Proper leak detection, repair and weighing in the correct refrigerant charge for R-410A, R-32 and older R-22 systems. UST Air Conditioning provides AC refrigerant recharge 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 AC refrigerant recharge call we run accounts for those conditions, with corrosion-resistant parts and a written report of what we found.
Called three companies for an installation quote. UST was not the cheapest but they were the only ones who measured the house and did a load calculation. The system is perfectly sized.
Leilani K., HawaiiI called at 10 pm because the unit was making a horrible grinding noise. They were here by 7 the next morning and the fan motor was replaced before lunch. Great communication the whole time.
Steven K., HawaiiResponsive and polite from the first call to the final handshake. The AC not cooling problem was a frozen coil from a dirty filter and airflow issue, all sorted the same day.
Michael S., HawaiiThe nameplate lists the factory charge; line length changes it. We weigh the charge in and verify it by pressures and temperatures rather than guessing.
It is no longer produced and is expensive. For older R-22 systems we often recommend budgeting for replacement rather than repeated recharges.
Systems are sealed; loss means a leak, most often at the evaporator coil, a fitting or a corroded line set near the ocean.
Choose your city for local AC refrigerant recharge details, nearby coverage and a direct line.
Live dispatchers 24/7. Same-day service in most areas. Flat-rate pricing before work begins.