- Companies
- Electricians
- London
- M1 Security Limited
M1 Security Limited
- Company number
- 05025982
- Incorporated
- 26 Jan 200422 years trading
- Registered office
- 14B Aldermans Hill, Palmers Gren, London, N13 4PN
- Nature of business
- Electrical installation; Security systems service activities
M1 Security Limited is a 22-year-old private limited company registered in London, company number 05025982, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £2,402 (+3.9%) on the year before, to £65K.
- Net assets rose in 5 of 5 year-on-year comparisons on record.
- Current assets of £97K against £37K owed within a year: 2.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £65K | £97K | £37K | 1 | |
| 31 Jan 2024 | £62K | £80K | £18K | 1 | |
| 31 Jan 2023 | £52K | £84K | £32K | 1 | |
| 31 Jan 2022 | £39K | £95K | £55K | 1 | |
| 31 Jan 2021 | £27K | £84K | £56K | 1 | |
| 31 Jan 2020 | £18K | £80K | £65K | 1 |
Who runs and owns M1 Security Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| R*** P*** | Director | Jan 2004 |
| N*** P*** | Secretary | Jan 2004 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| Apex Company Services Limited | Corporate Nominee Secretary | Jan 2004 | Jan 2004 |
| Apex Nominees Limited | Nominee director (company) | Jan 2004 | Jan 2004 |
Person with significant control
Where M1 Security Limited is registered
The registered office is in London (N13), in the Enfield local authority area, London. Show N13 4PN on a map.
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- XP Plastering & Rendering LtdBuilders
- MD Crafted LtdSpecialist contractors
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- Danni Plumbing LtdPlumbers and heating engineers
What happens if M1 Security Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 05025982
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 January 2004 (22 years ago)
- Registered office
- 14B Aldermans Hill, Palmers Gren, London, N13 4PN
- Nature of business
- Electrical installation (SIC 43210)
Security systems service activities (SIC 80200) - Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 26 January 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in London
Other active electrical contractors registered in London.
- M25 Electrical Contractors Ltd2020
- Ma Electrics LDN Ltd2022
- Mabbs Way Electrical Limited2022
- Mabe Vic Ltd2022
- Mabloon Ltd2026
- Mac Business Services Ltd2015
- Mac Electrical Ltd2024
- Madali Electric Limited2024
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are M1 Security Limited's accounts due?
M1 Security Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is M1 Security Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is M1 Security Limited still trading?
M1 Security Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does M1 Security Limited do?
M1 Security Limited is registered under Electrical installation (SIC 43210); Security systems service activities (SIC 80200).
How old is M1 Security Limited?
M1 Security Limited was incorporated on 26 January 2004, 22 years ago.
Who runs M1 Security Limited?
M1 Security Limited has 1 active director, the longest-serving appointed in Jan 2004. Their names and service addresses are on the Companies House register.
Who owns M1 Security Limited?
One person or company has significant control of M1 Security Limited: an individual (has significant influence or control through a firm).
What is the penalty if M1 Security Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View M1 Security Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.