- Companies
- Plumbers and heating engineers
- London
- Yjm Mechanical Ltd
Yjm Mechanical Ltd
- Company number
- 09113454
- Incorporated
- 2 Jul 201412 years trading
- Registered office
- 3B Maidstone Road, London, N11 2TR
- Nature of business
- Plumbing, heat and air-conditioning installation
Yjm Mechanical Ltd is a 12-year-old private limited company registered in London, company number 09113454, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £6,360 (+142.6%) on the year before, to £1,901.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £9,447 against £6,946 owed within a year: 1.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £1,901 | £9,447 | £6,946 | 1 | |
| 31 Jul 2024 | -£4,459 | £3,569 | £7,428 | 1 | |
| 31 Jul 2023 | -£3,790 | £8,069 | 1 | ||
| 31 Jul 2022 | -£8,812 | £3,030 | £12K | 1 | |
| 31 Jul 2021 | -£11K | £4,072 | £15K | 1 | |
| 31 Jul 2020 | -£12K | £4 | £13K | 1 | |
| 31 Jul 2019 | -£1 | -£8,145 | £8,984 | ||
| 31 Jul 2018 | £1,254 | -£4,261 | £6,635 | ||
| 31 Jul 2017 | £2,770 | £3 | £6,418 | £3,648 | |
| 31 Jul 2016 | £20K | £9,902 | £27K | £6,751 |
Who runs and owns Yjm Mechanical Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| J*** M*** | Director | Jul 2014 |
Person with significant control
Where Yjm Mechanical Ltd is registered
The registered office is in London (N11), in the Haringey local authority area, London. Show N11 2TR on a map.
Other trade companies in N11
- Buildworks London LimitedBuilders
- KRS Autos LtdMechanics and garages
- DPH Decorators LtdPainters and decorators
- GLC Rigging LtdScaffolders
- Gorgeous Gutters LimitedCleaning companies
- Hemmel MOT & Service Centre LimitedMechanics and garages
- Purespace Property Services LtdCleaning companies
- DG Build LtdBuilders
What happens if Yjm Mechanical 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 09113454
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 July 2014 (12 years ago)
- Registered office
- 3B Maidstone Road, London, N11 2TR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 11 July 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.
- Ym Plumbing & Leak Detections Ltd2021
- Youngs Plumbing Ltd2008
- Your Local Heating Company Ltd2025
- Your Property Solutions 24 Ltd2025
- Your Sub Broker Limited2025
- Your World Contractors Ltd2025
- Your World Solutions Ltd2024
- Yr Plumbing Ltd2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Yjm Mechanical Ltd's accounts due?
Yjm Mechanical Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Yjm Mechanical Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Yjm Mechanical Ltd still trading?
Yjm Mechanical 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 Yjm Mechanical Ltd do?
Yjm Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Yjm Mechanical Ltd?
Yjm Mechanical Ltd was incorporated on 2 July 2014, 12 years ago.
Who runs Yjm Mechanical Ltd?
Yjm Mechanical Ltd has 1 active director, the longest-serving appointed in Jul 2014. Their names and service addresses are on the Companies House register.
Who owns Yjm Mechanical Ltd?
One person or company has significant control of Yjm Mechanical Ltd: an individual (has significant influence or control).
What is the penalty if Yjm Mechanical 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 Yjm Mechanical 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.