Electrical Testing & Certification
Electrical Testing & Certification You Can Trust
How It Works
Arrange a Survey
Call or email to book a convenient time — we confirm scope and access requirements and note any previous certificates or known issues.
Thorough Testing
NAPIT-registered electricians carry out dead and live testing, insulation resistance, earth continuity, RCD and polarity checks, and record results against BS 7671.
Clear Certification
We issue an EICR or relevant certificate with a summary of findings, remedial recommendations and a written workmanship guarantee where applicable.
Why Choose us for Electrical Testing & Certification?
Regulation-led confidence
All inspections follow BS 7671 and are done by NAPIT-registered electricians — reports accepted by landlords, insurers and building control.
15+ years' practical experience
Owned and operated by Daryl Chell, DC Electrix brings 15 years of domestic and commercial testing expertise to every job, from flat conversions to multi-phase fit-outs.
Fast local response
Based in Knebworth we serve Hertfordshire towns with same-week visits where possible and straightforward, insurer-friendly reports.
What we test — DC Electrix performs the full suite of verification tests required for compliance and safety: dead and live circuit checks, insulation resistance, earth continuity, polarity, loop impedance and RCD tripping. Results are recorded against BS 7671 and presented in a clear, itemised report so you see exactly which circuits passed and which need attention.
Who needs it — EICRs and electrical certification are essential for landlords, vendors, insurers and businesses. We prepare reports that meet landlord compliance checks, sales conveyancing requirements and commercial health & safety records. If remedial work is required, DC Electrix can provide a written scope and carry out repairs or upgrades to consumer units and wiring to get you back to compliance.