West Sussex · RH12, RH13
Consumer Unit Upgrade in Horsham
A consumer unit upgrade replaces an old fuse box with a modern unit incorporating RCD (residual current device) protection on relevant circuits, improving safety by cutting power quickly in the event of a fault, and is one of the most common findings recommended on an EICR.
In Horsham, that covers Roffey, Holbrook, Littlehaven, Denne, Trafalgar, Broadbridge Heath, Southwater, Warnham, Colgate. Horsham's town centre retains a historic core of timber-framed and Georgian buildings around the Carfax and Causeway, surrounded by Victorian villas, interwar suburbs and newer developments on the town's edges. The surrounding villages and countryside sit close to the South Downs, which shapes both the property styles and the planning context for extension and renovation work.

Coverage
Areas we cover in Horsham for consumer unit upgrade
Property styles in Horsham
Horsham has a strong stock of period cottages and Victorian villas in and around the town centre, alongside 20th-century family housing in the surrounding estates and larger detached homes in the outlying villages. Extension and loft conversion potential varies significantly between the historic core and the more recent suburbs.
Planning considerations
Horsham District Council is the local planning authority. The town centre, including the Causeway, is a conservation area with a number of listed buildings, meaning alterations to visible elevations, windows and materials are more tightly controlled. Some outlying villages also have their own conservation area designations, which we check before advising on likely planning routes.
How it works
Our consumer unit upgrade process
- 01
Assessment
Inspecting the existing consumer unit and circuits to confirm what the new unit needs to accommodate.
- 02
Isolation and removal
Safely isolating the supply and removing the old fuse box.
- 03
Installation
Fitting the new consumer unit and connecting existing circuits, correctly labelled.
- 04
Testing and certification
Full testing to BS 7671 and issuing an Electrical Installation Certificate with Part P notification.
Also in this area
Other services we provide in Horsham
Nearby coverage
Consumer Unit Upgrade in nearby areas
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FAQs
Consumer Unit Upgrade in Horsham: FAQs
Do you provide consumer unit upgrade across all of Horsham?
Yes, we cover the RH12 and RH13 postcode areas in full, including Roffey, Holbrook, Littlehaven, Denne, Trafalgar, Broadbridge Heath, Southwater, Warnham, Colgate.
How do I know if my fuse box needs replacing?
Common indicators include old rewireable fuses, no RCD protection, or adverse findings on an EICR. We assess the specific unit on a visit rather than assuming age alone means it needs replacing.
Will I lose power during the upgrade?
Yes, briefly — the supply needs to be isolated while the old unit is removed and the new one connected. This typically takes part of a day and is scheduled with you in advance.
Is Horsham town centre a conservation area?
Yes, the historic core around the Carfax and Causeway is a conservation area with a number of listed buildings, which affects what changes can be made without planning permission or listed building consent.
Get a quote for consumer unit upgrade in Horsham
Tell us about the property and what you have in mind, and we'll arrange a site visit.
Last reviewed 2026-07-28.