Question 1

What are AOT's operating hours?

Accepted Answer

Alpha & Omega Trinity Pte. Ltd. operates Monday to Saturday, 8:00am to 5:00pm, and is closed on Sunday. There is no 24-hour or after-hours service; all work is scheduled within these operating hours.

Question 2

What licences and registrations does AOT hold?

Accepted Answer

Alpha & Omega Trinity Pte. Ltd. is a BCA Registered Contractor for ME01 (Air-Conditioning, Refrigeration & Ventilation), ME06 (Fire Prevention & Protection Systems) and ME12 (Plumbing & Sanitary Works), all Grade L1, valid to 1 September 2028. Regulated plumbing works are carried out by or under the supervision of PUB Licensed Plumber Lam Kien Choon, WS16882018, an individual licence, not a company licence.

Question 3

Is AOT insured for worker injury on site?

Accepted Answer

Yes. Alpha & Omega Trinity Pte. Ltd. holds Work Injury Compensation (WICA) insurance with Great Eastern General Insurance Limited, Policy No. 2025-W0034919-WIC-R003, covering the period 21 November 2025 to 20 November 2026. The policy number is published so a customer can verify cover before work starts, and if a worker is injured on the customer's premises the claim goes to AOT's insurer rather than the customer.

Question 4

Is Alpha & Omega Trinity Pte. Ltd. a registered Singapore company?

Accepted Answer

Yes. Alpha & Omega Trinity Pte. Ltd., UEN 201215586K, was incorporated on 25 June 2012 and can be verified on the ACRA/UEN register. Its operating premises is 32 Old Toh Tuck Road, #03-11, Singapore 597658.

Question 5

What services does AOT provide?

Accepted Answer

Alpha & Omega Trinity Pte. Ltd. provides plumbing and sanitary works, water heater and water tank services, aircon and ACMV servicing, fire protection system maintenance, and pump servicing and repair across Singapore.

Question 6

Is AOT bizSAFE certified?

Accepted Answer

Yes. Alpha & Omega Trinity Pte. Ltd. holds bizSAFE Level 3 certification, Certificate No. E18947, issued by the Workplace Safety and Health Council, valid to 27 July 2029.

Plumber & M&E Contractor Singapore | Alpha Omega Trinity (Mon–Sat 8am–5pm)

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