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    Electrical Remedial Works Guide 2026

    Complete guide to electrical remedial works following EICR reports. From minor repairs to full rewires, ensuring BS 7671:2018 compliance and electrical safety.

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    NICEIC Approved
    BS 7671:2018 Compliant
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    Already have your EICR, fire alarm or emergency lighting report?

    Upload it and get an instant, itemised remedial works estimate in minutes — no waiting for a site visit. Our AI reads the defect codes straight from your report and prices the C1, C2 and FI items automatically.

    What Are Electrical Remedial Works?

    Electrical remedial works are repairs, improvements, or upgrades required to bring electrical installations up to current safety standards. These works are typically identified during EICR testing and must be completed to ensure compliance with BS 7671:2018 wiring regulations and electrical safety requirements.

    Common Remedial Works

    • RCD installation and upgrades
    • Consumer unit replacements
    • Earth bonding improvements
    • Circuit rewiring and upgrades
    • Socket and switch replacements
    • Surge protection device installation
    • Emergency lighting installations
    • Fire alarm system installations

    EICR Classification Codes

    C1
    Danger Present
    • • Immediate danger to persons
    • • Risk of injury or death
    • • Requires immediate attention
    • • Installation should be disconnected
    URGENT REPAIR
    C2
    Potentially Dangerous
    • • Potentially dangerous defect
    • • Urgent remedial action required
    • • Could become dangerous
    • • Should be repaired quickly
    PRIORITY REPAIR
    C3
    Improvement Recommended
    • • Does not comply with current standards
    • • Not necessarily dangerous
    • • Improvement recommended
    • • Plan for future upgrade
    PLANNED UPGRADE
    FI
    Further Investigation
    • • Requires further investigation
    • • Cannot be fully assessed during inspection
    • • May need specialist investigation
    • • Could require remedial action
    INVESTIGATION NEEDED

    Remedial Actions for FI (Further Investigation) Items

    FI items require additional investigation before determining if remedial works are needed. These investigations often reveal hidden defects that require immediate attention.

    Investigation Methods:

    • • Thermal imaging surveys
    • • Destructive testing of concealed cables
    • • Specialist access equipment
    • • Power quality analysis
    • • Insulation resistance testing

    Potential Remedial Outcomes:

    • • Cable replacement in walls/floors
    • • Junction box accessibility improvements
    • • Circuit rerouting
    • • Equipment upgrades or replacements
    • • Additional protective devices

    Cost Implications of FI Items:

    FI investigations typically cost £200-£800 depending on complexity. If remedial works are subsequently required, costs can range from £500-£5,000+ depending on the nature and extent of defects discovered.

    Critical Action Required

    Any installation with C1 or C2 defects receives an UNSATISFACTORY rating and requires immediate remedial works before the installation can be considered safe for continued use.

    • • C1 defects must be rectified immediately
    • • C2 defects require urgent attention within 28 days
    • • Installation may need to be isolated until repairs are completed
    • • Insurance may be invalidated until defects are resolved

    Remedial Works Costs

    Common Repairs

    • Socket replacement£25-£45
    • Light switch replacement£20-£35
    • RCD installation£150-£250
    • Earth bonding£120-£200
    • Circuit repair£80-£180

    Major Works

    • Consumer unit replacement£400-£800
    • Full rewire (3-bed house)£3,500-£6,000
    • Kitchen rewire£800-£1,500
    • Bathroom electrical work£500-£1,200
    • Surge protection installation£200-£400

    Cost Factors

    • Severity of defects
    • Number of circuits affected
    • Property size and complexity
    • Access to electrical equipment
    • Materials and equipment required
    • Urgency of required works
    • Building disruption required
    • Testing and certification
    • Location and travel distance

    Remedial Works Process

    1

    EICR Assessment

    Review EICR report and identify all C1, C2, and C3 defects requiring remedial action.

    2

    Detailed Survey

    Conduct thorough site survey to assess scope of work and access requirements.

    3

    Quotation

    Provide detailed quotation with materials, labor costs, and timeline for completion.

    4

    Works Execution

    Carry out remedial works with NICEIC qualified electricians using approved materials.

    5

    Testing & Verification

    Complete testing and verification to ensure all works meet BS 7671:2018 standards.

    6

    Certification

    Issue completion certificates and updated EICR showing satisfactory status.

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