Residential Rewiring
HDB flats, condos and landed houses. Full or partial rewires, often planned around a renovation, with HDB and MCST requirements handled.
- HDB BTO and resale flats
- Condominium units
- Terrace, semi-D and bungalow
24/7 emergency electrician in SingaporeBCA Registered | EMA Licensed | LEW Certified
Free site survey, fixed written quote
Electrical Rewiring Singapore Full & Partial Rewiring for Homes and Businesses
Old wiring rarely fails all at once. It shows up as nuisance trips, flickering lights and warm switch plates long before anything burns. TRUST ELECTRICIANS plans and carries out full and partial rewiring for homes, offices, shops and industrial sites across Singapore, LEW-endorsed and priced in writing before any wall is opened.
Not sure you need a rewire?Check the 7 warning signs
Survey before quoteWe tell you if a partial rewire is enough
- 5–14 daysTypical full rewire, HDB or condo
- Itemised written quoteBy room, circuit and component
- LEW sign-off + CoCBCA registered, EMA-compliant
- Every property typeResidential, commercial, industrial
Registrations & certifications you can checkSingapore-registered and EMA-licensed
Start here
Which Rewiring Service Do You Need?
Rewiring a flat, a shop and a factory are three different jobs, with different rules, timelines and paperwork. Pick your property type for the full details.
Commercial Rewiring
Offices, retail, F&B, clinics and gyms. Phased or after-hours work so the business keeps running, with MCST and insurer documentation.
- Office and retail fit-outs
- F&B and clinics
- After-hours and weekend works
Industrial Rewiring
Factories, warehouses and plant rooms. Cable trays, distribution boards and control panels, planned around production and shutdown windows.
- Warehouses and factories
- Cable trays and trunking
- DB and control panel works
Rewiring Work Across Singapore
Homes, offices and warehouses rewired by our own licensed electricians: old cable out, new cable in, every circuit labelled and tested before handover.
Full HDB rewireEvery point ready for fittings 
Office renovation rewiringCeiling cable trays and wiring 
Warehouse rewiringOverhead cable trays on scissor lifts 
Old landed house rewiredNew points on ceiling and walls 
Old tangled wiring removedBefore the new cable went in 
PVC conduit rewiringHDB flat, full rewire 
Plant room switchgearPanels serviced, cable trays above 
Full rewiring in progressCeiling conduit runs, empty HDB 
Overhead conduit, officeLicensed electrician on a lift 
Distribution board rewiredEvery circuit labelled and tested 
Outdated exposed wiringOld house, before rewiring 
HDB renovation rewireNew wiring on walls and ceiling
Planning a rewire? Send us photos of your DB box and a few rooms and we will tell you what the job involves.
WhatsApp Your PhotosWarning signs
Do You Need Rewiring? 7 Signs We Look For
Most Singapore properties need a rewire because of age, not damage. Three or more of these usually means a full or partial rewire is the right answer.
- Wiring over 20 years old. Older PY rubber-insulated cable turns brittle and cracks inside the wall.
- Frequent trips with no clear cause. Usually degraded insulation leaking current to earth.
- Lights flicker or dim under load. Undersized cable or loose connections when the aircon or heater starts.
- Burning smell at a socket, switch or DB. Even once is enough to switch off that circuit and call us.
- Warm or discoloured switch plates. Heat damage has already started behind the plate.
- Two-pin sockets or no earth wire. Modern appliances need a proper earth to be safe.
- A major renovation is coming. The cheapest time to rewire is when the walls are already open.
Over 2,500 Electrical Jobs Completed Across Singapore
From one-room partial rewires to full commercial fit-outs, here is what Singapore homeowners and businesses say about us on Google.
Scope
Full Rewire or Partial Rewire?
You do not always need to rewire everything. The survey tells us which circuits have failed insulation tests and which are still sound.
Full Rewire
Every circuit replaced from the DB box to the last point, with a new or upgraded DB. Right for wiring over 20 years old, failed insulation tests across several circuits, or a full renovation.
- New cable on every circuit
- New DB with MCBs and RCCB protection
- Full test report and CoC
Partial Rewire
Only the failing or renovated circuits are replaced, typically one or two rooms, the kitchen or the bathroom. Faster, less disruptive and cheaper when the rest of the installation tests sound.
- Kitchen or bathroom only
- One or two rooms
- Adding circuits for new appliances
Burning Smell, Scorch Marks or Trips That Keep Coming Back?
Those are signs of wiring that has already started to fail. Switch off the affected circuit at the DB box and call us. We test first and tell you whether you need a repair or a rewire.
Typical cost
Electrical Rewiring Cost in Singapore
Typical full rewire prices by property type. Your fixed quote follows the free site survey and does not change once the walls are open.
Property typeFull rewire (SGD)
3-room HDB$3,800–$6,500
4-room HDB$4,800–$7,800
5-room / Executive HDB$5,800–$9,500
Condo (1,000 to 1,400 sqft)$7,500–$14,000
Landed (intermediate terrace)$18,000–$35,000
Partial rewire (1 to 2 rooms)$1,800–$4,500
How we work
Our Rewiring Process
From a free site survey to a labelled DB box and a signed Certificate of Compliance.
5–14 daysHDB or condoFull rewire on site
2–4 weeksLanded houseDepending on size
- Free site survey. We inspect the existing installation, count the circuits, check the DB box and agree what you actually need. Usually 1–2 hours.
- Itemised written quote. By room, circuit and component, within 1–2 working days. No open-ended clauses.
- Pre-rewire inspection, if needed. For HDB resale, MCST or insurance, a baseline LEW inspection is recorded first.
- Rewire works. Chase or trunk the new routes, pull new cable sized to each load (1.5 mm² lighting, 2.5 mm² sockets, 4 mm² and up for aircon and heaters), and fit a properly sized DB with RCCB protection.
- Testing and LEW endorsement. Insulation resistance, earth continuity, polarity, RCD trip time and loop impedance, with the results in your handover pack.
- Certificate of Compliance. The document you need for HDB resale, MCST sign-off, insurance and future renovations.
- Handover. Every circuit labelled at the DB, walls made good and ready for painting, and a walk-through of the new board.
Our own electriciansNo subcontracted rewiring crews
Why Singapore Trusts Us to Rewire
- Fixed quote, in writing. Itemised before any wall is opened, and it does not change once the walls are open.
- LEW-endorsed, CoC issued. Every rewire is tested and signed off by a Licensed Electrical Worker.
- One licensed team. The electricians who survey your property are the ones who rewire it.
- Clean, labelled handover. Every circuit labelled at the DB and walls made good, ready for your painter.
Areas We Cover for Electrical Rewiring
Islandwide Singapore, with no travel surcharge. We rewire HDB estates, private condos, landed homes, business parks and industrial estates.
We regularly carry out rewiring in
- Tampines
- Bedok
- Sengkang
- Punggol
- Yishun
- Woodlands
- Jurong West
- Jurong East
- Bukit Batok
- Toa Payoh
- Ang Mo Kio
- Hougang
- Serangoon
- Bishan
- Clementi
- Queenstown
- Choa Chu Kang
- Bukit Panjang
- Pasir Ris
- Kallang
- Geylang
- Bukit Merah
- Bukit Timah
- Tuas
- Kaki Bukit
- Ubi
Electrical Rewiring FAQs
Quick answers to what Singapore property owners ask us most about rewiring.
How much does electrical rewiring cost in Singapore?
A full rewire typically ranges from about $3,800 for a 3-room HDB flat to $14,000 for a mid-sized condo, and more for landed homes. A partial rewire of one or two rooms is usually $1,800 to $4,500. You get a fixed written quote after the free site survey.
How long does a full rewire take?
Most HDB and condo full rewires take 5 to 14 days on site. Landed houses usually take 2 to 4 weeks, depending on size and access.
Do I need a full rewire or only a partial rewire?
It depends on what the insulation tests show. If only a few circuits fail, or you are renovating one area, a partial rewire is often enough. We will tell you honestly after the survey.
Is a Certificate of Compliance needed after rewiring?
Yes. Any change to fixed wiring in Singapore must be endorsed by a Licensed Electrical Worker. We issue the CoC with your handover pack.
Concealed wiring or surface trunking?
Concealed wiring is chased into the wall and looks cleaner, but takes longer and costs more. Surface trunking is faster and cheaper but visible. Many homes use a mix of both.
Where can I find details for HDB, condo or landed rewiring?
Our residential rewiring page covers homes in detail, and the commercial and industrial pages cover businesses.
Planning a Rewire? Start With a Free Site Survey
Tell us the property type, its age and what you have noticed. We will arrange a free site survey and send an itemised, fixed written quote.
Request a Rewiring Survey
Free site survey and written quotation.
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