How Much It Costs to Install Electricity, Water, and Gas When Building a House in Singapore: Rough Calculations and Hidden Costs

Introduction

Building a new house in Singapore involves more than just construction materials and labour. Essential utilities — electricity, water, and gas — need to be installed and connected properly before move-in. Understanding the costs involved is critical for budgeting and project planning. This article provides a detailed overview of the typical installation costs, regulatory requirements, and common hidden expenses associated with utility hookups in Singapore as of 2024.

Electricity Installation Costs

Basic Connection Fee

In Singapore, SP Group is the main electricity distributor. For new developments, installation typically involves laying the electrical wiring within the property and connecting to the public supply. As a rule, developers or homeowners must submit an application through SP Group to initiate service connection.

• Application Fee: Approximately S$40 to S$100 depending on the complexity of the supply requested.
• Service Connection Deposit: This varies and is refundable; it can range from S$200 to S$500.

Installation and Wiring Costs

Electrical wiring and switchgear installation inside the house depend on the size and specifications of the home. Professional electricians charge between S$4,000 to S$10,000 for a typical sized house (e.g., 150 to 250 sqm).

• The cost includes internal wiring, circuit breakers, sockets, and lighting points.
• More elaborate setups with smart home integration or heavy machinery require additional budget.

Meter Installation

SP Group installs the electricity meter once wiring meets standards; meter costs and installation services are factored into the service connection fees.

Water Connection Costs

Basic Connection Fees

The Public Utilities Board (PUB) manages water supply in Singapore. Applying for water connection in a new house follows a formal process requiring submission of plans and payment of prescribed fees.

• Processing Fee: Usually between S$50-S$150.
• Meter Installation Deposit: From S$200 to S$600, refundable upon disconnection or when the service is terminated.

Internal Plumbing and Installation

Internal plumbing costs vary according to house size and design complexity.

• Typical plumbing costs range from S$5,000 to S$15,000 including piping, bathroom fittings, and kitchen fixtures.
• Additional features such as water heaters or water softeners increase costs.

Water Meter Installation

PUB installs the water meter; the meter and installation costs are included in deposit fees charged during application. It is required that plumbing and piping conform to PUB’s standards.

Gas Installation Costs

Regulatory Overview

City Gas Pte Ltd supplies piped natural gas to residential homes in Singapore. Before installation, applications must comply with guidelines stipulated by the Energy Market Authority (EMA) and Fire Safety regulations.

Connection Fees

• Security Deposit: Around S$200 to S$300 (refundable).
• Connection Charge: Typically ranges between S$600 and S$1,200 depending on house location and distance from the main line.

Internal Gas Piping and Installation

Homeowners need to install certified piping and appliances that comply with strict safety standards.

• Professional installation normally costs between S$1,500 and S$3,000.
• This cost includes piping, regulators, and installation of appliances.
• Additional charges apply for complex layouts or additional appliances such as gas water heaters.

Hidden and Additional Costs to Consider

Permit and Inspection Fees

Both PUB and SP Group require permits, certification, and inspections, which may involve additional fees depending on the project scope.

Trench and Roadwork Charges

If utilities need to be extended under public roads or common areas, there are charges for trenching, reinstatement, and traffic management which can amount to several thousand dollars.

Upgrading Existing Infrastructure

Older sites may require upgrading of cables, pipes, or meters, which increases costs and requires coordination with SP Group or PUB.

Professional Consultancy

Engaging an electrical or mechanical engineer to design utility layouts or supervise installations typically costs 5-10% of the installation budget but assists in regulatory compliance and long-term efficiency.

Delays and Reworks

Improper planning or failure to comply with technical standards can lead to costly reworks or delayed approval, impacting overall project timeline and cost.

Summary of Estimated Cost Ranges

These estimates provide a rough guide. Actual costs depend on project size, scope, and site conditions.

Where to Verify Official Information

• SP Group – Electricity supply application and tariff details.
• Public Utilities Board (PUB) – Water service connection and regulations.
• City Gas Pte Ltd – Gas connection procedures and safety guidelines.
• Energy Market Authority (EMA) – Regulatory framework for energy supply.

Conclusion

Understanding the costs and requirements for installing electricity, water, and gas during house construction in Singapore helps avoid budget overruns and delays. While utility fees and installation charges constitute a significant portion of expenses, hidden costs such as permits, roadworks, and upgrading existing infrastructure must be factored in. Consulting with certified professionals and liaising early with relevant suppliers like SP Group, PUB, and City Gas will ease the process and ensure compliance with all safety and technical standards.

Disclaimer: This site is an informational blog and is not affiliated with the Government of Singapore.

Disclaimer: This website is an independent informational blog and is NOT affiliated, associated, authorized, endorsed by, or in any way officially connected with the Government of Singapore, SP Group, HDB, CPF Board, or any of their subsidiaries or affiliates. All content is for educational purposes only. Please verify all information with official government sources at gov.sg.