Calculate your consumer unit cost
Consumer unit cost by property size in Cardiff
The UK property examples are adjusted using the same moderated 25% regional weighting as the live calculator.
UK £350£342
UK £350£342
UK £550£550
UK £750£750
UK £800£800
Current UK consumer-unit cost breakdown
These component prices remain national benchmarks rather than being presented as measured city-specific equipment prices.
Installed benchmark comparison
What can change a real Cardiff quote?
- Number of circuits
- RCBO, MCB/RCD or other configuration
- Condition of existing wiring
- Electrical inspection and testing
- Meter tails, bonding and remedial faults
- Moving the consumer unit
- Property size and regional labour
Local planning considerations
For grants and energy schemes, verify the current Wales-specific eligibility rules before relying on any support assumption.
- Use Wales-specific planning, building-control and energy-scheme information where the rules differ from England.
- Terraced or constrained urban properties can add access, waste and scaffold costs that are not captured by the regional factor.
- Drainage, roof and external-work scopes should be based on the property condition rather than a generic city assumption.
How the regional model works
The live consumer-unit calculator applies only 25% of the broad Wales regional difference because the consumer unit and protection devices are nationally priced equipment while local labour is only one part of the installed total. The resulting Cardiff factor is 0.978×.
Sources
Consumer Unit Replacement Cost Guide
Published / checked: Cost table updated June 2026
Used for: Consumer unit supply, installation, inspection and common complete replacement benchmarks
Frequently asked questions
How much does a consumer unit replacement cost in Cardiff in 2026?
The current UK benchmark is about £485 for a populated 10-way RCBO consumer unit including installation. Applying the same moderated regional factor as the live calculator gives a Cardiff planning reference of about £474.
What is the consumer unit cost range in Cardiff?
Current UK guidance runs from about £350 for smaller six-circuit homes to around £800 for larger homes with 12 or more circuits. The live calculator's regional model gives a Cardiff planning range of about £342–£800 before additional remedial work.
Why should supply-only and installed consumer-unit prices be kept separate?
A populated 10-way RCBO unit is currently about £250 supply only, while the common installed benchmark is about £485. Comparing a supply-only product price with a complete electrician quote can make the installed cost look misleadingly high.
What can increase a consumer unit replacement quote?
More circuits, remedial faults, testing, meter-tail work, relocation, difficult access and defects in the existing installation can all increase the final total.