In Singapore’s construction industry, temporary works are a critical part of keeping worksites safe and compliant. Whether it’s hoardings around a site, scaffolding for high-rise access, or excavation and earth retaining systems, these structures must be properly designed and endorsed by a Professional Engineer (PE).

In this article, we break down what temporary works PE endorsement means, why it’s required, and the typical scenarios where you’ll need one.

What Are Temporary Works?

Temporary works refer to structures or systems that are not part of the permanent building or infrastructure but are necessary to support construction activities. They are often dismantled once construction is complete, but during their use, they must be safe and stable.

Examples include:

• Hoardings and site barriers

• Scaffolding and formwork

• Excavation support systems (ERSS)

• Shoring, strutting, and retaining walls

• Temporary access platforms or staging

Why Do Temporary Works Require PE Endorsement?

In Singapore, PE endorsement is mandated by the Building Control Regulations and relevant agencies (e.g. BCA, MOM, LTA). The reason is simple: temporary works often pose significant safety risks if not designed and installed properly.

A PE endorsement ensures:

• The design complies with safety standards

• Loads and stresses are properly calculated

• The installation method is safe

• Public and worker safety is not compromised

Without PE endorsement, contractors risk stop-work orders, penalties, or accidents on site.

Common Types of Temporary Works Requiring PE Endorsement

1. Hoardings and Site Barriers

• Required to enclose construction sites for safety and security

• Must withstand wind loads and impact loads

• PE endorsement ensures the hoarding won’t collapse and complies with BCA guidelines

2. Scaffolding and Formwork

• Used for access and structural support during construction

• Tall or complex scaffolding systems require PE design and endorsement

• Ensures stability under worker loads, equipment, and materials

3. Excavation and ERSS (Earth Retaining & Stabilizing Structures)

• Excavation deeper than 1.5m usually requires PE-designed support

• Includes sheet piles, struts, and retaining walls

• Prevents soil collapse and protects adjacent properties and utilities

Typical Cost of Temporary Works PE Endorsement

The fees for temporary works endorsement vary depending on complexity. Approximate ranges in Singapore are:

⚠️ Note: Actual fees depend on design complexity, scope of calculations, site inspections, and urgency of submission.

Common Mistakes Leading to Rejection

Many contractors face delays in approval due to avoidable mistakes in PE submissions:

• Incomplete or inaccurate drawings

• No load calculations provided

• Missing method statements for installation

• Submissions not aligned with MOM or BCA requirements

Engaging a PE early in the project avoids these costly rejections.

Benefits of Engaging the Right PE

Choosing an experienced PE consultancy for temporary works endorsement provides:

• Faster approvals from authorities

• Proper risk assessment and method statements

• Reduced chances of project delays

• Compliance with Singapore safety regulations

Need a Temporary Works PE Endorsement in Singapore?

At AEC Technical Advisory, our registered Professional Engineers provide:

• Hoarding, scaffolding, and ERSS design endorsement

• Authority submissions (BCA, MOM, LTA)

• Fast turnaround and practical solutions for contractors

👉 Contact us today for a quotation on temporary works PE endorsement in Singapore.