Whether you’re upgrading your old HDB flat or planning a major renovation, electrical rewiring is one of the most critical components to consider. Faulty or outdated wiring can be dangerous—and in many cases, it doesn’t meet the modern power demands of today’s homes.
In Singapore, the cost of rewiring a home can vary significantly depending on the property type, wiring complexity, number of power points, and licensed electrician rates. In this guide, we’ll break down the costs, influencing factors, and must-know tips to help you plan your rewiring project confidently and safely.
Why Electrical Rewiring is Necessary
Before we dive into costs, it’s important to understand why rewiring is often necessary:
- Old or deteriorated wiring: Most older flats in Singapore (especially built before 1990) were designed to handle far fewer appliances than modern households now use.
- Renovations: If you’re upgrading your kitchen or adding new air-conditioners, the existing wiring may not support the electrical load.
- Safety concerns: Faulty wiring is one of the leading causes of electrical fires and circuit trips in homes.
- Resale value: Buyers prefer homes with updated electrical systems to avoid future renovation costs.
If your home has flickering lights, frequent breaker trips, or outlets that spark—it’s time to consider rewiring.
How Much Does Electrical Rewiring Cost in Singapore?
Electrical rewiring costs in Singapore generally range from $1,500 to $8,000, depending on the type of property, the scope of work, and the number of power and lighting points.
Rewiring Cost by Property Type (Estimated)
| Property Type | Estimated Rewiring Cost |
|---|---|
| 1-Room HDB Flat | $1,500 – $2,200 |
| 3-Room HDB Flat | $2,200 – $3,000 |
| 4-Room HDB Flat | $2,800 – $3,800 |
| 5-Room HDB Flat | $3,500 – $4,800 |
| Executive HDB Flat | $4,000 – $5,500 |
| Condo (800–1200 sqft) | $3,000 – $5,000 |
| Landed Property | $6,000 – $10,000+ |
Note: These are ballpark figures. Final costs can differ depending on the complexity and materials used.
Factors That Affect Electrical Rewiring Costs
Let’s take a closer look at what impacts your rewiring budget:
1. Property Size & Layout
Naturally, the larger the property, the more wiring is needed. Homes with complex layouts (like split-levels or attics) can also take longer to rewire, increasing labour time and cost.
2. Number of Points (Lighting & Power)
Most electricians charge per point:
- Lighting point: ~$45 – $70 each
- 13A power point (single socket): ~$55 – $90 each
- Water heater / aircon point: ~$120 – $180 each
- TV or LAN point: ~$60 – $120 each
You’ll also need to factor in:
- Switches and socket outlet installations
- Upgrading of the distribution board (DB box) if needed
3. Surface vs Concealed Wiring
- Surface wiring: More affordable and quicker to install, but may not look neat.
- Concealed wiring: Wires are embedded inside walls or ceilings for a cleaner finish. However, it involves hacking and repair works, making it more expensive.
Concealed wiring is usually preferred during full renovations, while surface wiring is chosen for minor upgrades or temporary fixes.
4. Labour & Licensing
EMA requires all electrical work in Singapore to be performed by a licensed electrician. Highly experienced electricians or companies may charge more, but they ensure safety, compliance, and proper documentation.
5. Additional Fixtures & Upgrades
Your final cost may also include:
- Replacement of main switches and circuit breakers
- Installation of earth leakage circuit breakers (ELCBs)
- LED downlight installation
- Smart home integration (e.g., WiFi switches, app-based control)
Do I Need a Permit for Rewiring in Singapore?
Yes. All major electrical works in Singapore require submission to the Energy Market Authority (EMA). When you engage a licensed electrical worker (LEW), they will:
- Submit the necessary notification
- Carry out testing and inspection
- Submit the Certificate of Compliance (COC) after work is complete
Working without a permit can result in penalties and insurance complications—so always hire a licensed electrician.
How to Choose the Right Electrician for Rewiring
Check for EMA Licensing
Make sure your electrician is EMA-licensed. This ensures they are trained in safety protocols and electrical codes in Singapore.
Ask for Transparent Pricing
Request a written quotation detailing:
- Number of power/light points
- DB box upgrades
- Materials used (brand of cables, sockets, etc.)
- Hacking or patching costs
Read Reviews & Portfolio
Check their previous projects and online reviews on platforms like Google or Hometrust.
💡 Tips to Reduce Rewiring Costs
- Bundle it with renovation: Rewiring during renovations saves on hacking/restoration.
- Plan point locations in advance: Know where you want sockets, lights, and switches to avoid changes mid-way.
- Use energy-efficient LED lighting: They last longer and reduce future load on your system.
- Avoid unnecessary smart systems if you’re on a budget—they add complexity and cost.
When Should You Rewire Your Home?
Here are some signs it’s time to consider rewiring:
- Home is 20+ years old
- Frequent breaker trips
- Burnt smell or discoloured outlets
- Flickering lights or power surges
- Buzzing sounds from switches
Even if you’re not experiencing these issues, rewiring is often recommended when doing:
- Kitchen renovations
- Toilet overhauls
- Whole-house makeovers
Need Rewiring in Singapore? We Can Help
At Electrical Services Singapore, we specialize in safe, licensed, and affordable rewiring services for HDB flats, condos, landed properties, and commercial units.
✔️ EMA-certified electricians
✔️ Transparent, itemized pricing
✔️ Full rewiring or partial upgrades
✔️ Distribution board replacement
✔️ Testing and certification provided
Contact us today for a free site visit and quotation. Whether you’re upgrading for safety or doing a full renovation, we ensure your home’s electrical system is future-ready.