- Companies
- Plumbers and heating engineers
- Wimbledon
- NJP Plumbing Limited
NJP Plumbing Limited
- Company number
- 06418430
- Incorporated
- 5 Nov 200718 years trading
- Registered office
- 26 Chester Road, Wimbledon, London, SW19 4TW
- Nature of business
- Plumbing, heat and air-conditioning installation
NJP Plumbing Limited is a 18-year-old private limited company registered in Wimbledon, company number 06418430, one of 14 plumbing and heating companies in Wimbledon. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
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 up £19K (+4.1%) on the year before, to £479K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £272K against £396K owed within a year: 0.7 times cover.
- 1 employee on average, down from 2 the year before.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2024 | £479K | £272K | £396K | 1 | |
| 31 Aug 2023 | £460K | £267K | £427K | 2 | |
| 31 Aug 2022 | £457K | £297K | £451K | 2 | |
| 31 Aug 2021 | £443K | £358K | £481K | 1 | |
| 31 Aug 2020 | £369K | £271K | £466K | 1 | |
| 31 Aug 2019 | £311K | £201K | £166K | 1 | |
| 31 Aug 2018 | £276K | £366K | £112K | ||
| 31 Aug 2017 | £248K | £313K | £68K | ||
| 31 Aug 2016 | £321K | £27K | £382K | £113K | |
| 31 Aug 2015 | £264K | £96K | £244K | £35K |
Where NJP Plumbing Limited is registered
The registered office is in Wimbledon (SW19), in the Merton local authority area, London. Show SW19 4TW on a map.
Other trade companies in SW19
- Firstfixlondon Ltd.Builders
- Rainbow One Construction UK LtdSpecialist contractors
- Base Bloc LimitedBuilders
- Concealed Climate LimitedPlumbers and heating engineers
- Morningside LtdProperty developers
- Cupi-Building LtdBuilders
- Crown Infra London LtdBuilders
- Aj & Co One LtdProperty developers
What happens if NJP Plumbing Limited 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 06418430
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 November 2007 (18 years ago)
- Registered office
- 26 Chester Road, Wimbledon, London, SW19 4TW
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 6 October 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 Wimbledon
Other active plumbing and heating companies registered in Wimbledon.
- P.S.Baker Limited2001
- R.W.Miller Plumbing & Heating Ltd2023
- The London Fireplaces Ltd2016
- The London Flue Lining Company Limited2016
- Wimbledon Heating Ltd2015
- Wizfix Heating Ltd2015
- Chris Letts Plumbing and Heating Limited2023
- D.T Francis Heating Services Ltd2011
All plumbing and heating companies in Wimbledon · All trades in Wimbledon · Plumbers and heating engineers across the UK
Frequently asked questions
When are NJP Plumbing Limited's accounts due?
NJP Plumbing Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is NJP Plumbing Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is NJP Plumbing Limited still trading?
NJP Plumbing Limited 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 NJP Plumbing Limited do?
NJP Plumbing Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is NJP Plumbing Limited?
NJP Plumbing Limited was incorporated on 5 November 2007, 18 years ago.
What is the penalty if NJP Plumbing Limited 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 NJP Plumbing Limited 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.