- Companies
- Specialist contractors
- Intruder Detection Services Limited
Intruder Detection Services Limited
- Company number
- 05397864
- Incorporated
- 18 Mar 200521 years trading
- Registered office
- 82C Chesterton Road, London, W10 6EP
- Nature of business
- Other specialised construction activities n.e.c.
Intruder Detection Services Limited is a 21-year-old private limited company, company number 05397864, one of the UK's specialist construction companies. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 down £2,873 (-68.6%) on the year before, to £1,313.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £19K against £18K owed within a year: 1.1 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1,313 | £19K | £18K | 1 | |
| 31 Mar 2024 | £4,186 | £17K | £22K | 1 | |
| 31 Mar 2023 | £1,359 | £27K | £28K | 1 | |
| 31 Mar 2022 | £1,029 | £33K | £38K | 2 | |
| 31 Mar 2021 | £3,150 | £42K | £53K | 1 | |
| 31 Mar 2020 | £1,979 | £46K | £58K | 1 | |
| 31 Mar 2019 | £100 | ||||
| 31 Mar 2018 | -£6,860 | £24K | £24K | £31K | 2 |
| 31 Mar 2017 | -£2,480 | £33K | £6,394 | ||
| 31 Mar 2016 | £1,678 | £35K | £55K | £21K |
Who runs and owns Intruder Detection Services Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| S*** M*** | Director | Mar 2005 |
| J*** M*** | Secretary | Mar 2005 |
4 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| Temple Secretaries Limited | Corporate Nominee Secretary | Mar 2005 | Mar 2005 |
| M*** M*** | Director | Nov 2008 | Oct 2022 |
| M*** M*** | Director | Feb 2007 | May 2007 |
| Company Directors Limited | Nominee director (company) | Mar 2005 | Mar 2005 |
Person with significant control
Where Intruder Detection Services Limited is registered
The registered office is in the W10 postcode district, in the Kensington and Chelsea local authority area, London. Show W10 6EP on a map.
Other trade companies in W10
- Hollisandvane LtdCleaning companies
- A & R Property Investments LtdProperty developers
- Central Auto Specialists LtdMechanics and garages
- Winjee Capital LimitedCleaning companies
- Melville Enterprise LtdSpecialist contractors
- Tornado Cleans LtdCleaning companies
- A A Healy LtdJoiners and carpenters
- Norvexis Holdings LtdProperty developers
What happens if Intruder Detection Services 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 05397864
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 March 2005 (21 years ago)
- Registered office
- 82C Chesterton Road, London, W10 6EP
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 10 July 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies
Other active specialist construction companies.
Frequently asked questions
When are Intruder Detection Services Limited's accounts due?
Intruder Detection Services Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Intruder Detection Services Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Intruder Detection Services Limited still trading?
Intruder Detection Services 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 Intruder Detection Services Limited do?
Intruder Detection Services Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Intruder Detection Services Limited?
Intruder Detection Services Limited was incorporated on 18 March 2005, 21 years ago.
Who runs Intruder Detection Services Limited?
Intruder Detection Services Limited has 1 active director, the longest-serving appointed in Mar 2005. Their names and service addresses are on the Companies House register.
Who owns Intruder Detection Services Limited?
One person or company has significant control of Intruder Detection Services Limited: an individual (owns 75% or more of the shares).
What is the penalty if Intruder Detection Services 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 Intruder Detection Services 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.