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Electrician companies in Cardiff

866 electrician companies have a registered office in Cardiff, and 146 of them were formed in 2025 or 2026. In their latest accounts, the typical one held £22,079 in cash and owed £29,732 at year end.

Companies House register, 1 September 2026, and accounts filed in the last twelve months. Compared with the official category “Electrical installation” (SIC 43210).

The numbers

Electrician companies in Cardiff compared with the same category across the UK. Typical figures are medians.
MeasureCardiffUK
Registered companies86655,640
Formed in 2025 or 2026146 (17%)19%
Being struck off or in liquidation232 (27%)9.9%
Typical cash at year end£22,079196 accounts£19,688
Typical amount owed at year end£29,732418 accounts£24,180
Typical number of employees2422 accounts1

What this means if you’re starting one

You will be up against established operators

17% of the 866 electrician companies in Cardiff were formed in 2025–26, against 26% of all companies in Cardiff.

Few new companies are entering, so your customers will compare you with businesses that have years of reviews and regulars.

Most of these businesses are run by one or two people

The typical electrician company in Cardiff reports 2 employees; the top quarter has 3 or more (422 filings).

You are mostly up against owner-operators. Your own hours are likely to be your biggest cost, and the easiest one to undercount.

Planning a business like this in Cardiff?

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What these figures can’t tell you

Companies are counted where their registered office is, which may be an accountant or a home address rather than a shop. Sole traders and partnerships are not on the register, and electronically filed accounts cover roughly 60–75% of accounts filed each year. The figures describe companies that exist; they cannot prove demand for your idea or predict whether it will work. How the figures are built.

Electrician in other places

Other businesses in Cardiff

All business benchmarks in Cardiff