Need AC installation in Honolulu? UST Air Conditioning provides fast, affordable AC installation to homeowners and businesses in Honolulu and across Oahu, with 24/7 emergency response and up-front flat-rate pricing.
Whether you are in a single-family home, a condo with strict HOA access rules or a vacation rental with guests arriving, UST Air Conditioning coordinates the AC installation appointment with whoever needs to be involved and leaves the space clean.
Every AC installation visit in Honolulu starts with a full diagnostic and a written, flat-rate quote. You approve the price before any work begins, and if the numbers point toward replacement instead of repair we will show you both so the decision is yours.
Oahu's leeward side bakes from May through October, and the trade winds that keep Honolulu bearable also carry salt straight into outdoor condenser coils. Systems here work hard almost every day of the year, which is why we see so many worn capacitors, corroded contactors and refrigerant leaks at brazed joints.
Call (855) 459-5498 now for AC installation in Honolulu. We answer 24/7.
We had a salt-corroded outdoor unit that finally gave out. UST replaced it with a coated-coil model and explained how to hose it down monthly. Wish we had called them years ago.
Jennifer C., HonoluluDuct cleaning and sealing after our renovation. The dust problem is gone and the system is quieter. Crew was careful with the floors and furniture.
Mark G., HonoluluThe mini-split in our bedroom kept dripping down the wall. Two other companies never called back. UST came the next morning, cleared the drain, cleaned the coil and showed me photos of the mold they removed.
David W., HonoluluA single-zone mini-split is usually done in a day. A full central system with duct modifications typically takes one to two days.
It depends on square footage, insulation, window exposure and how much sun and humidity the home takes on. We measure instead of guessing, because an oversized unit short cycles and leaves the air clammy.
Yes, we work with financing partners so a new system can be paid monthly. Ask your comfort advisor for current options.
Yes. Mini-splits are our most requested installation on Oahu because they cool individual rooms efficiently without ductwork and many models also heat.
Most common repairs, such as capacitors, contactors, drain clearing and fan motors, fall in a modest flat-rate range that we quote before starting. Larger repairs like compressors or coils are priced against replacement so you can decide. There are no hidden fees.
Live dispatchers 24/7. Same-day service in most areas. Flat-rate pricing before work begins.