- Companies
- Cleaning companies
- London
- Doonz Ltd
Doonz Ltd
- Company number
- 16117136
- Incorporated
- 4 Dec 20241 year trading
- Registered office
- Flat 7, 23 Fernwood Avenue, London, SW16 1RD
- Nature of business
- General cleaning of buildings; Window cleaning services
Doonz Ltd is a 1-year-old private limited company registered in London, company number 16117136, one of 5,627 cleaning companies in London. Companies House shows its accounts as overdue: they were due on 4 September 2026.
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.
Is this your company?
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Where Doonz Ltd is registered
The registered office is in London (SW16), in the Lambeth local authority area, London. Show SW16 1RD on a map.
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What happens if Doonz Ltd files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 5 Sep 2026 to 4 Oct 2026 | £150 |
| 1 to 3 months late | 5 Oct 2026 to 4 Dec 2026 | £375 |
| 3 to 6 months late | 5 Dec 2026 to 4 Mar 2027 | £750 |
| More than 6 months late | From 5 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 16117136
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 December 2024 (1 year ago)
- Registered office
- Flat 7, 23 Fernwood Avenue, London, SW16 1RD
- Nature of business
- General cleaning of buildings (SIC 81210)
Window cleaning services (SIC 81221) - Year end
- 31 December (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 3 December 2025
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.
- Doorstep Auto Spa Ltd2026
- Dora Prime Cleaning Ltd2017
- Dorcas Super Cleaners Ltd2020
- Doric Pro Solutions Ltd2016
- Doris Cleaning Services Ltd2016
- Dos Santos Handyman & Cleaning Ltd2023
- Dos Santos J Limited2019
- Double Time Detailing Ltd2026
All cleaning companies in London · All trades in London · Cleaning companies across the UK
Frequently asked questions
When are Doonz Ltd's accounts due?
Doonz Ltd's accounts were due at Companies House on 4 September 2026 and the register shows them as overdue.
When is Doonz 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 3 December 2025, due by 3 December 2026, and one for the period to 31 December 2025, due by 31 December 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Doonz Ltd still trading?
Doonz Ltd is listed as active on the Companies House register (checked 12 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 Doonz Ltd do?
Doonz Ltd is registered under General cleaning of buildings (SIC 81210); Window cleaning services (SIC 81221).
How old is Doonz Ltd?
Doonz Ltd was incorporated on 4 December 2024, 1 year ago.
What is the penalty if Doonz 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 Doonz Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.