DB Box Replacement & Circuit Breaker Upgrade

From $140.76 fixed price4.9 from 136 Google reviewsSame-day slots

The distribution board (DB box) splits your home's supply into separate circuits and protects each one with a circuit breaker. Older boards in resale HDB flats and condos often lack residual current protection or spare ways for new circuits, and a single worn breaker can cause frequent trips.

Book DB Box Replacement Online

Tap a job to see its fixed price, then pick a date and time. It takes under a minute.

No hidden fees
30 days warranty

StringsSG electricians replace individual circuit breakers or install a complete new distribution board. Prices start from $140.76, fixed and shown before you book.

What's Included

  • Inspection of the existing board, breakers and incoming wiring
  • Replacing a faulty circuit breaker, or installing a new distribution board
  • Power-on testing of every circuit before handover
Licensed electrician working on a distribution board in Singapore

DB Box Replacement Price in Singapore

Fixed prices per job. You see the total before you confirm the booking.

Electrical

  • Replace circuit breaker

    Power Distribution

    S$ 140.76

  • Install electrical distribution board (DB box)

    Power Distribution

    S$ 324.76
See all electrician prices

Signs your DB box needs attention

  • The same breaker trips repeatedly with nothing obviously wrong
  • A breaker feels warm, buzzes or shows scorch marks
  • There are no spare ways for a new aircon, water heater or oven circuit
  • The board is original to an older resale flat and has no residual current device

What Affects the Price

  • Replacing one breaker versus installing a complete new board
  • The number of circuits to be moved to the new board
  • Access to the board, for example inside a cabinet or high on a wall

How to Book a Electrician

  1. 1. Open a Service Request

    Pick the job on the StringsSG website or app and see the fixed price before you confirm. It takes under a minute.

  2. 2. Secure Online Payment

    Pay from your StringsSG account via PayNow, GrabPay, credit or debit card.

  3. 3. Team Assignment

    We assign a electrician for your job. Chat with them in the app before the visit.

  4. 4. Job Done

    The electrician arrives within your chosen 2-hour arrival window and completes the work.

DB Box Replacement FAQs

StringsSG lists distribution board installation and circuit breaker replacement at fixed prices, starting from $140.76 for a single breaker. See the price table on this page for the full-board price. You see the exact amount before confirming.
If one breaker is faulty and the rest of the board is in good condition, replacing that breaker is usually enough. A full replacement is worth considering when the board is old, has no residual current protection, or has no spare ways for new circuits.
Yes, the supply to the board has to be switched off while the electrician works on it, so plan for a period without power. Breaker replacements are much shorter than full board installations.
Yes. Our electricians work in HDB flats, BTO and resale units, condominiums and landed homes across Singapore.

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