Electrical
MCB and distribution board upgrade with RCCB protection
Replace old fuse boxes with a modern DB, correctly rated MCBs and an RCCB that protects against shock.
An old kit-kat fuse box or a crowded, unlabelled MCB board makes every fault a guessing game, and often gives no protection against electric shock.
RennovEN installs a modern distribution board with correctly rated MCBs per circuit and an RCCB that cuts power within milliseconds if current leaks to earth.
Signs you need this
- Kit-kat fuses still in use
- MCBs trip frequently
- No RCCB or ELCB
- Unlabelled circuits
The RennovEN promise
- 10-year warranty on all works
- Itemised pricing, approved before work begins
- One accountable team across every trade
- Residential specialists — homes only
Diagnosis
Why it happens
Wrong MCB ratings
Oversized MCBs fail to protect wires; undersized ones trip constantly.
No earth-leakage protection
Without an RCCB, a shock from a faulty appliance may not trip anything.
Loose terminals
Old boards develop loose, heated connections.
Our method
How RennovEN does it
- 1
Inspect
Assess existing board, circuits and loads.
- 2
Plan
Circuit split and protection ratings.
- 3
Install
New DB, MCBs, RCCB and labelling.
- 4
Test
Trip tests and load checks.
What’s included
- New distribution board
- Correctly rated MCBs per circuit
- RCCB for shock protection
- Circuit labelling
- Testing and handover
What affects the cost
- Number of circuits
- Single or three-phase supply
- Switchgear brand
- Wiring corrections needed
Every home is different, so we don’t publish rate cards. After a free inspection you get an itemised estimate, and you approve every line before work begins.
Get my itemised estimate10-year warranty
DB installation and connections we make are covered for 10 years against workmanship defects. Devices carry their manufacturer warranty.
How our warranty worksFAQ
MCB & DB Upgrade: your questions
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