What's included
- 18th Edition Amendment 2 compliant
- SPD surge protection options
- Same-day completion in most homes
- Building Control notified (Part P)
Anyone with a rewireable fuse box, no RCD protection, or planning an EV charger or extension that needs an 18th Edition compliant board.
Our process
- 01
Survey & quote
We confirm the board size, RCD layout and earthing arrangement before quoting.
- 02
Power-off window
Most swaps take 4–6 hours. We give a clear window so you can plan.
- 03
Install & test
New consumer unit fitted, every circuit retested and labelled.
- 04
Certify & notify
BS 7671 certificate issued and Part P notified to Building Control.
Frequently asked
How long does a consumer unit upgrade take?+
Most domestic boards swapped in a single day.
Will I lose power?+
Only during the swap window — usually 4–6 hours mid-day.
Do you notify Building Control?+
Yes — every job is Part P notified at no extra cost.
Covering all of South Wales — including Cardiff, Swansea and Merthyr Tydfil. Get a fixed quote.
Request a consumer unit upgrades quote
Written, all-in price — no hourly surprises. Most enquiries get a same-day response between 8am and 9pm, seven days a week.
Consumer Unit Upgrades — by town
Locally-written pages with pricing, housing-stock notes and FAQs for each town we cover.
Consumer Unit Upgrades — related guidance
Costs, comparisons and specialist work connected to this service.
- Storage heater replacement and electric heating circuits →
- Surge protection device installation →
- RCBO board or split-load RCD board? →
- Will a new consumer unit fix it, or do you need a rewire? →
- What changes the price of a consumer unit replacement →
