Everything you need to know before hiring an electrical contractor in Singapore — EMA licensing requirements, rewiring, power points, DB upgrades, what to ask, and why unlicensed work is a risk you cannot afford to take.
An electrical contractor handles all electrical works in a renovation — rewiring, adding power points, lighting circuits, distribution board (DB) upgrades, and aircon electrical trunking. Unlike every other trade in this guide, electrical work in Singapore is governed by legal licensing requirements, not just professional standards.
Only an EMA (Energy Market Authority) Licensed Electrical Worker (LEW) is legally permitted to carry out electrical installation work in Singapore. This isn’t a quality signal you can choose to prioritise or skip — it’s a legal requirement, and engaging an unlicensed electrician exposes you, the homeowner, to real consequences.
Electrical work is also uniquely unforgiving of shortcuts. Poor workmanship in cabinet fitting or tiling is usually visible and fixable. Poor electrical workmanship is invisible behind walls and ceilings until it causes a tripped circuit, overheating, or in worst cases, a fire.
All electrical installation work in Singapore homes must be carried out by an EMA-licensed electrical worker under the Electricity Act. Unlicensed electrical work is illegal, voids most home insurance policies, and cannot be inspected or approved by SP Group. This is one of the very few renovation trades where the legal requirement is completely non-negotiable.
Full or partial rewiring replaces ageing or inadequate wiring throughout a property. This is common in older resale HDB flats and landed properties where the existing wiring may not support modern electrical loads (aircon, induction hobs, multiple appliances) or may simply be near the end of its service life.
Adding new power points is one of the most common electrical requests in renovation — for kitchen appliances, home offices, entertainment systems, or simply because the original layout didn’t provide enough. Points can be added via concealed wall chasing (invisible, more expensive) or surface trunking (visible, more affordable).
New lighting points, cove lighting circuits, downlights, and smart lighting integration all fall under electrical scope. Cove lighting in particular is popular with false ceiling installations and requires coordination between the electrical and ceiling contractors.
The distribution board is the central point managing electrical load across your home. Adding significant new load — multiple aircon units, an induction hob, an EV charger — often requires a DB upgrade to safely handle the increased capacity. This is specialist work that absolutely requires an EMA-licensed electrician.
Electrical pricing is driven primarily by labour and licensing requirements rather than material cost — a fundamentally different cost structure from cabinet or flooring trades.
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WORK TYPE
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COMPLEXITY
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LICENSING REQUIREMENT
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TYPICAL PRICE RANGE
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|---|---|---|---|
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ADDITIONAL POWER POINT (SURFACE TRUNKING)
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Low — visible trunking, minimal wall work
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EMA LEW required
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$80–$140 / point
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ADDITIONAL POWER POINT (CONCEALED)
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Medium — wall chasing and patching required
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EMA LEW required
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$120–$200 / point
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NEW LIGHTING POINT / CIRCUIT
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Medium — ceiling coordination often needed
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EMA LEW required
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$120–$250 / point
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DB UPGRADE
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High — load calculation and safety compliance
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EMA LEW required, SP Group inspection
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$600–$1,800
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FULL REWIRE (HDB 4-ROOM)
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High — full property scope, multi-day works
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EMA LEW required
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$2,500–$5,500
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Ask every electrical contractor for their EMA Licensed Electrical Worker number and verify it directly at mylicence.ema.gov.sg. This takes two minutes and is the single most important check in this entire trade. An unlicensed electrician working in your home is a legal and safety liability that falls on you as the homeowner.
Because electrical work is licensed and safety-critical, these questions carry more weight than in almost any other trade. A hesitant or evasive answer to the licensing question alone should end the conversation.
This is non-negotiable. Verify it at mylicence.ema.gov.sg before any work begins — not after.
DB upgrades and significant load additions typically require inspection. Confirm this is planned and included.
Electrical quotes should specify exactly what is being added and where, not a vague lump sum.
Adding significant load to an undersized DB is a fire risk. A competent electrician will assess this before quoting.
Established brands (e.g. Schneider, ABB, ChinT) with proper certification matter for long-term safety and reliability.
This affects both cost and finish. Confirm which method applies to each point before pricing is finalised.
Workmanship warranty should be documented in writing, separate from any product/hardware warranty.
Electrical work often needs to happen before ceiling and cabinet installation — sequencing matters.
A clear, committed after-sales response process is essential for a trade where faults are safety issues, not cosmetic ones.
Electrical work is largely invisible once complete — references and reputation matter more here than visual portfolio.
An electrical quote should be precise about scope — exactly how many points, where, and what type of circuit — because ambiguity in electrical scope creates real safety and cost risk.
EMA licence number stated on the quote or invoice — a legitimate electrical contractor will include this without being asked
Exact number and location of points itemised — not “additional power points” as a vague lump-sum item
Cable and breaker brand specified — should be named, not left generic
DB assessment and upgrade need stated explicitly — confirm whether your existing DB can handle the additional load
SP Group inspection included if required — for DB upgrades and significant load additions
Wall patching and finishing included — concealed wiring requires wall chasing and subsequent patching/painting
Warranty terms in writing — workmanship warranty duration and what it covers
This is an immediate dealbreaker, not a negotiating point. Unlicensed electrical work is illegal in Singapore and puts you at direct legal and safety risk.
Adding multiple aircon units or high-draw appliances without assessing whether the DB can handle it is a genuine fire risk.
Electrical scope should be precise. A vague quote makes it impossible to verify what work is actually being done.
Unusually cheap electrical work often means unlicensed labour, substandard materials, or corners cut on safety compliance.
Given the safety stakes of this trade, a contractor unwilling to put a workmanship warranty in writing is a significant concern.
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PROJECT SCOPE
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BUDGET
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MID-RANGE
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NOTES
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|---|---|---|---|
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5 ADDITIONAL POWER POINTS
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$400–$700
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$700–$1,000
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Concealed wiring costs more than surface trunking
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FULL LIGHTING CIRCUIT (LIVING + BEDROOMS)
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$800–$1,400
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$1,400–$2,500
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Includes cove lighting integration if applicable
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DB UPGRADE (STANDARD HDB)
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$600–$1,000
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$1,000–$1,800
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Required for significant new load — aircon, induction hob
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FULL REWIRE (HDB 4-ROOM)
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$2,500–$3,800
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$3,800–$5,500
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Multi-day works; common for older resale flats
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FULL REWIRE (LANDED PROPERTY)
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$5,000–$9,000
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$9,000–$16,000
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Multi-storey scope significantly increases labour and material
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If you’re adding an induction hob, multiple aircon units, or an EV charger, ask your electrician to assess DB capacity before finalising your kitchen and appliance plans — retrofitting a DB upgrade after cabinets are installed is significantly more disruptive and costly.
Kitchen cabinets, wardrobes — material comparisons and what to ask before hiring.
Vinyl, timber, marble — what suits Singapore’s humidity and how to compare quotes.
Bathroom tiles, splashbacks, waterproofing requirements, and HDB regulations.
Paint grades, surface prep standards, and coats of coverage.
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