Price the DB, the new circuit and the LEW test
Estimate a Singapore DB box upgrade or a power-trip repair. An emergency 30mA RCCB swap is from S$138 to S$480. An HDB 12-way to 18-way Hager or ABB board is S$480 to S$780. A landed or office 18-way to 24-way overhaul is S$780 to S$1,150. The result splits the enclosure, the high-load cabling and the EMA LEW test, then opens WhatsApp.
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Describe the board and the new loads
Pre-1985 HDB flats are called out because the 30mA RCCB is mandatory there too. A single appliance circuit is S$220 to S$450 including the LEW check. Extra sockets and Cat6 points are added on the cabling line.
| Line | What it covers | How it shows |
|---|---|---|
| DB enclosure and breakers | Hager or ABB consumer unit, or one RCCB or MCB | S$0 when you only pull a circuit |
| High-load cabling and isolators | 20A, 32A or 40A runs, plus extra sockets or Cat6 | S$220 to S$450 for one appliance circuit |
| EMA LEW testing | SS 638 check and the 30mA RCCB confirmation | Included in every total above S$0 |
Homey Furnishing Pte. Ltd. UEN 202018148K. A new water pipe is a PUB Licensed Plumber. Slab hacking is V On Construction Pte. Ltd. UEN 201611708H. Changing the DB is not that permit.
Plan Price the DB, the new circuit and the LEW test
Choose the property and the scope that match the home.
Read each line in the result, not only the total.
Change one input at a time if you want to see what moves.
Open WhatsApp with the summary if you want the visit booked.
| Access | HDB | Condo | Landed |
|---|---|---|---|
| HDB | Use the HDB choice if the form has one. Permit work is still a separate contractor. | Do not pick HDB for a condo. | Do not pick HDB for a landed house. |
| Condo | MCST hours and deposits are real even when the form has no dollar for them. | Say so in the WhatsApp note. | A landed house is not a condo unit. |
| Landed | Storeys and external areas must be named if the form has no landed size. | A condo calculator is the wrong form. | Describe the storey in the message. |
- Have the flat type ready
- Count rooms or units the form asks for
- Do not guess a permit as a small repair
- Read the result before sending
- Attach photos in WhatsApp
Frequently Asked Questions
Does a pre-1985 flat change the price?
The emergency RCCB swap is from S$138 to S$480. The note changes: EMA requires the 30mA device in those flats, so the visit confirms it is present and trips.
Can I add a hob circuit without a new DB?
Yes, when a spare way exists. One 20A or 32A circuit is S$220 to S$450. If the board is full, add the HDB DB upgrade at S$480 to S$780.