- Companies
- Plumbers and heating engineers
- London
- JP Mechanical Limited
JP Mechanical Limited
- Company number
- 15268161
- Incorporated
- 7 Nov 20232 years trading
- Registered office
- Suit 5, 1ST Floor, 141-143 King Street, London, W6 9JG
- Nature of business
- Plumbing, heat and air-conditioning installation
JP Mechanical Limited is a 2-year-old private limited company registered in London, company number 15268161, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £5,180 (+4.4%) on the year before, to £124K.
- Current assets of £186K against £80K owed within a year: 2.3 times cover.
- 3 employees on average, up from 2 the year before.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £124K | £186K | £80K | 3 | |
| 30 Jun 2024 | £119K | £135K | 2 |
Where JP Mechanical Limited is registered
The registered office is in London (W6), in the Hammersmith and Fulham local authority area, London. Show W6 9JG on a map.
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- Starline Motors LimitedMotor traders
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- PHJ Construction LtdBuilders
- Tribesell Motors LimitedMotor traders
What happens if JP 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 15268161
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 November 2023 (2 years ago)
- Registered office
- Suit 5, 1ST Floor, 141-143 King Street, London, W6 9JG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 29 January 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.
- JP Plumbing and Heating Ltd2017
- Jpam Plumbing Solution Ltd2026
- JPL Facilities Limited2024
- JRS Renewables Ltd2024
- JS Gas, Heating & Plumbing Ltd2020
- JSB Bathrooms Ltd2020
- JSB Boilers Ltd2020
- JSP Gas Limited2017
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are JP Mechanical Limited's accounts due?
JP Mechanical Limited's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is JP Mechanical Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is JP Mechanical Limited still trading?
JP 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 JP Mechanical Limited do?
JP Mechanical Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is JP Mechanical Limited?
JP Mechanical Limited was incorporated on 7 November 2023, 2 years ago.
What is the penalty if JP 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 JP 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.