- Companies
- Cleaning companies
- London
- Treat Mould Ltd
Treat Mould Ltd
- Company number
- 15312389
- Incorporated
- 28 Nov 20232 years trading
- Registered office
- Silverstream House Treat Mould Ltd, 4TH Floor, 45 Fitzroy Street, Fitzrovia, London, W1T 6EB
- Nature of business
- Other cleaning services
Treat Mould Ltd is a 2-year-old private limited company registered in London, company number 15312389, one of 5,627 cleaning companies in London. Companies House shows its accounts as overdue: they were due on 31 August 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Treat Mould LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where Treat Mould Ltd is registered
The registered office is in London (W1T), in the Camden local authority area, London. Show W1T 6EB on a map.
Other trade companies in W1T
- Preschools Cleaning Company LtdCleaning companies
- Northheat Plumbing & Heating LtdPlumbers and heating engineers
- Leuk Lift Engineering UK LtdMachinery repair and installation
- Az Maintenance Services LimitedFinishing trades
- Braintree Property Service LtdBuilders
- Nona Construction & Retrofit LtdBuilders
- Denvav LimitedBuilders
- Marshall Roofing Services LtdRoofers
What happens if Treat Mould 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 | 1 Sep 2026 to 30 Sep 2026 | £150 |
| 1 to 3 months late | 1 Oct 2026 to 30 Nov 2026 | £375 |
| 3 to 6 months late | 1 Dec 2026 to 28 Feb 2027 | £750 |
| More than 6 months late | From 1 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2026 | £200 |
| 3 months late | 28 Feb 2027 | another £200 |
| 6 months late | 30 May 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 15312389
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 November 2023 (2 years ago)
- Registered office
- Silverstream House Treat Mould Ltd, 4TH Floor, 45 Fitzroy Street, Fitzrovia, London, W1T 6EB
- Nature of business
- Other cleaning services (SIC 81299)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 27 November 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.
- Trebol Cleaning Services Limited2009
- Trentham Car Cleaning Ltd2026
- Tresgance (UK) Ltd2010
- Tripl3 A Group Ltd2025
- Triple M Exterior Cleaning Ltd2026
- Triple3A Services Ltd2024
- Tripledhygiene Services Ltd2023
- Tritiya Ltd2025
All cleaning companies in London · All trades in London · Cleaning companies across the UK
Frequently asked questions
When are Treat Mould Ltd's accounts due?
Treat Mould Ltd's accounts were due at Companies House on 31 August 2026 and the register shows them as overdue.
When is Treat Mould Ltd's CT600 due?
The CT600 for the period to 30 November 2025 is due at HMRC by 30 November 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2026.
Is Treat Mould Ltd still trading?
Treat Mould Ltd is listed as active on the Companies House register (checked 13 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 Treat Mould Ltd do?
Treat Mould Ltd is registered under Other cleaning services (SIC 81299).
How old is Treat Mould Ltd?
Treat Mould Ltd was incorporated on 28 November 2023, 2 years ago.
What is the penalty if Treat Mould 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 Treat Mould Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.