FUSE BOXUPGRADED.
Old plastic-cased fuse box or one without RCD protection? An 18th-edition upgrade takes half a day and comes with certification the same afternoon.
The short version
What you need to know.
A modern consumer unit is a metal-cased board with individual RCBOs per circuit and surge-protection built in. If yours is a plastic Wylex or MK from before 2016, you're one accident away from a bigger problem.
Details
What's involved.
18th-edition metal board
Fire-resistant enclosure to BS 7671 amendment 3.
Individual RCBOs
Trip only the affected circuit — the freezer stays on when the bathroom trips.
Surge protection (SPD)
Type 2 SPD protects everything downstream — smart meters, TVs, chargers.
Full circuit test
Insulation resistance and continuity on every circuit before energising.
Same-day certificate
Signed electrical installation certificate emailed by end of the day.
Good to know
Fine print, no surprises.
- Standard swap fits in half a day for a 3-bed house
- Board typically installed in existing cupboard — no visible pipework changes
- Any existing wiring failures logged for optional follow-up
Guide prices
From-prices.
Consumer unit — up to 10 circuits
SPD + RCBOs · fitted
from £550
Consumer unit + EV circuit
Bundle if fitting an EV charger
from £720
Board relocation
Priced after quick site look
from POA