Old fuse wire board, no RCD protection, or an EICR fault code — we replace consumer units to modern BS 7671 standard, fully notified under Part P, with a certificate on the day.
Price depends on number of circuits and board type. We always provide a written fixed quote before starting.
Any one of these is a reason to get a quote. More than one is urgent.
If your board has rewirable fuses — ceramic carriers with wire running through them — it has no RCD protection and is decades out of date. Modern boards offer significantly better protection.
RCDs (residual current devices) protect against electric shock and can save lives. Homes built before the mid-1990s often have no RCD at all. This is a common EICR C2 code.
Frequent nuisance tripping can indicate an overloaded board, ageing components or an underlying circuit fault. We'll diagnose whether it's the board or a circuit issue.
Adding an EV charger, hot tub, shower room or kitchen circuit often requires spare ways or an upgraded board to safely accommodate the additional load.
Buyers' solicitors and surveyors increasingly flag old fuse boards. Upgrading before sale removes a negotiation point and satisfies EICR requirements.
Condition codes on your EICR report may require the board to be upgraded as a remedial action. We can carry out the EICR and the remedial work in one visit.
Regulations now require consumer units in domestic properties to use metal enclosures (since 2016). Plastic boards in accessible locations are non-compliant.
A loft conversion, extension or garage conversion typically adds new circuits. We'll assess whether the existing board can safely accommodate them.
We'll recommend the right one for your property. Here's how they compare.
Standard protection · Most common
One or two RCDs protect groups of circuits. The most common type fitted in homes. Good protection and reliable performance for standard domestic installations.
Enhanced protection · Recommended
Two RCDs with critical circuits (lighting, smoke alarms, boiler) on a separate non-RCD supply, so if a fault trips one RCD, essential services stay on. Recommended for most homes.
Maximum protection · Premium option
Every circuit has its own individual RCBO — combining a circuit breaker and RCD in one device. A fault on one circuit trips only that circuit. Nothing else in the house is affected.
Not sure which is right for you? We'll advise based on your property and budget — no pressure.
We visit or take a video walkthrough to count circuits and assess the job. Fixed written quote within 24 hours.
We agree a date. Most jobs are booked within 1–2 weeks. You'll need to be home for the full day.
We isolate the supply. The house will be without power for most of the working day — plan accordingly.
We install the new board and test every circuit against BS 7671. We'll identify any faults on your installation at the same time.
Power restored. We walk you through the new board and hand you the Electrical Installation Certificate.
Consumer unit replacement is notifiable under Part P of the Building Regulations. We handle all notification on your behalf as a registered competent person.
All work is carried out to BS 7671:2018+A4:2026 (IET Wiring Regulations, 18th Edition). Metal enclosures fitted as standard in compliance with current regulations.
You receive a full Electrical Installation Certificate the same day. Keep it with your property documents — you'll need it for insurance, re-mortgage and sale.
Real consumer unit jobs filmed on site. See what we find and why upgrading matters.
No RCD Protection? Here's Why That's Deadly
A breakdown of what RCDs actually do and the risk of an unprotected home.
Your Home Just Got Way Safer
The before and after of a consumer unit upgrade — what changes and why it matters.
RCD Keep Tripping? We Found the Culprit
Diagnosing a persistently tripping RCD — and what was causing it.
Most jobs are completed in one day. The power is typically off from morning until late afternoon. You'll need to be home throughout.
Yes — but we handle this for you as a NAPIT registered contractor. You don't need to do anything. We submit the notification and you receive the certificate.
A split load board uses one or two RCDs protecting groups of circuits — if the RCD trips, a whole group goes off. A full RCBO board gives every circuit its own device, so only the faulty circuit loses power. Full RCBO costs more but is far less disruptive when a fault occurs.
Not always. A C2 on the consumer unit means a potentially dangerous condition that needs addressing, but the remedy could be a repair rather than full replacement. We'll give you an honest assessment and quote for both options where applicable.
No. We only replace the board itself — no cables are chased or walls disturbed. The work is contained to wherever the consumer unit is located.
An Electrical Installation Certificate (EIC) — this records the new installation, all test results, and confirms compliance with BS 7671. Essential for your home insurance and any future sale.
Yes — and it often makes sense to do both in one visit. The EICR tests every circuit before the new board goes in, so any other faults are identified at the same time.
Tell us about your property and current board setup. We'll come out to assess (or take a video walkthrough) and provide a fixed written quote within 24 hours.