BS 7671 Amendment 4 comes into effect in 2026. It brings changes to consumer units, surge protection, and new installations. Here is what it means for your home.
Local Context
Whether you are renovating in Cliftonville, extending in Broadstairs, or upgrading your consumer unit in Ramsgate, the 18th Edition Wiring Regulations evolve with periodic amendments. Amendment 4 (2026) reinforces requirements for surge protection, consumer unit construction, and some installation practices. Existing compliant installations are not automatically "wrong" - but new work and upgrades will need to meet the latest rules.
Myth Buster
Myth: I have to rip out all my wiring to comply with Amendment 4.
Fact: Amendment 4 applies to new work and major alterations. Existing installations that met the rules when installed are not suddenly non-compliant. When you have new circuits, a consumer unit replacement, or an EICR - that is when the latest standards apply. An electrician will design and install to the current amendment.
Roy's Checklist
Actionable steps you can take:
- If you are planning a consumer unit upgrade, ask your electrician about Amendment 4 compliance
- Surge protection (SPD) is increasingly expected for domestic installations - discuss it at quote stage
- For new builds or major renovations, your electrician will design to the current regulations
- Keep certificates for any new work - they prove compliance at the time of installation
Safety Red Line
If an electrician tells you your installation is dangerous or non-compliant, request a written report (EICR) with specific codes. Do not agree to expensive work without understanding what is wrong and why.
Need an Amendment 4 Compliant Installation?
We design and install to the latest BS 7671 requirements. Consumer unit upgrades, surge protection, and new circuits across Margate, Ramsgate, and Broadstairs.
Professional Safety Checklist
- Isolate power at the consumer unit before any electrical work
- Use a voltage tester to confirm circuits are dead
- Ensure all work complies with BS 7671 (IET Wiring Regulations)
- Keep a record of any modifications for future reference
- When in doubt, consult a qualified electrician
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Expert Electrical Advice in Thanet
Still have questions? Contact Roy at Thanet Electrical for a free consultation in Margate, Ramsgate, or Broadstairs.
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