- Companies
- Cleaning companies
- London
- Window Strike Ltd
Window Strike Ltd
- Company number
- 16218104
- Incorporated
- 30 Jan 20251 year trading
- Registered office
- 58 58 Delawyk Crescent, London, London, SE24 9JD
- Nature of business
- Window cleaning services
Window Strike Ltd is a 1-year-old private limited company registered in London, company number 16218104, one of 5,627 cleaning companies in London. Its next accounts are due at Companies House on 30 October 2026, and its first CT600 is due at HMRC on 29 January 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Window Strike Ltd is registered
The registered office is in London (SE24), in the Southwark local authority area, London. Show SE24 9JD on a map.
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What happens if Window Strike 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Oct 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 30 Jan 2027 | £375 |
| 3 to 6 months late | 31 Jan 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
- 16218104
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 January 2025 (1 year ago)
- Registered office
- 58 58 Delawyk Crescent, London, London, SE24 9JD
- Nature of business
- Window cleaning services (SIC 81221)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 29 January 2026
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in London
Other active cleaning companies registered in London.
- Windowspotless Limited2025
- Winjee Capital Limited2026
- Winster Cleaning Services Limited2022
- Wipe and Tidy Limited2022
- Wipe IT Services Ltd2025
- Wipewithhype Ltd2025
- Wise Detailing Limited2018
- Wise Utility Solutions Ltd.2016
All cleaning companies in London · All trades in London · Cleaning companies across the UK
Frequently asked questions
When are Window Strike Ltd's accounts due?
Window Strike Ltd's next accounts are due at Companies House by 30 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Window Strike Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 29 January 2026, due by 29 January 2027, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Window Strike Ltd still trading?
Window Strike 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 Window Strike Ltd do?
Window Strike Ltd is registered under Window cleaning services (SIC 81221).
How old is Window Strike Ltd?
Window Strike Ltd was incorporated on 30 January 2025, 1 year ago.
What is the penalty if Window Strike 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 Window Strike 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.