DB Box Replacement & Installation Singapore
Old fuse box, a board that's full, or breakers that keep tripping? I replace and install DB boxes for HDB flats and condos, with RCCB protection.
Before you book
- No hacking or concealed wiring. All wiring runs on the wall surface.
- No work above 3m height (high ceilings, double-volume spaces).
40A 12-way distribution box (supply & install)
$500
40A 14-way distribution box (supply & install)
$580
40A 16-way distribution box (supply & install)
$660
Final price confirmed before work begins. No hidden fees. See the full electrician price list
Signs Your DB Box Needs Replacing
- ✕Your current board doesn't have RCCB protection
- ✕Still using an old fuse box from the 70s or 80s
- ✕Board is completely full, no room for new circuits
- ✕Noticed burning smell or discoloration on the board
- ✕Breakers are worn, cracked or won't stay switched on
- ✕Renovating and taking the chance to upgrade
How I Replace It
- 1Assess the site and calculate the load needed
- 2Isolate the mains supply
- 3Remove the old board
- 4Install the new board with the right MCBs and RCCBs
- 5Test every circuit and certify the work
What's Inside Your DB Box
Your distribution board (DB box) splits the power coming into your home into separate circuits: lights, power sockets, aircon, water heater and so on.
Each circuit has its own MCB (miniature circuit breaker), which trips if that circuit is overloaded or shorts. The RCCB (residual current circuit breaker) watches for current leaking to earth, which is what happens when someone gets a shock or water gets into wiring, and cuts the power within a fraction of a second. A 30mA RCCB is the one that protects people.
Replace the Whole Board or Just One Breaker?
If your board is old, has no RCCB, shows burn marks, or is full with no room for new circuits, replacing the whole DB box is the right call.
If the board is in good shape and a single MCB or RCCB has failed, replacing just that breaker costs much less. Breaker prices are on the price list.
See MCB and RCCB pricesChoosing the Right Size for Your HDB Flat or Condo
The "ways" on a DB box are the number of slots for breakers. I count the circuits you have now and ask what you plan to add, like a new aircon or water heater, so the new board has spare ways and you won't need another upgrade later.
I offer 40A boards in 12-way ($500), 14-way ($580) and 16-way ($660), supply and install.
Frequently Asked Questions
Do I need a new DB board?
If your board is more than 20 years old, doesn't have RCCB protection, or shows signs of wear, then yes.
How long does installation take?
Usually 4 to 8 hours depending on the complexity and whether it's a like-for-like replacement or full upgrade.
How much does DB box replacement cost in Singapore?
A 40A 12-way distribution box is $500, a 14-way is $580 and a 16-way is $660, supply and install. A $50 site visit fee applies per trip. The final price is confirmed before work begins.
Do I need to replace the whole DB box, or just one breaker?
Not always the whole board. If the board is in good condition and only one MCB or RCCB is faulty, replacing that breaker may be enough. A single pole MCB is from $60 and a 40A double pole RCCB is $140. I'll check on site and tell you which one you need.
My power keeps tripping. Is it the DB box?
Not necessarily. Tripping is often caused by a faulty appliance, water getting into a socket, or damaged wiring on one circuit, and the RCCB or MCB is just doing its job. Power trip troubleshooting is $40 for diagnosis, and any repair is quoted separately.
Do you replace DB boxes in HDB flats?
Yes. I replace and install DB boxes in HDB flats and condos across Singapore.
Need Help with Distribution Board Installation?
Send me a message and I'll get back to you same day.
Or call me: +65 8835 0405