House Rewiring Cost Calculator UK

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House Rewiring Cost Calculator | Free UK Tool
🇬🇧 Home Electrical · UK

House Rewiring Cost Calculator

Estimate the cost of a full or partial house rewire in seconds. Based on property size, age, location, and scope — using 2024/25 UK electrician rates from NICEIC and NAPIT registered contractors.

🏠 All property sizes covered
📍 Regional pricing applied
⚡ Full & partial rewires
💷 2024/25 UK electrician rates
£3,500
Average cost
2-bed house, full rewire
5–10
Days typical job
Depending on property size
25 yrs
Rewire lifespan
Modern installations last 25–40 yrs
100%
Free to use
No sign-up needed
Free Tool

Calculate your rewiring cost

Select your rewire type, enter property details, and get an instant cost estimate with a full breakdown — based on current UK electrician rates.

Your property & rewire details

Fill in the fields below for an instant estimate

Property details
rooms

Count all rooms: bedrooms, reception rooms, kitchen, bathrooms, hallways, and utility rooms.

Older properties with rubber or lead-sheathed wiring are more complex and time-consuming to rewire.

Rewiring an occupied property takes longer and costs 15–25% more — work must be done room by room to minimise disruption.

Additional works & extras

Your Rewiring Estimate

Based on 2024/25 UK electrician rates

⚡

Select your rewire type, fill in your property details, and click Calculate to get an instant cost estimate with full breakdown.

Scope of Works

What does a house rewire include?

A full rewire replaces all electrical wiring, accessories, and the consumer unit. Here’s what a qualified electrician will typically carry out.

🔌

New Consumer Unit

The old fuse box is replaced with a modern consumer unit (fuse board) fitted with RCDs and RCBOs for maximum protection against electric shock and fire.

£400 – £600
🏠

Ring Main Circuits

New ring main circuits are installed to each floor, powering all socket outlets. Modern wiring is run in twin-and-earth cable to current BS 7671 standards.

Included in rewire
💡

Lighting Circuits

Dedicated lighting circuits are installed throughout, with loops to each light fitting position. LED-ready dimmers and smart switch wiring can be included.

Included in rewire
🍳

Cooker & High-Load Circuits

Dedicated circuits for electric cookers, ovens, electric showers, and other high-draw appliances — each protected by an appropriately rated RCBO.

Included in rewire
📋

EICR Certificate

On completion, your electrician issues an Electrical Installation Condition Report and Building Regulations notification — essential proof of safe installation.

£100 – £250
🔊

Interlinked Smoke Alarms

Mains-powered, interlinked smoke and carbon monoxide alarms are required by Building Regulations in Scotland and strongly recommended in England and Wales.

£200 – £400
Reference

Rewiring costs by property size

Typical cost ranges for a full rewire in England and Wales (2024/25). London adds approximately 20–35%. Includes labour and materials, excludes redecoration.

Property type Typical low Typical high Duration
1-bed flat £1,500 £2,500 2–3 days
2-bed terraced house £2,500 £3,500 3–5 days
3-bed semi-detached £3,000 £4,500 5–7 days
4-bed detached house £4,500 £7,000 7–10 days
5-bed detached house £6,500 £10,000 10–14 days
Consumer unit only £400 £800 Half day
Cost Factors

What affects rewiring costs?

Rewiring costs vary considerably between properties. Here are the key factors that electricians consider when pricing a rewire job.

🏚️

Property age & wiring type

Pre-1970s properties with rubber-insulated or lead-sheathed wiring are significantly more complex. Fabric-covered wiring in Victorian and inter-war homes can add 20–40% to the cost.

👨‍👩‍👧

Occupied vs vacant

Rewiring an occupied home requires a room-by-room approach, temporary supplies, and more careful working — adding 15–25% compared to a vacant property.

📍

Location

London and South East England command 20–35% higher electrician day rates than the national average. Rural areas may incur travel supplements.

🧱

Wall construction

Solid-wall properties (pre-1920) are harder to chase and require surface-mounted conduit or trunking — adding time and materials versus cavity-wall construction.

🔢

Number of circuits

Every additional circuit — kitchen appliances, shower rooms, garages, EV chargers — adds to the scope. Larger, modern kitchens with multiple dedicated circuits increase costs.

⬆️

Scope upgrades

EV chargers, solar-ready wiring, underfloor heating circuits, smart home wiring, and external lighting all add meaningful cost to a rewire project.

Our Promise

Estimates based on real UK rates

Our rewiring cost calculator draws on current 2024/25 electrician day rates, materials pricing, and property complexity data from NICEIC and NAPIT approved contractors across the UK.

We apply regional location multipliers, property age complexity factors, occupancy adjustments, and scope add-ons — giving you the most accurate estimate available before you invite quotes.

  • ✓Based on 2024/25 UK electrician market rates
  • ✓Regional location uplift correctly applied
  • ✓Property age and wiring complexity factored in
  • ✓Occupancy, scope, and add-on costs included
  • ✓Duration estimate based on typical electrician productivity
  • ✓No data stored — runs entirely in your browser
Help & Info

House rewiring FAQs

How much does it cost to rewire a house in the UK?
The cost to rewire a house in the UK typically ranges from £1,500 for a small 1-bed flat to £10,000+ for a large 5-bed detached property. A standard 3-bed semi-detached house costs between £3,000 and £4,500 for a full rewire including a new consumer unit. London and the South East typically add 20–35% to these figures. Always obtain at least three quotes from NICEIC or NAPIT registered electricians.
Key signs that your home may need rewiring include: the property was built before 1970 and hasn’t been rewired since; you have an old-style fuse box with ceramic fuses rather than a modern consumer unit; wiring has rubber or fabric insulation (older PVC is cream or black); sockets are single rather than double; you experience frequent tripped fuses, flickering lights, or burning smells; or an Electrical Installation Condition Report (EICR) has given your installation a C1 or C2 classification.
Yes — it is possible to stay in your home during a rewire, but it requires careful planning. Electricians will work room by room and maintain power to at least part of the house. However, this approach takes longer and costs 15–25% more than rewiring a vacant property. You’ll need to move furniture and clear lofts and cupboards. Many homeowners choose to stay elsewhere for at least part of the work, particularly when the kitchen or main living areas are being worked on.
Yes. Electrical work in dwellings is covered by Part P of the Building Regulations in England and Wales. A NICEIC or NAPIT registered electrician is a “competent person” who can self-certify their work and notify Building Control on your behalf — this is included in the job cost. If you use an unregistered electrician, you must notify your local authority Building Control separately and pay for an inspection. Always insist on a completion certificate.
Duration depends on property size and whether it is vacant or occupied. A 2-bed terraced house typically takes 3–5 days when vacant; a 3-bed semi takes 5–7 days; and a large 4–5 bed detached can take 10–14 days. Occupied properties take 30–50% longer. Older properties with solid walls, complicated layouts, or challenging wiring types may take considerably longer than these estimates.
A rewire is one of the more disruptive home improvement projects. Electricians will need to chase (cut channels into) walls and ceilings, lift floorboards, and remove sockets and switches throughout the house. You should budget for redecoration after the work is complete — typically £1,000–£2,500 depending on the amount of patching required. Good electricians minimise damage but some disruption is unavoidable. Move valuables and clear access before work begins.
An Electrical Installation Condition Report (EICR) is an inspection and test of your home’s electrical installation carried out by a qualified electrician. It is legally required for private rental properties (every 5 years), and strongly recommended when buying a property, after a full rewire, or if your installation is over 10 years old. A standard EICR costs £100–£250 for a domestic property. On completion of a new rewire, your electrician will issue an Electrical Installation Certificate (EIC) rather than an EICR.
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