24-Hour Plumber & M&E Contractor Singapore | Alpha Omega Trinity

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Home / Services / PUB Submission

Why PUB Submission Matters For Plumbing Works in Singapore

Not every plumbing job is just a handyman task. Some regulated water service and sanitary plumbing works must be handled by a PUB Licensed Plumber, with the right notification or submission where required.

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Quick Message to Customers
If your job involves water pipes, toilet bowl relocation, sanitary piping, water tank, pump system, or new plumbing layout, check first before engaging anyone.

CUSTOMER MUST KNOW

When Customers Should Be More Careful

1

Regulated Plumbing Work

Works involving water service pipes, tanks, fittings, sanitary discharge pipes or sanitary appliances may fall under regulated plumbing work.

2

Licensed Plumber Requirement

PUB states regulated water service and sanitary plumbing works must be carried out by Licensed Plumbers, except simple works allowed for handymen.

3

Submission Responsibility

Licensed Plumbers are responsible for lodging necessary regulatory submissions to PUB for applicable works.

CUSTOMER MUST KNOW

When Customers Should Be More Careful

Handyman May Handle Simple Works

Examples can include basic replacement/removal of taps, mixers, shower hoses, flexible hoses, selected cistern parts, floor trap covers, and clearing certain blockages.

Licensed Plumber For Regulated Works

Jobs involving water service plumbing, sanitary piping, toilet bowl relocation, pipe alteration, tanks, pumps, or layout changes may require a Licensed Plumber and proper submission.

Common Scenarios

Ask Before You Proceed If Your Job Looks Like This

Toilet Bowl Relocation

Moving a toilet bowl can involve sanitary discharge piping and should be checked for regulated work requirements.

New Water Pipe Layout

Adding, altering or replacing water service pipes may require a Licensed Plumber to handle the job properly.

Water Tank or Pump System

Works involving tanks, pumping equipment or storage systems may need additional professional input depending on scope.

Commercial Plumbing Works

Shops, offices, F&B units and industrial premises should confirm compliance requirements before starting plumbing changes.

Sanitary Pipe Changes

Changing discharge pipes, floor trap connections or sanitary appliance layout should be reviewed before engaging a worker.

Unsure If It Is Simple?

Send photos and scope details to AOT. We can advise whether it looks like simple work or needs licensed review.

AOT Process

How We Help Customers Check First

1

Send Photos And Scope

Customer sends photos, property type and what they want to change or repair.

2

Initial Compliance Review

AOT checks whether the job looks like simple work or regulated plumbing work.

3

Quote And Next Step

Customer receives practical advice, scope clarification and estimated next action.

3

Licensed Work Where Needed

For applicable regulated works, the proper licensed route and submission requirement can be handled.

FAQ

Electrical Installation FAQs

Do all plumbing works need PUB submission?

No. PUB lists simple plumbing works that handymen may carry out. Regulated water service and sanitary plumbing works must be handled by Licensed Plumbers.

Why should I engage a PUB Licensed Plumber?

Licensed Plumbers are trained and licensed to meet PUB technical, safety, water quality and water conservation requirements for regulated works.

Can a handyman replace a tap?

PUB lists certain simple works such as replacing or removing taps or mixers as works handymen may carry out. Bigger pipe, tank, pump or sanitary works should be checked first.

Can AOT advise before I start?

Yes. Send photos and a short description on WhatsApp so the team can understand the scope and advise the next step.

Official References

Source Links For Customer Trust

Under the Public Utilities Water Supply Regulations, anyone who wishes to carry out water service work must engage a water service worker of the appropriate class. The worker must also notify PUB before carrying out the work where required. Failure to comply may be an offence.

The Straits Times reported that two companies and one worker were fined a total of $8,400 for illegal plumbing works. One case involved a worker without a water service plumber licence altering a potable water pipe and installing a tap. This reminds property owners that cheap or convenient work is not always compliant.

Before starting plumbing works, check whether your job is simple handyman work or regulated plumbing work that requires a PUB Licensed Plumber.

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