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Partial rewire

Replacing or extending some of a property's circuits rather than all of them, often a kitchen, a bathroom or an upstairs lighting circuit. Partial rewire is carried out nationally by 250 electricians, with businesses concentrated in London, Bristol, Leeds, Sheffield and Birmingham. It is also known as circuit extension, rewiring one room or new circuit.

Why people have it done

  • The circuits that need replacing are replaced without opening up the whole property.
  • Work follows a room being refitted rather than waiting for a whole-house job.
250
Electricians listed
219
Register-listed
36
Areas covered
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Electricians who do partial rewires

Worth knowing

  • The businesses have 7047 reviews in total. Ratings run from 3.9 to 5.0, with a median rating of 5.0 across 199 rated businesses, while the most-reviewed business has 725 reviews.
  • The work is also offered alongside rewires, consumer units, fault finding, EICR, lighting, EV chargers, socket installation, emergency callouts and 29 other services.
  • Among the businesses, 160 are registered as installers and 80 are registered as inspectors. Scheme affiliations include 126 with NICEIC, 63 with NAPIT and 30 with Part P.
  • All 250 businesses have their own website. Of these, 72 of 250 are active companies at Companies House, incorporated between 2006 and 2025, with a median year of 2019.
  • The largest city concentration is London with 141, followed by Bristol with 11, Leeds with 8, Sheffield with 8 and Birmingham with 7. Within London, Croydon and Enfield each have 12, Bromley has 11, Waltham Forest has 9 and Lambeth has 7.

Common problems

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Questions people ask

Partial rewire UK (page 12) | Tradehand