- Companies
- Plumbers and heating engineers
- London
- NJP Mechanical Limited
NJP Mechanical Limited
- Company number
- 16386894
- Incorporated
- 14 Apr 20251 year trading
- Registered office
- 13 Bayeux Court, Halford Place, London, W7 3DH
- Nature of business
- Plumbing, heat and air-conditioning installation
NJP Mechanical Limited is a 1-year-old private limited company registered in London, company number 16386894, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 14 January 2027, and its first CT600 is due at HMRC on 13 April 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.
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Where NJP Mechanical Limited is registered
The registered office is in London (W7), in the Ealing local authority area, London. Show W7 3DH on a map.
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Also registered at this address
1 other company uses the same registered office as NJP Mechanical Limited.
- Foxco Building Consultancy LimitedProperty developers
What happens if NJP Mechanical 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 14 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 Jan 2027 to 14 Feb 2027 | £150 |
| 1 to 3 months late | 15 Feb 2027 to 14 Apr 2027 | £375 |
| 3 to 6 months late | 15 Apr 2027 to 14 Jul 2027 | £750 |
| More than 6 months late | From 15 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 16386894
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 April 2025 (1 year ago)
- Registered office
- 13 Bayeux Court, Halford Place, London, W7 3DH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 13 April 2026
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.
- NJS Renovations Ltd2021
- NKN Building & Plumbing Services Ltd2019
- NKP MNT Ltd Ltd2025
- Nkplumbingrep Limited2025
- NMHP Limited2026
- NMK Central Heating and Boiler Services Ltd2020
- No More Leaks Ltd2025
- No Pressure Heating Solutions Limited2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are NJP Mechanical Limited's accounts due?
NJP Mechanical Limited's next accounts are due at Companies House by 14 January 2027 (in 93 days), covering the period to 30 April 2026.
When is NJP Mechanical Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 13 April 2026, due by 13 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is NJP Mechanical Limited still trading?
NJP Mechanical 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 Mechanical Limited do?
NJP Mechanical Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is NJP Mechanical Limited?
NJP Mechanical Limited was incorporated on 14 April 2025, 1 year ago.
What is the penalty if NJP Mechanical 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 Mechanical 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.