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  • Sliemore
  • 3,112(303 reviews)

We are offering following services Installation Services Electrical Maintenance, Emergency Electrical Repairs, Electrical Upgrades, Safety Inspections and Testing, Security System Installations, Data and Communication Wiring, Renewable Energy Installations, Fire Alarm Systems, Commercial and Industrial Services, Home Automation Systems, Electrical Design and Consultation, Energy Efficiency Audits, Exterior Lighting Installations, Generator Installation and Maintenance, Fault Diagnosis and Repair, Lightning Protection Systems, HVAC Electrical Integration, Underfloor Heating Systems, Electric Vehicle Charging Station Installation,

Sliemore

UK

How to Calculate the Cost of Rewiring a House in the UK

Rewiring a house is an essential upgrade that ensures electrical safety and compliance with modern standards. Calculating the cost of rewiring involves several factors, including the size of the house, the complexity of the job, the condition of the existing wiring, the quality of materials used, and labor rates. Here’s a step-by-step guide to help you calculate the cost of rewiring a house in the UK:

Step-by-Step Guide to Calculating Rewiring Costs

  1. Assess the Scope of Work
    • Full Rewiring: Involves replacing all wiring, outlets, switches, and possibly upgrading the consumer unit (fuse box). This is more comprehensive and generally more expensive.
    • Partial Rewiring: Covers specific areas of the house, such as the kitchen or a single floor, and is typically less extensive and lower in cost.
  2. Estimate Based on House Size
    • Small Homes (1-2 Bedrooms): Typically costs between £2,000 and £4,000.
    • Medium Homes (3-4 Bedrooms): Generally ranges from £4,000 to £8,000.
    • Large Homes (5+ Bedrooms): Costs can be £8,000 to £15,000 or more.
  3. Material Costs
    • Wiring and Cables: Estimate £500 - £1,000 for quality cables and consumables, depending on the house size and complexity.
    • Sockets and Switches: Typically £200 - £500 for standard installations.
    • Consumer Unit: £100 - £500, based on the type and brand (ensuring compliance with the latest safety standards including RCD protection).
    • Additional Components: Such as light fittings, smoke alarms, and other fixtures may add £100 - £300.
  4. Labor Costs
    • Hourly Rates: Electricians typically charge between £40 and £60 per hour in the UK, but rates may be higher in urban areas like London.
    • Total Labor: Labor often constitutes around 50-60% of the total cost. For a medium-sized house, the labor cost might range from £2,000 to £4,800.
  5. Inspection and Certification
    • Electrical Installation Condition Report (EICR): Necessary for ensuring compliance with the latest IET Wiring Regulations (BS 7671). Typically costs £120 - £250.
    • Final Testing and Certification: Including issuing an Electrical Installation Certificate (EIC), can cost £150 - £300.
  6. Making Good
    • Plastering and Decorating: After rewiring, plastering chased walls, repairing ceilings, and repainting are essential to restore the home’s appearance. Estimate £300 - £1,000 depending on the extent of the damage.

Example Cost Breakdown

For a 3-bedroom house, a detailed cost breakdown might look like this:

  1. Materials:
    • Wiring and Cables: £800
    • Sockets and Switches: £300
    • Consumer Unit: £300
    • Additional Components: £200
    • Total Materials: £1,600
  2. Labor:
    • Hourly Rate: £50
    • Total Hours: 80 (approximated for a medium-sized house)
    • Total Labor: £4,000
  3. Inspection and Certification:
    • EICR: £200
    • Final Testing and Certification: £200
    • Total Inspection and Certification: £400
  4. Making Good:
    • Plastering and Decorating: £600
    • Total Making Good: £600

Total Estimated Cost for Rewiring: £1,600 (Materials) + £4,000 (Labor) + £400 (Inspection and Certification) + £600 (Making Good) = £6,600

Factors That May Increase Costs

  1. Accessibility
    • Hard-to-Reach Areas: Older homes or those with complicated architecture may pose access issues, increasing labor time and cost.
  2. Additional Work
    • Upgrading Systems: Additional work such as upgrading to a three-phase electrical system or integrating smart home technologies can increase costs.
  3. Remedial Work
    • Structural Adjustments: Any required structural adjustments, like moving walls to accommodate new wiring, will add to the budget.
  4. Region
    • Location: Rewiring costs can be significantly higher in urban centers like London compared to rural areas due to differences in labor rates and cost of living.

Tips for Accurate Estimation

  1. Professional Quotes:
    • Obtain Multiple Quotes: Get detailed quotes from several qualified electricians or electrical contractors to compare prices and services offered.
    • Detailed Breakdowns: Ensure each quote includes a detailed breakdown of costs, including labor, materials, inspection, and any additional work.
  2. Check Credentials:
    • Qualified Electricians: Ensure the electricians are certified and registered with a competent person scheme.
    • Experience: Verify their experience with similar rewiring projects to ensure quality and compliance.
  3. Plan and Budget:
    • Assess Needs: Understand your needs, prioritize essential areas, and plan the rewiring project accordingly.
    • Proper Budgeting: Factor in all potential costs, including unforeseen expenses, to ensure your budget covers the entire project.

Conclusion

Calculating the cost of rewiring a house in the UK involves considering various factors such as the scope of work, house size, material quality, labor rates, inspection, and certification requirements. Typical costs for rewiring a 3-bedroom house range from £4,000 to £8,000, with detailed cost components including materials, labor, inspection, and making good. Obtaining multiple quotes, verifying electrician credentials, and detailed budgeting are crucial for accurately estimating the cost and planning a smooth rewiring project. Proper preparation and clear communication with your electrician will ensure a safe, compliant, and efficient electrical upgrade.