USB sockets, downlights and safer circuits for a St Albans renovation.
Extra sockets, new downlights and dimmers, a new bathroom fan, and a bedroom circuit made safer, all timed around the plumber and carpet fitters.
Homeowners renovating a bedroom and spare room wanted extra USB sockets, new downlights, dimmers and a new bathroom fan, coordinated with the plumber and carpet fitters.
At a glance
| Location | St Albans (AL1) |
|---|---|
| Completed | June 2026 |
| Work | Renovation electrics |
| Property | Family home |
| Time on site | Survey (1 May 2026) and four visits (20-21 May, 8-9 Jun 2026) |
| SEG team | Jamie and Matthew |
What we found
- TN-S earthing
- Bedroom ring on a 32A Type A RCBO with many spurs, some untraceable under the floor - RCBO needed downgrading to 16A
- One existing socket showed signs of thermal damage
- Living-room two-way lighting incorrectly terminated, switching the wrong way
- Fan timer not working because a 3-core feed was not terminated
What we did
- Adapted the bedroom ring to add four double sockets with USB-A and USB-C and a switched fused spur for LED tape
- Chased cable routes into oval conduit and ran cables through joists via 25mm holes
- Changed the ring RCBO to 16A and torqued to the correct setting
- Replaced the thermally damaged socket and other doubles with USB versions
- Installed six GU10 downlights in the spare room and white dimmer switches
- Fitted a PIR in the utility room and corrected the living-room switching
- Replaced the bathroom inline fan and set its timer
- Checked gas and water bonding and tested Ze, PFC and RCBO trip times
Equipment used
- USB-A/USB-C double sockets
- GU10 downlights
- White dimmer switches
- Inline extractor fan
- PIR sensor
- FuseBox 16A RCBO
Need something similar in St Albans? See electrical installations, or electricians in St Albans. Call 01727 238 999 or tell us about the job.
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From SEG’s job records and engineers’ photos. Customer details are kept private.
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