Design and installation of complete heating and cooling systems for new construction, renovations and worn-out equipment replacement. UST Air Conditioning provides HVAC installation 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 HVAC installation call we run accounts for those conditions, with corrosion-resistant parts and a written report of what we found.
Heat pump stopped heating on a cold Volcano night. The technician walked me through a reset on the phone first, then came out the next day to replace the defrost board. Really appreciated not being charged for an unnecessary trip.
Ashley F., HawaiiHonest 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.
Noelani A., HawaiiWe manage several vacation rentals and needed a company that would coordinate with guests and send invoices to us. UST has been reliable, on time and fair on price every single call.
Leilani K., HawaiiIt ranges widely by size and type. A single-zone mini-split is the most affordable; a whole-home ducted heat pump is the largest investment. We give fixed written quotes.
With annual maintenance, 12 to 15 years even in salt air; coated coils help coastal homes reach the upper end.
Yes, we handle county permitting and inspections as part of the installation.
Choose your city for local HVAC installation details, nearby coverage and a direct line.
Live dispatchers 24/7. Same-day service in most areas. Flat-rate pricing before work begins.