Electrical Services Singapore — Licensed, Safe & Fully Compliant

Under Singapore's Electricity Act (Cap. 89A), all regulated electrical work must be performed or directly supervised by a Licensed Electrical Worker (LEW). Regulated work includes: new electrical wiring, rewiring, circuit extension or addition, distribution board (DB box) modification or replacement, sub-main installation, and any connection to SP Group supply. Non-regulated work — such as replacing a light fixture on an existing circuit — does not require an LEW on-site but still requires a licensed contractor for insurance and homeowner protection. MM Engineering Works (UEN: 202302469E) is EMA-licensed and can handle all regulated and non-regulated work.

Common 2025 reference prices: power trip investigation $80–$150; single socket installation $60–$120; HDB DB box upgrade $380–$700; full HDB 4-room rewire $1,500–$2,800; condo 3-bedroom rewire $2,500–$5,000; landed house full rewire $4,500–$12,000+. All prices exclude GST and depend on property condition, circuit count, and materials. We provide free itemised written quotations before any work begins. Call +65 8145 3954 for a quote.

SS 638 is Singapore's Code of Practice for Electrical Installations — the technical standard that governs all wiring, circuit protection devices (MCBs, RCCBs), earthing systems, and distribution board design. All regulated electrical work must comply with SS 638 to be certified by an LEW. Work that is not SS 638 compliant cannot be legally certified, cannot obtain SP Group reconnection approval, and may fail BCA or SCDF inspections. More importantly, non-compliant wiring presents real fire and electrocution risks. Every job MM Engineering Works completes is SS 638 compliant as a standard — not an upsell.

Key indicators: frequent power trips that reset themselves; flickering or dimming lights; burning smell near sockets or the DB box; breakers that trip and cannot be reset; warm or discoloured switch plates; buzzing from the DB panel; or visible cracked, brittle, or discoloured wiring insulation. Properties over 20 years old — especially pre-2000 HDB flats and landed houses — should have an electrical inspection regardless of symptoms. Pre-1990 properties may still have aluminium wiring, which oxidises at termination points and degrades with age. Call us for a free rewiring assessment.

No. Singapore's Electricity Act prohibits unlicensed persons from performing regulated electrical work — it is a criminal offence punishable by fines or imprisonment. Beyond the legal risk, DIY wiring that does not comply with SS 638 creates serious fire and electrocution hazards and will void your home insurance policy. Even for non-regulated work such as changing a socket faceplate, incorrect installation can void insurance coverage. The cost of DIY electrical work in Singapore far exceeds the cost of engaging a licensed contractor.

Five things to verify: (1) EMA contractor licence — check on the ELISE portal using their company name or UEN; (2) LEW on-site — confirm a Licensed Electrical Worker will be physically present, not just a sub-contractor helper; (3) Written quotation — never accept verbal-only pricing; (4) Public liability insurance — ask for confirmation; (5) Test certificate — confirm they issue a test and inspection certificate upon completion of regulated work. MM Engineering Works (UEN: 202302469E) meets all five — ask to see our EMA licence number at any time.

Typical durations: socket or switch replacement: 1–3 hours; power trip diagnosis: 1–4 hours; DB box upgrade: half to one full day; full HDB 4-room rewire: 2–4 days; full condo 3-bedroom rewire: 3–6 days; full landed terrace or semi-D rewire: 5–14 days; commercial office fit-out: 1–4 weeks. We provide a realistic, detailed timeline with every quotation so renovation schedules are not disrupted.

A Licensed Electrical Worker (LEW) is an individual certified by EMA to perform and sign off regulated work. An electrical contractor is a company licensed by EMA to engage in electrical works — it employs LEWs, holds public liability insurance, and takes contractual responsibility for the full project. For any regulated work, engage a licensed electrical contractor (not just an individual). The contractor's liability coverage and accountability give you legal protection that an individual LEW cannot provide. MM Engineering Works is both an EMA-licensed contractor and employs LEWs directly.

For most internal HDB renovation electrical works within approved load limits, a separate electrical permit is not required beyond HDB's standard renovation permit. However, works involving the main supply connection, new sub-metering, or DB box changes that affect the supply feed require EMA and/or SP Group notification before commencement. We advise on the specific permit requirements for your exact scope at the assessment stage — so you are never caught off-guard by regulatory requirements mid-renovation.

Yes — islandwide, all 28 planning areas. This includes HDB estates in Woodlands, Yishun, Sengkang, Punggol, Tampines, Bedok, Hougang, Jurong West, Choa Chu Kang, and Ang Mo Kio; private residential areas including Bukit Timah, Holland Village, Novena, East Coast, Sentosa Cove, and the Good Class Bungalow areas; and commercial zones including the CBD, Orchard Road, Jurong East, and Paya Lebar. Call us regardless of your location.

For electrical emergencies — power failure, burning smell, sparks, or total loss of supply — we are available 24 hours a day, 7 days a week including public holidays. WhatsApp us at +65 8145 3954 with a photo of the issue for the fastest possible response — we can often advise immediately and dispatch the nearest available team. For planned works, we typically schedule site assessments within 1–3 working days.

MM Engineering Works Pte Ltd (UEN: 202302469E) is an EMA-licensed electrical contractor. EMA licensing is the regulatory framework for all electrical work in Singapore, including HDB properties — HDB requires all renovation electrical works to be performed by EMA-licensed contractors. You can verify our licence status at any time via EMA's ELISE portal by searching our UEN (202302469E) or company name.

Yes. All work completed by MM Engineering Works includes a workmanship warranty. The warranty period and coverage details are stated clearly in your written quotation before any work commences. For rewiring and DB box works, a test and inspection certificate signed by our LEW is issued on completion — this is the formal documentation of your installation's condition and compliance. If any issue covered by the warranty arises, we return to rectify at no additional charge.

Yes. MM Engineering Works provides the full range of commercial electrical services — office fit-outs, retail and F&B works, three-phase power installation and fault tracing, commercial DB board setup, emergency and exit lighting (SCDF compliant), and electrical subcontracting for renovation and construction companies. We support BCA and TOP documentation where required. For commercial enquiries call or WhatsApp +65 8145 3954 or submit your project online.