How Much Does an Electrical Installation Cost in Southport?

By TW Electrical

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If you’re planning any electrical work on your home or rental property in Southport, one of the first questions you’ll ask is: how much is this going to cost?

The honest answer is that it depends on the type of work, the size of the property, and the condition of the existing installation. In this guide, we’ll break down typical costs for the most common types of electrical installation work in Southport and the Northwest, so you know what to expect before you get quotes.

Typical Electrical Installation Costs in Southport (2026 Guide)

Here are realistic guide prices for the most common jobs:

  1. Consumer Unit (Fuse Box) Upgrade

Replacing an old fuse box with a modern consumer unit is one of the most common electrical jobs.

  • Typical cost: £400 – £900
  • Most 3-bed homes fall in the £450 – £700 range

This usually includes a new dual-RCD or full RCBO board, installation, testing and certification. Older properties that need improved earthing or extra circuits can cost more.

  1. Full House Rewire

A complete rewire is a bigger job and the cost varies significantly with the size of the property:

Property Type

Typical Cost Range

1–2 bed flat

£3,000 – £4,500

2–3 bed terraced / semi

£4,000 – £6,500

3–4 bed house

£5,500 – £8,000

Larger 4–5 bed property

£7,000 – £10,000+

These figures generally include a new consumer unit, new cabling, sockets, switches, testing and certification.

  1. Partial Rewire or Additional Circuits

If you only need certain rooms or circuits updating (for example a kitchen extension or new sockets), costs are lower:

  • Single room or circuit: often from around £800 – £1,500+
  • Larger partial rewires: typically, £1,500 – £3,500 depending on scope
  1. Smaller Electrical Installation Work
  • Extra sockets or lighting points: usually priced per point
  • Outdoor power or garden lighting
  • Dedicated circuits for ovens, showers or EV chargers

These smaller jobs are often more affordable and can sometimes be completed in a day.

What Affects the Final Price?

Several factors influence the cost of an electrical installation in Southport:

  • Size of the property – more rooms and circuits mean more materials and labour
  • Age and condition of the existing wiring
  • Access – solid walls, limited loft access or difficult floorboards increase time
  • Specification – higher-spec boards (full RCBO, surge protection, etc.) cost more
  • Making good – plastering and decorating is usually priced separately
  • Whether you need an EICR at the same time

Because every property is different, the only accurate way to know the cost is to have a qualified electrician assess the job and provide a written quote.

Why Prices Vary Between Electricians

You may see quite different quotes for the same job. This can be due to:

  • The quality of materials used
  • Whether the quote includes full testing and certification
  • The level of experience and insurance of the electrician
  • Whether the company is NAPIT registered or equivalent

It’s usually better to choose a properly qualified and registered electrician rather than simply going for the lowest price — especially on larger jobs such as rewires or consumer unit upgrades.

How TW Electrical Can Help

At TW Electrical we provide clear, no-obligation quotes for all types of electrical installation work in Southport and the surrounding areas. We’re NAPIT registered, our engineers are DBS checked, and we carry out both domestic and commercial electrical work.

Whether you need a consumer unit upgrade, a partial rewire, a full house rewire, or smaller installation work, we’re happy to take a look and give you a straightforward price.

Frequently Asked Questions

Do you offer free quotes?

Yes. We provide free, no-obligation quotes after assessing the work required.

Is making good included in rewire prices?

Usually not. Most electrical quotes cover the electrical work only. Plastering and decorating are typically arranged separately.

How long does a full house rewire take?

A typical 3-bed house rewire often takes between 5 and 10 days, depending on the property and access.

Do I need an EICR after major electrical work?

After a full rewire you will receive an Electrical Installation Certificate. An EICR is a different type of report used for ongoing condition assessments (especially important for landlords).

Do you cover areas outside Southport?

Yes — we regularly work in Formby, Ormskirk, Liverpool and across the Northwest.