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Resources
# Practical electrical guides from working engineers
Plain-English advice on the things that actually matter — what compliance is required, when to repair vs replace, and how to avoid the expensive mistakes we see every week.

Comparison
## EICR vs rewire vs consumer unit upgrade: which do you need?
An EICR diagnoses, a consumer unit upgrade fixes protection, a rewire replaces cabling. Which one your property actually needs, and in what order.

6 August 2026Read article 

Rewiring
## How long does a house rewire take?
Stage-by-stage timings for first fix, second fix, testing and making good — plus what pushes a rewire to the longer end of the range.

6 August 2026Read article 

Compliance
## Do I need an EICR to sell my house?
Not legally — but the TA6 form and your buyer's solicitor will ask about electrical certificates. When it pays to get one before you list.

6 August 2026Read article 

Consumer Units
## What size consumer unit do I need?
How to count circuits, allow for the main switch and surge protection, and leave spare ways for an EV charger or heat pump later.

6 August 2026Read article 

Consumer Units
## Fuse board vs consumer unit: what's the difference?
Same job, different generations. How to identify which you have in 30 seconds, and when replacement is genuinely necessary.

6 August 2026Read article 

Compliance
## How much does an EICR cost in London? (2026 guide)
What landlords and homeowners actually pay for an Electrical Installation Condition Report — broken down by property size, location and remedial work.

30 April 2026Read article 

Home Safety
## 10 signs your house needs rewiring
Warm sockets, frequent trips, flickering lights — when these symptoms point to deeper wiring problems and when they don't.

30 April 2026Read article 

EV & Energy
## EV charger home installation: a South London guide
Everything you need to know before booking an EV charger install — supply capacity, OZEV grants, smart tariffs and what installers should check.

30 April 2026Read article 

### 24/7 Electrical Ltd
NICEIC-approved electricians. Available 24/7 for emergencies and planned work across London & South East.

 0203 576 6961 07557 781201 info@24-7electrician.co.ukHead Office

51 High Street, Edenbridge, Kent TN8 5AL

Croydon Office

104 Friars Wood, Croydon, CR0 9JP

Crawley Office

4 Evans Close, Maidenbower, Crawley RH10 7WN

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ServicesEmergency Repairs
- House Rewiring
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Areas We Cover
- Croydon
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- Edenbridge
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