- Companies
- Plumbers and heating engineers
- London
- Damp - Mould - Leak Detection Ltd
Damp - Mould - Leak Detection Ltd
- Company number
- 16310132
- Incorporated
- 12 Mar 20251 year trading
- Registered office
- 4TH Floor Silver Stream House, Fitzroy Street, London, W1T 6EB
- Nature of business
- Plumbing, heat and air-conditioning installation; Other specialised construction activities n.e.c.; Residents property management
Damp - Mould - Leak Detection Ltd is a 1-year-old private limited company registered in London, company number 16310132, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 12 December 2026, and its first CT600 is due at HMRC on 11 March 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.
Is this your company?
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Where Damp - Mould - Leak Detection Ltd is registered
The registered office is in London (W1T), in the Camden local authority area, London. Show W1T 6EB on a map.
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What happens if Damp - Mould - Leak Detection 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 12 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 13 Dec 2026 to 12 Jan 2027 | £150 |
| 1 to 3 months late | 13 Jan 2027 to 12 Mar 2027 | £375 |
| 3 to 6 months late | 13 Mar 2027 to 12 Jun 2027 | £750 |
| More than 6 months late | From 13 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16310132
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 March 2025 (1 year ago)
- Registered office
- 4TH Floor Silver Stream House, Fitzroy Street, London, W1T 6EB
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other specialised construction activities n.e.c. (SIC 43999)
Residents property management (SIC 98000) - Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 28 May 2026
- Previous names
- Damp & Mould Services Ltd (until 29 May 2025)
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in London
Other active plumbing and heating companies registered in London.
- Dan Plumming Ltd2020
- Danileica Private Plumbers Ltd2021
- Danis Plumbing & Heating Ltd2025
- Danni Plumbing Ltd2026
- Danplumbing Ltd2025
- Danskin Plumbing and Heating Ltd2026
- Dantel Plumbers Limited2016
- Darwish Plumbing Limited2026
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Damp - Mould - Leak Detection Ltd's accounts due?
Damp - Mould - Leak Detection Ltd's next accounts are due at Companies House by 12 December 2026 (in 60 days), covering the period to 31 March 2026.
When is Damp - Mould - Leak Detection 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 11 March 2026, due by 11 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Damp - Mould - Leak Detection Ltd still trading?
Damp - Mould - Leak Detection 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 Damp - Mould - Leak Detection Ltd do?
Damp - Mould - Leak Detection Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other specialised construction activities n.e.c. (SIC 43999); Residents property management (SIC 98000).
How old is Damp - Mould - Leak Detection Ltd?
Damp - Mould - Leak Detection Ltd was incorporated on 12 March 2025, 1 year ago.
What is the penalty if Damp - Mould - Leak Detection 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 Damp - Mould - Leak Detection 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.