Full electrical installation condition
report in London
NICEIC & Part P certified
25 years of experience
Commercial & Residential cover
Fast EICR Testing London
From £79 with Same-Day Service
EICR London services start from £79 for studio apartments and 1-bedroom properties. Our qualified electricians bring 5 to 25 years of experience to every inspection. EICR certificates get delivered within 24-48 hours via email, so you’ll have your documentation fast.
Our London EICR testing covers all boroughs across the capital and surrounding areas. Same-day service is available for urgent compliance needs – just call Diligent Electrical Contractors before 10am. We’ve worked with major clients like London Underground and the Metropolitan Police, plus countless housing associations and private landlords.
Need a quick quote? Call now or book online. Our electricians are fully NICEIC registered and carry £2 million public liability insurance.

What's Included in Professional EICR Testing in London?
EICR inspection in London takes 24-48 hours, depending on your property size. Studios and 1-bedroom flats typically take 2-4 hours, while larger houses need 24-48 hours.
EICR certificate London complies with BS 7671:2018+A2:2022 – that’s the current 18th Edition wiring regulations. London EICR testing is performed by NICEIC registered electricians who have passed the City & Guilds 2391-52 qualification.
Here’s what we test:
- Continuity of protective conductors & ring circuits
- Insulation resistance (500V DC)
- Earth fault loop impedance
- RCD trip times & operation
- Circuit polarity checks
Residential and Commercial EICR Services
Residential EICR In London
Commercial EICR In London
Understanding EICR Codes
What They Mean
- C1 (Danger Present): Fix immediately - this makes your certificate unsatisfactory
- C2 (Potentially Dangerous): Urgent repair needed - also unsatisfactory
- C3 (Improvement Recommended): Advisory only - certificate stays satisfactory
- FI (Further Investigation): Needs immediate investigation - unsatisfactory
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Complete London Coverage
Local EICR Experts
- EICR Sutton (SM1–SM7): Residential & commercial inspections
- EICR Dulwich (SE21/SE22): Older wiring systems in period properties
- EICR Wimbledon (SW19): Victorian/Edwardian homes needing careful checks
- EICR Croydon (CR0–CR9): South London’s largest rental market
- EICR Streatham (SW16): Landlord selective licensing from Sept 2024
- EICR Brixton (SW2/SW9): Rental conversions & selective licensing compliance
Book Your Full electrical installation condition report in London Today
Instant quotes by phone or online
No hidden fees – clear, upfront pricing
Certificates delivered fast via email
Worked for Hundreds of Satisfied Customers
Jenny Clarke2025-08-26 Chose Diligent Electricals because of excellent reviews. I was not disappointed. Ishmael came at short notice for a trip switch issue. Excellent service, very professional, friendly and informative. Will definitely use again. Barney Woodbridge2025-07-24 Have used DEC twice in the past couple of months - great service, communication and both jobs completely extremely quickly. Don’t need to look anywhere else for an electrician in the area (live around Gipsy Hill station!) Monica Fyfe2025-06-23 Have used Diligent a handful of times now. Ishmael has always been professional, reliable and we feel reasonably priced. Highly recommend and we will continue to use! Tony Gough2025-06-21 Ishmael and Russel connected our garden room to the mains, with lighting, sockets, outside light and external power point. In the house they installed 4 additional sockets and a porch light, and replaced the bathroom light. They worked hard and completed everything in a day. I am confident that the work complies with the regulations. Their quote was very reasonable. Recommended, especially if you want work carried out promptly and efficiently. Daniel2025-06-17 Ishmael assessed the job, gave good advice, had expert knowledge and completed the job to a high standard for a good price. I recommend his work Anna Lubelska2025-06-13 Very efficient and professional. I’m a satisfied customer! Emma Turner2025-04-29 Fantastic service, prompt response, diligent approach - respectful and professional. Problem identified, solved, rectified and concluded within a short time frame. Would be happy to recommend based on my experiences. Niall McDonald2025-04-24 Excellent service from start to finish. Ishmael came out to inspect and fix an issue with our fuse box very quickly and diligently. His communication was excellent throughout. A seamless experience, would recommend. David Pribil2025-01-18 Ishmael was professional, efficient, and a pleasure to work with. Excellent service and highly recommended! Jack Stookes2024-12-16 Very impressed with the service provided by Diligent Electrical Contractors! Ishmael was friendly, super helpful and fitted our new bathroom extractor fan quickly and efficiently. Would definitely recommend!