- Companies
- Machinery repair and installation
- London
- Sure Integrated Security Limited
Sure Integrated Security Limited
- Company number
- 02677174
- Incorporated
- 14 Jan 199234 years trading
- Registered office
- 3 Angerstein Business Park 12 Horn Lane, Greenwich, London, SE10 0RT
- Nature of business
- Repair of electrical equipment
Sure Integrated Security Limited is a 34-year-old private limited company registered in London, company number 02677174, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £76K (+13.1%) on the year before, to £656K.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £1.2M against £545K owed within a year: 2.2 times cover.
- 16 employees on average, up from 0 the year before.
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £656K | £87K | £1.2M | £545K | 16 |
| 31 Mar 2025 | £580K | £153K | £1.1M | £499K | 0 |
| 31 Mar 2024 | £559K | £41K | £884K | £311K | 16 |
| 31 Mar 2023 | £671K | £73K | £1M | £326K | 18 |
| 31 Mar 2022 | £669K | £156K | £901K | £316K | 18 |
| 31 Mar 2021 | £668K | £140K | £888K | £291K | 0 |
| 31 Mar 2020 | £667K | £635K | £1.2M | £622K | 18 |
Where Sure Integrated Security Limited is registered
The registered office is in London (SE10), in the Greenwich local authority area, London. Show SE10 0RT on a map.
Other trade companies in SE10
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- Runsite LtdBuilders
- Elborun Electrical LtdElectricians
- Keyline Property Maintenance LtdRoofers
- Liluil Prime Contractors LtdBuilders
- Ironmark LtdPlumbers and heating engineers
- Via Alta MGMT LtdMechanics and garages
- Santo Developments LtdBuilders
What happens if Sure Integrated 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 02677174
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 January 1992 (34 years ago)
- Registered office
- 3 Angerstein Business Park 12 Horn Lane, Greenwich, London, SE10 0RT
- Nature of business
- Repair of electrical equipment (SIC 33140)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 3 January 2026
- Previous names
- Sure Alarm Systems Ltd (until 24 Apr 2018)
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in London
Other active machinery repair and installation companies registered in London.
- Surefix100 Limited2024
- Surestart Generators Ltd2025
- Sviten Co Ltd2017
- SW Electrical Contractors Ltd2021
- Swift & Safe Solutions Ltd2023
- Swift Aero Maintenance Limited2024
- Swiftlock Ltd2022
- Swiss Collection Limited2020
All machinery repair and installation companies in London · All trades in London · Machinery repair and installation across the UK
Frequently asked questions
When are Sure Integrated Security Limited's accounts due?
Sure Integrated Security Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Sure Integrated Security Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Sure Integrated Security Limited still trading?
Sure Integrated 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 Sure Integrated Security Limited do?
Sure Integrated Security Limited is registered under Repair of electrical equipment (SIC 33140).
How old is Sure Integrated Security Limited?
Sure Integrated Security Limited was incorporated on 14 January 1992, 34 years ago.
What is the penalty if Sure Integrated 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 Sure Integrated 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.