- Companies
- Plumbers and heating engineers
- London
- Watermarks Plumbing Ltd
Watermarks Plumbing Ltd
- Company number
- 13008152
- Incorporated
- 10 Nov 20205 years trading
- Registered office
- 220 the Vale, London, NW11 8SR
- Nature of business
- Plumbing, heat and air-conditioning installation
Watermarks Plumbing Ltd is a 5-year-old private limited company registered in London, company number 13008152, one of 2,972 plumbing and heating companies in London. Companies House shows its accounts as overdue: they were due on 27 November 2025.
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 down £1,164 (-20.7%) on the year before, to £4,465.
- Current assets of £10K against £15K owed within a year: 0.7 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 3 years, 2021 to 2023.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2023 | £4,465 | £10K | £15K | 2 | |
| 30 Nov 2022 | £5,629 | £4,444 | £10K | 2 | |
| 30 Nov 2021 | £2,127 | £1,737 | £3,864 | 2 |
Where Watermarks Plumbing Ltd is registered
The registered office is in London (NW11), in the Barnet local authority area, London. Show NW11 8SR on a map.
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- Estia CCS LtdCleaning companies
- Perez Construction and Decoration LtdBuilders
- Brookstone London LtdBuilders
- Roadsters Choice LtdMotor traders
- Abbeydale Property SPV LtdProperty developers
- KT Roofing Contractors LtdRoofers
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Also registered at this address
15 other companies use the same registered office as Watermarks Plumbing Ltd.
- Berkfield Estates LimitedProperty developers
- CJLT Group LtdProperty developers
- E & E Construction LtdSpecialist contractors
- Feldex LtdLandscapers and gardeners
- Japonica House LimitedProperty developers
- Kalmar Building Services LimitedInstallers
- Lco Group LtdSpecialist contractors
- M & D London Services LtdCivil engineering
- Primetime Build LimitedProperty developers
- Qa Elite Builders LtdSpecialist contractors
- Silver Service London LtdCleaning companies
- Sparkitz LtdElectricians
- Tidehold One LimitedMachinery repair and installation
- UK Teknics LtdMachinery repair and installation
- Uniclean Detailing LtdCleaning companies
What happens if Watermarks Plumbing Ltd files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Nov 2025 to 27 Dec 2025 | £150 |
| 1 to 3 months late | 28 Dec 2025 to 27 Feb 2026 | £375 |
| 3 to 6 months late | 28 Feb 2026 to 27 May 2026 | £750 |
| More than 6 months late | From 28 May 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 28 Feb 2026 | £200 |
| 3 months late | 27 May 2026 | another £200 |
| 6 months late | 27 Aug 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 27 Feb 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
- 13008152
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 November 2020 (5 years ago)
- Registered office
- 220 the Vale, London, NW11 8SR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 27 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2023
- Last confirmation statement
- 7 November 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.
- Waterngas Limited2010
- Waterseal Plumbing and Heating Limited2026
- Waterway 2008 Ltd.2015
- Waterworks Plumbing Solutions Ltd2021
- Wayes Ltd2021
- Wayne Bates Limited2013
- Wayne Enterprises Solutions Limited2024
- WBNF Heating and Plumbing Ltd2022
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Watermarks Plumbing Ltd's accounts due?
Watermarks Plumbing Ltd's accounts were due at Companies House on 27 November 2025 and the register shows them as overdue.
When is Watermarks Plumbing 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 30 November 2024, due by 30 November 2025, and one for the period to 27 February 2025, due by 27 February 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Watermarks Plumbing Ltd still trading?
Watermarks Plumbing 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 Watermarks Plumbing Ltd do?
Watermarks Plumbing Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Watermarks Plumbing Ltd?
Watermarks Plumbing Ltd was incorporated on 10 November 2020, 5 years ago.
What is the penalty if Watermarks Plumbing 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 Watermarks Plumbing 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.