End-to-end service
End-to-End Service
From consultation to maintenance, we handle every step — so you never have to worry about coordinating multiple contractors.
Experienced Professionals
Experienced Professionals
Our licensed technicians bring years of hands-on experience in plumbing, electrical, aircon, and water heater systems across Singapore.
Long-Term Support
Long-Term Support
We don't just fix and forget. AOT provides ongoing maintenance plans and responsive after-service support you can count on.
About Us
We're with You
All The Way
At AOT, 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.
Reliable Hot Water. Professional Installation. Long-Term Support.
Storage Water Heater
Reliable, Safe and Built to Last
A storage water heater is an essential home appliance that heats and stores hot water in an insulated tank — providing consistent water pressure, stable temperature, and ready-to-use hot water whenever you need it.
At AOT, we specialize in professional installation and long-term maintenance of electric storage water heaters for HDBs, condos, landed homes, and commercial units across Singapore.
More Than Just Water Heaters
Multi-Trade Services You Can Rely On
AOT also offers expert plumbing services, pump systems, pressure vessels, air conditioning maintenance, and general upkeep like minor ceiling works — all delivered with the same reliability and care we’re known for.
Plumbing Services
Expert Installation & Repairs for Every Pipe and Fixture
Pump & Water System Services
Clean, Efficient, and Well-Maintained Systems
Air Conditioning & Cooling Services
Keep Your Environment Cool and Comfortable
General Maintenance
Small Fixes, Big Difference
Industries We Serve
Trusted Solutions Across Residential, Commercial, and Industrial Spaces
At AOT, we provide reliable water heater installation, plumbing, and maintenance services tailored to the needs of various industries across Singapore. Whether it’s a home, office, or facility with complex requirements, we deliver expert support that meets both functional and safety standards.
Our Projects & Portfolio
Trusted Work. Proven Results.
From residential flats to commercial buildings, our work speaks for itself. Explore our completed projects across Singapore to see how AOT delivers quality, safety, and long-term performance — every time.
What Our Customers Say
Real Experiences. Long-Term Trust.
At AOT, we pride ourselves on building lasting relationships with every client. Here’s what homeowners, landlords, and property managers have to say about working with us.
Latest News & Trends
Insights That Keep You Informed & Ahead
Stay up to date with the latest in water heating technology, home maintenance tips, and service updates. From product comparisons to energy-saving advice, we share what matters most — helping you make informed decisions for a safer, more efficient home.
Why Your Heater Blows Cold Air After 10 Seconds — Element Failure
