How much does electrical rewiring cost in Singapore? 2026 price guide by flat type
If you're renovating an older HDB flat or resale condo, rewiring is almost always one of the biggest line items on the quote — and one of the hardest to budget for, because the final number depends on things you can't see until a wall is opened up. This guide breaks down what actually drives the cost, realistic price ranges by flat type, and where homeowners typically get caught off guard.
What actually determines your rewiring quote
No two flats cost the same to rewire, even at the same size. The price you're quoted comes down to five factors:
Flat size and number of points. More rooms means more sockets, light points, and switch loops.
Concealed vs surface wiring. Concealed wiring (inside the wall, standard for most renovations) requires hacking and reinstatement, which pushes labour costs up significantly compared to surface trunking.
Condition of the existing wiring. If your current cabling is decades old, brittle, or previously modified by an unlicensed party, expect more remedial work before new circuits go in.
Distribution board (DB) condition. Older boards without RCD/RCCB protection usually need replacing as part of the job, not as an optional add-on.
Load requirements. Adding high-draw circuits for induction hobs, tankless water heaters, or multiple air-conditioning units adds dedicated wiring and, sometimes, a full loading upgrade with SP Group.
Estimated rewiring costs by flat type (2026)
These are general planning ranges based on current Singapore market rates. Treat them as a starting point for budgeting, not a fixed quote — your actual price depends on site conditions.
Flat type Estimated rewiring cost
3-room HDB S$1,800 – S$3,000
4-room HDB S$2,500 – S$4,000
5-room / Executive HDB S$2,500 – S$4,500
Condo (per unit, full scope) S$3,000 – S$8,000+
On top of the base rewiring scope, a few common add-ons are worth budgeting for separately:
DB box upgrade or replacement: roughly S$350 – S$1,200, depending on board size and breaker count
New 13A power point (concealed): roughly S$80 – S$160 per point
Aircon isolator installation: roughly S$120 – S$180 per unit
Why quotes vary so widely between electricians
If you've collected a few quotes and they don't line up, it's rarely random. The gap usually comes down to:
Scope clarity. A vague quote that just says "rewiring" hides a lot. A proper quote itemises point count, wiring method, DB scope, and testing.
Testing and certification. Legitimate rewiring work ends with SP Services testing and, for HDB flats, an endorsed CS/5H form submission. Quotes that skip this step are cutting a corner that shows up later as unexplained tripping.
Materials and brand. Approved brands like Schneider, Legrand, and Hager cost more upfront but tend to hold up better over the 20+ year lifespan you're paying for.
Licensing. Only an EMA Licensed Electrical Worker (LEW) can legally carry out and certify this work. A quote that comes in dramatically below market rate is worth double-checking — verify the LEW licence number on EMA's ELISE portal before signing anything.
When rewiring is worth it vs when it isn't
Not every flat needs a full rewire. As a general guide:
Full rewiring makes sense if your flat is 20+ years old, you're doing major renovation with hacking already planned, your DB box lacks RCD/RCCB protection, or you're seeing recurring faults (frequent trips, warm sockets, flickering lights).
Partial rewiring or point additions may be enough if your existing wiring is in reasonable condition and you're mainly adding capacity in specific areas — a kitchen island, a home office, additional aircon points.
A proper site inspection is the only way to know which category you're in. Guessing based on age alone can lead to either overspending on unnecessary work or underspending and inheriting the previous owner's wiring problems.
Getting an accurate quote
The fastest way to get a number you can actually plan around is to have a Licensed Electrical Worker assess your flat directly, rather than estimating from a floor plan alone. VMG Electrical's whole-house rewiring service covers full SS 638-compliant rewiring for HDB and condo units, including DB box upgrades, point planning, and SP Services testing coordination.
If you're not sure whether you need a full rewire or just want a second opinion on an existing quote, an electrical troubleshooting and inspection visit is usually the more cost-effective first step. And if your renovation timeline needs the paperwork side handled too, VMG Electrical also manages LEW licensing and endorsement submissions end-to-end.
For a quote based on your actual flat layout rather than general estimates, get in touch with VMG Electrical.
Prices in this guide are general market estimates for planning purposes only and are not a quotation. Final pricing depends on site inspection, scope, and material selection.