Your dependable electrician in Singapore.
A1 Electrician Services SG handles installations, repairs and emergency call-outs for HDB, condo, landed and commercial properties. Licensed workers, honest quotes, tidy jobs.
- Jobs completed
- 4,800+
- Avg. response
- 60 min
- Google rating
- 4.9

24 hour emergency support
On-call day, night, weekends and public holidays.
Licensed Electrical Workers
EMA-registered and HDB-approved contractors.
Transparent pricing
Clear quotes upfront. No hidden fees, ever.
Our services
Electrical work, done properly.
From a single socket replacement to a full flat rewire, our team handles installations, repairs and inspections across Singapore.
Water Heater Installation
Storage & instant water heater installation for HDB, condo and landed homes.
Learn moreCCTV Installation
Home and shop CCTV systems with mobile viewing and clean cable runs.
Learn moreCeiling Fan Installation
Standard, DC and smart ceiling fans installed with secure ceiling mounts.
Learn moreDoorbell Installation
Wired and wireless doorbells, including video doorbells for HDB gates.
Learn morePower Outlet & Switch Installation
New power sockets, USB outlets and light switches for home and office.
Learn moreElectrical Rewiring
Partial and full rewiring for older HDB flats, condos and landed homes.
Learn moreLighting & LED Installation
Downlights, track lights, pendants, cove and LED strip installation.
Learn moreHDB ELCB Services
ELCB testing, tripping diagnosis and RCCB/RCBO replacement for HDB flats.
Learn moreSmart Home Automation
Smart lights, switches, curtains, sensors and voice-controlled scenes.
Learn more
Power tripping? Burning smell? We answer 24/7.
When your circuit breaker refuses to reset, an outlet is sparking or the whole flat has gone dark, call the on-call team. We arrive quickly, isolate the fault safely and get your power back on.
- Power outages and trip diagnosis
- Burning smell and buzzing sockets
- Faulty switches, breakers and lights
Who we work with
Homes, offices, shops and job sites.
Residential & HDB
HDB flats, condos and landed homes. We work directly with owners and with interior designers on renovation projects.
Commercial & Industrial
Offices, F&B, retail and light industrial. Planning, installation, maintenance and LEW-endorsed compliance work.

What our customers say
"Booked online at night and they arrived by 9am the next morning. Fixed our tripping issue and labelled the DB clearly."
"Neat cabling for our downlights and cove lighting. My ID recommended them and I understand why now."
"Aircon isolator kept tripping. Diagnosed within 20 minutes, replaced the RCBO, all sorted. Fair pricing."
Rewiring packages
Fixed-price full-flat rewiring.
Complete rewires for 3, 4 and 5 room HDB flats — Schneider Vivace switches, new DB box and all essential power and lighting points included.
3 Rooms Rewiring
- 1 no. 13A single power point socket
- 9 nos. 13A double power point socket
- 8 nos. new lighting points (including installation of light fittings)
- 1 no. 20A water heater point with connection
- + 3 more inclusions
4 Rooms Rewiring
- 1 no. 13A single power point socket
- 12 nos. 13A double power point socket
- 10 nos. new lighting points (including installation of light fittings)
- 2 nos. 20A water heater point with connection
- + 3 more inclusions
5 Rooms Rewiring
- 2 nos. 13A single power point socket
- 15 nos. 13A double power point socket
- 14 nos. new lighting points (including installation of light fittings)
- 2 nos. 20A water heater point with connection
- + 3 more inclusions
Need an electrician today? Let's get it sorted.
Tell us what's happening and we'll give you an honest quote before we start.