- Companies
- Installers
- London
- Kensington Security Doors Ltd
Kensington Security Doors Ltd
- Company number
- 07574237
- Incorporated
- 22 Mar 201115 years trading
- Registered office
- 2 Park Street, Chelsea Creek, London, SW6 2FN
- Nature of business
- Other construction installation
Kensington Security Doors Ltd is a 15-year-old private limited company registered in London, company number 07574237, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £463 (+0.8%) on the year before, to £57K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £293K against £236K owed within a year: 1.2 times cover.
- 3 employees on average, down from 4 the year before.
- Balance sheets on record for 10 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £57K | £66K | £293K | £236K | 3 |
| 31 Dec 2024 | £57K | £43K | £211K | £150K | 4 |
| 31 Dec 2023 | -£48K | £47K | £177K | £210K | 4 |
| 31 Dec 2022 | -£5,802 | £67K | £122K | £104K | 3 |
| 31 Dec 2021 | -£2,553 | £51K | £132K | £103K | 3 |
| 31 Dec 2020 | £7,056 | £25K | £104K | £59K | 2 |
| 31 May 2020 | -£33K | £92K | £122K | £161K | 2 |
| 31 May 2019 | -£30K | £120K | £159K | ||
| 31 May 2018 | -£22K | £77K | £104K | ||
| 31 May 2017 | -£11K | £107K | £122K |
Where Kensington Security Doors Ltd is registered
The registered office is in London (SW6), in the Hammersmith and Fulham local authority area, London. Show SW6 2FN on a map.
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What happens if Kensington Security Doors Ltd 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 07574237
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 March 2011 (15 years ago)
- Registered office
- 2 Park Street, Chelsea Creek, London, SW6 2FN
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 3 July 2026
- Previous names
- London Security Doors Ltd (until 24 Aug 2012)
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Kensington Standard Developments Limited2021
- Kesz Construction Ltd2017
- Kevin Dryliner Ltd2026
- Key Builders Ltd2015
- Key Consulting Ltd2024
- KG Decor Ltd2011
- KGW Rigging Ltd2026
- Khouses Construction Ltd2022
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Kensington Security Doors Ltd's accounts due?
Kensington Security Doors Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Kensington Security Doors Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Kensington Security Doors Ltd still trading?
Kensington Security Doors Ltd 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 Kensington Security Doors Ltd do?
Kensington Security Doors Ltd is registered under Other construction installation (SIC 43290).
How old is Kensington Security Doors Ltd?
Kensington Security Doors Ltd was incorporated on 22 March 2011, 15 years ago.
What is the penalty if Kensington Security Doors Ltd 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 Kensington Security Doors Ltd 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.