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9 March 2026 5 min read

How Much Does a Fuse Board Upgrade Cost in Winchester?

How Much Does a Fuse Board Upgrade Cost in Winchester? — Orsidaen Electrical Services Winchester blog

A fuse board upgrade — also known as a consumer unit replacement — is one of the most common electrical jobs we carry out across Winchester and the surrounding Hampshire villages. It's also one where homeowners often struggle to find clear, honest pricing information online. This guide gives you a straightforward breakdown of what a fuse board upgrade costs in Winchester, what affects the price, and what you should expect from the job.

What Does a Fuse Board Upgrade Cost in Winchester?

For a standard replacement on a typical property, costs range from £800 to £1,200 depending on the number of circuits. Here's how that breaks down by property type:

- 1–2 bedroom flat (4–6 circuits): £600–£800 - 3 bedroom house (8–10 circuits): £800–£1,000 - 4 bedroom house (10–14 circuits): £900–£1,100 - 5+ bedroom house or complex installation (14+ circuits): £1,000–£1,200 - Commercial premises: Price on application

All prices include the new metal-clad consumer unit, MCBs, RCDs, labour, testing, and a full Electrical Installation Certificate. There are no hidden charges.

What Affects the Cost?

The main factor is the number of circuits — each circuit requires its own MCB (Miniature Circuit Breaker), and larger homes have more circuits for lighting, sockets, cookers, showers, and so on. Beyond that, several other factors can affect the final price:

Earthing Upgrades

If your property has an older earthing arrangement (TN-C-S or TT), it may need upgrading to meet current regulations. This is relatively uncommon in modern Winchester properties but more likely in older rural homes.

Additional RCD Protection

Current regulations (18th Edition Wiring Regulations) require RCD protection on most circuits. If your existing wiring doesn't support this, additional work may be needed.

Condition of Existing Wiring

If your wiring is old or in poor condition, issues found during testing may require remedial work before the new consumer unit can be connected. We'll always advise you of any additional work needed before proceeding.

Access and Location

Consumer units in awkward locations (loft cupboards, under stairs, or in outbuildings) can take longer to work on, which may affect the price slightly.

What's Included in the Price?

A professional fuse board upgrade from Orsidaen Electrical Services includes:

- Supply and installation of a new metal-clad consumer unit - MCBs (Miniature Circuit Breakers) for each circuit - RCD (Residual Current Device) protection - Full testing of every circuit - Electrical Installation Certificate (required for Building Control and property sales) - Notification to your local authority (where required)

How Long Does It Take?

Most fuse board upgrades are completed within 4–6 hours. Your power will be off for part of this time — typically 2–3 hours — while the new unit is installed and circuits are reconnected. We arrange a convenient time and keep disruption to a minimum.

Why Upgrade Your Fuse Board?

An outdated consumer unit — particularly one with rewirable fuses or a plastic casing — poses a genuine safety risk. Modern consumer units with RCD protection can detect earth faults and cut the power in milliseconds, significantly reducing the risk of electric shock and fire. They're also a requirement for most home insurance policies and are increasingly expected by mortgage surveyors and buyers when properties change hands.

Getting a Quote

The best way to get an accurate price for your property is to arrange a free site survey. Every home is different, and a quick visit allows us to assess your existing installation, count the circuits, and give you a fixed-price quote with no surprises.

Orsidaen Electrical Services carries out fuse board upgrades across Winchester, New Alresford, Stockbridge, Whitchurch, Kings Worthy, and all surrounding Hampshire villages. As NICEIC Approved Contractors, all our work is fully certified. Call us on 01962 809912 or use our contact form to arrange a free estimate.