How the New BS 7671 Amendment 4 Updates Will Affect You
What do the new BS 7671 Amendment 4 updates actually mean for you? Exeter Sparky breaks it down with practical advice for homeowners.
SAFETY & MAINTENANCE
Damo
8/15/20262 min read
You’ve probably heard that electrical regulations have changed again — BS 7671 Amendment 4 (A4).
But the real question is:
👉 Does it actually affect you?
Let’s cut through it properly. No overcomplicating — just what it means for your home, your safety, and your wallet.
First Things First: You’re Not Suddenly “Non-Compliant”
A big misconception is that when regulations change, your home instantly becomes unsafe or illegal.
That’s not how it works.
👉 Top Tip:
If your electrics were safe and compliant when installed, they’re still considered acceptable — unless something is now dangerous or faulty.
So… When Does It Affect You?
1. When You Have Electrical Work Done
This is the main one.
Any new work carried out now has to meet the latest standards, including A4 updates.
👉 Top Tip:
If you’re adding sockets, upgrading your consumer unit, or doing a renovation — the work will be done to the newest regs, even if the rest of your house isn’t.
2. If You’re Upgrading Your Consumer Unit
Fuse board upgrades are where you’ll notice the biggest changes.
Modern standards focus heavily on:
Better fault protection
Safer connections
Improved overall reliability
👉 Top Tip:
If you’re investing in an upgrade, you’re not just replacing a box — you’re stepping up the level of protection across your home.
3. If You’re a Landlord
If you rent out a property, this matters more.
EICRs (electrical reports) are judged against current standards, not the ones from 20 years ago.
👉 Top Tip:
Even if an installation was once acceptable, it could now be flagged for improvement — especially if it falls behind modern safety expectations.
4. If Your Electrics Are Older
This is where A4 updates quietly come into play.
They highlight areas where older installations may not meet today’s level of safety, even if they’re still functioning.
👉 Top Tip:
If your property hasn’t been checked in 10+ years, it’s worth getting an inspection — not because you have to, but because standards have moved on.
What You Don’t Need to Worry About
Let’s keep this grounded:
You don’t need to rewire your house because regs changed
You don’t need to upgrade everything overnight
You won’t fail anything just because it’s “old”
👉 Top Tip:
Focus on safety and condition, not just whether something matches the latest rulebook.
The Real Impact (Straight Talking)
The A4 updates won’t turn your world upside down — but they do raise the bar.
What that means for you:
New work = safer than ever
Upgrades = more reliable long-term
Inspections = more thorough and honest
It’s all about improving things bit by bit, not forcing unnecessary changes.
Final Thought from Exeter Sparky
Regulations change for a reason — usually because something’s been learned the hard way.
My job isn’t just to follow them — it’s to make sure your home benefits from them in a way that actually makes sense.
If you’re ever unsure whether your electrics are up to scratch, I’ll always give you a straight answer —
👉 what’s fine, what’s worth improving, and what can wait.
No scare tactics. No upsell. Just honest advice.