Independent Publication · Not Affiliated with Marks Electrical
CMA Case:Closed
Final Infringement Notice:Issued
Penalty:£720,000
Consumer Redress:~£600,000
Customers:Nearly 40,000
Refund Programme:Ongoing
Latest Trading Update:30 Sep 2026

Last updated 5 October 2026

Marks Electrical CMA Documents & Regulatory Filings

The primary-source registry behind every claim on this site — CMA decisions, RNS announcements, the annual report, and Companies House records — each linked to its original.

5 Key Facts
  • 0110 primary sources registered.
  • 02Every source has a publisher, date, type, and original URL.
  • 03Sources are checked and dated.
  • 04Media coverage is listed separately, not reproduced.
  • 05Read the original document — don't take our word for it.
IDDocumentSource
S001
Marks Electrical: consumer protection enforcement case
CMA Case Page
Competition and Markets Authority / GOV.UK · 2025-11-18
Open
S002
CMA orders Marks Electrical to refund customers over pre-selected extra charges
CMA Press Release
Competition and Markets Authority / GOV.UK · 2026-06-18
Open
S003
Marks Electrical Final Infringement Notice
Final Infringement Notice
Competition and Markets Authority · 2026-07-02
Open
S004
Conclusion of CMA Investigation
RNS Announcement
Marks Electrical Group plc / RNS · 2026-06-18
Open
S005
FY26 Financial Results
RNS Announcement
Marks Electrical Group plc / RNS · 2026-06-19
Open
S006
FY2026 Annual Report and Accounts
Annual Report
Marks Electrical Group plc · 2026-08-01
Open
S007
Marks Electrical Group plc (13509635)
Companies House Record
Companies House · —
Open
S008
Marks Electrical Limited (04463433)
Companies House Record
Companies House · —
Open
S009
FY25 Results
RNS Announcement
Marks Electrical Group plc / RNS · 2025-06-25
Open
S010
Trading Update and Chief Financial Officer Appointment
RNS Announcement
Marks Electrical Group plc / RNS · 2026-09-30
Open

Media coverage

Attributable headlines from reputable publications. Articles are linked, not reproduced. Inclusion of a headline does not endorse every word of the underlying article.

ANALYSIS

This registry is maintained as a living record. New filings, RNS announcements and CMA updates are added as they become available.

Marks Electrical Files

An Independent Investigation

An independent investigation into Marks Electrical, consumer law and the CMA case. Source-led, documented, and accountable.

Marks Electrical Files is an independent publication and is not affiliated with Marks Electrical Group plc or Marks Electrical Limited.

This website reports information from regulatory decisions, corporate filings, company announcements, financial statements, Companies House records and attributable news reporting. Regulatory findings are identified as such. Commentary and analysis are separately labelled. Readers are encouraged to review the original documents linked throughout this publication.

© 2026 Marks Electrical Files · Last updated 5 October 2026