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Singapore's heat and humidity mean your air conditioner works harder than almost anywhere else in the world. Without regular servicing, your aircon unit can develop foul smells, ice up, leak water, or fail entirely — often at the worst possible time. Alpha & Omega Trinity (AOT) provides comprehensive aircon servicing across Singapore for all major brands, covering HDB flats, condominiums, landed properties, offices, and shophouses.
With over 5,000 projects completed since 2016, our experienced technicians know Singapore's aircon systems inside out. We service all brands — Mitsubishi, Daikin, Panasonic, LG, Samsung, Fujitsu, Sharp, and more.
📞 Call: +65 6816 2462 | 💬 WhatsApp: +65 8151 8857
Our standard service includes cleaning the air filters, evaporator coil, drainage tray, and fan blade. We also check refrigerant levels, test the thermostat, and inspect electrical connections. This service is recommended every 3 months for Singapore homes due to the high usage environment.
A chemical wash is a thorough deep-clean of your aircon's internal components using a specially formulated cleaning solution. It removes mould, bacteria, mineral deposits, and stubborn dirt that a standard cleaning cannot reach. We recommend a chemical wash once a year or when you notice bad smells, reduced airflow, or the unit blowing warm air despite being set to cool.
The process involves:
A full chemical overhaul goes further than a chemical wash — it includes dismantling and soaking the fan coil, clearing the condensate drain line, and inspecting the outdoor compressor unit. This is ideal for heavily soiled units or units that have not been serviced in over a year.
If your aircon is not cooling effectively despite being clean, the refrigerant (gas) may be low — often caused by a slow leak. Our technicians perform a gas top-up using the correct refrigerant type (R22, R32, or R410A depending on your unit). We also check and advise on any leak points.
Not cooling? Leaking water? Making strange noises? Showing an error code? AOT's technicians diagnose and repair all common aircon faults including PCB board issues, compressor problems, fan motor failures, and drainage blockages.
If you notice any of the above, contact AOT immediately. Early servicing prevents costly compressor damage.
We offer bundle discounts for multiple units. WhatsApp us for a custom quote.
AOT services all residential and light commercial aircon brands available in Singapore:
Mitsubishi Electric · Daikin · Panasonic · LG · Samsung · Fujitsu · Sharp · Midea · Carrier · York · Toshiba · Hitachi · Gree · Haier · System 1, 2, 3, 4
Singapore's tropical climate means aircons run almost continuously — sometimes 8–12 hours a day. The high humidity promotes mould and bacteria growth inside the units. Dust, construction particles, and outdoor pollutants accumulate on coils and filters. NEA guidelines recommend regular maintenance to maintain indoor air quality and energy efficiency.
A well-maintained aircon unit uses up to 30% less electricity than a neglected one — saving you significantly on your monthly SP Services bill.
"AOT did a chemical wash on my Daikin System 3. The difference was immediate — much colder air and no more musty smell. Technician was punctual and professional." — Mr. Ravi, Woodlands Condo
"I had a stubborn water leaking issue that two other companies couldn't fix. AOT identified a blocked drain pipe and cleared it on the spot. Excellent service!" — Mrs. Lim Bee Hwa, Jurong HDB
"Signed up for AOT's annual contract for my 4 units. The technicians are thorough, on time, and always explain what they are doing. Great value for money." — Mr. Jason Chen, Bishan
For residential units in Singapore, standard cleaning every 3 months is recommended. A full chemical wash once a year helps maintain performance. Units in dusty areas or under heavy use may need more frequent servicing.
Standard servicing is a surface clean of filters and the visible coil. A chemical wash uses chemical solution to deep-clean the entire evaporator coil, drain pan, and fan — removing mould, scale, and biofilm that standard cleaning cannot remove.
Yes, AOT operates on weekdays and weekends. We also accommodate urgent bookings. Contact us via WhatsApp to schedule a convenient time slot.
If cooling is still poor after a clean, the likely causes are low refrigerant gas, a faulty compressor, or a refrigerant leak. Our technicians will assess and advise on the most cost-effective solution.
Yes, AOT offers annual maintenance contracts that include 4 standard services per year per unit, with priority booking and discounted rates for additional services. WhatsApp us for a tailored quote.
Published by the AOT Service Team — our licensed technicians have served 5,000+ Singapore homes and businesses since 2016.
📞 Call: +65 6816 2462 | 💬 WhatsApp: +65 8151 8857 | ✉️
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Whether you're upgrading your water heater, planning a new installation, or need reliable maintenance, AO is here to help. Reach out today and experience professional service backed by experience, certification, and long-term support.
At AO, we don’t just install water heaters — we build long-term relationships based on trust, reliability, and service that lasts. From the very first consultation to professional installation and years of aftercare, we’re with you every step of the way.
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