on capacity. We size each head to the room.
Mold and bacteria on the coil and blower wheel, common in Hawaii humidity. A deep clean removes it and improves airflow.
Choose your city for local mini-split service details, nearby coverage and a direct line.
Live dispatchers 24/7. Same-day service in most areas. Flat-rate pricing before work begins.