Case Study: Fuse Board Replacement in Ringwood
Updated: Oct 4
This is a composite case study. It's built from several fuse board jobs we've done around Ringwood, Verwood and the edge of the New Forest, with the details blended so nobody's home is identifiable. The pattern is one we see most weeks.
The house was a 1980s brick bungalow with the original fuse board in a porch cupboard. Over forty years someone had added a couple of mismatched breakers beside the old rewireable fuses, and the owners had just ordered an electric car. They also had a socket circuit that tripped whenever the kettle and toaster ran together. They called us wanting a new board and, if possible, a charger later on.
What we found at the survey
We always survey before quoting, and for a fuse board that means testing the installation, not just photographing the box. Here's what turned up in about an hour:
No RCD protection on any socket circuit, which is the single biggest safety gap in a house of this age.
Earth bonding to the gas and water pipes was missing at the gas meter.
A garage spur that had been extended with ordinary twin-and-earth and no protection at all.
One lighting circuit with a low insulation resistance reading, which usually means damaged cable somewhere.
None of that was visible from the front of the old board. It's why we won't quote a fuse board change blind.
How the day ran
We booked the job for one working day, and the owners knew in advance exactly when the power would be off. Here's the order we worked in:
Isolate the supply, then label every circuit before touching a single cable. Mislabelled circuits are the number one cause of 'why is the oven dead' calls afterwards.
Fit a new metal consumer unit with RCD protection on every circuit that needs it, plus surge protection.
Add the missing bonding at the gas meter and check the water.
Dead-test and live-test every circuit, recording the readings.
Reinstate power room by room, with the owners walking through to confirm everything worked.
The lighting circuit we didn't just cover up
This is the part some firms skip. Swapping a new board onto circuits that haven't been properly tested is how faults get buried behind a shiny new lid. The failed lighting circuit led us to a junction box in the loft where the cable insulation had cooked brittle over the years, probably from a recessed light that had been boxed in with insulation. We showed the owners the photo, agreed a small repair before touching anything, and fixed it the same afternoon.
That's the honest version of this job. Older properties around Ringwood often have something like this lurking, and we'd rather find it on our own test than have you find it with a tripped breaker in January.
What the owners got
They finished the day with a fully labelled board, an Electrical Installation Certificate, and the work notified under Part P, all handled by us. Because we left spare ways in the new unit, the EV charger went in a few weeks later without touching the board again. If you want to see everything we do on the electrical side, it's on our plumbing, heating and electrical page.
Related reading
Book a fuse board survey in Ringwood
If your board still has rewireable fuses, a plastic cover, or a few breakers that don't match, book a survey with Complete Builds and tell us the age of the house. We'll test first, tell you what we find, and only then talk about the new unit.
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