- Companies
- Plumbers and heating engineers
- Leeds
- M F J Mechanical Ltd
M F J Mechanical Ltd
- Company number
- 13354178
- Incorporated
- 23 Apr 20215 years trading
- Registered office
- 92 Halton Moor Avenue, Leeds, LS9 0EX
- Nature of business
- Plumbing, heat and air-conditioning installation
M F J Mechanical Ltd is a 5-year-old private limited company registered in Leeds, company number 13354178, one of 357 plumbing and heating companies in Leeds. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 £27K (+67.7%) on the year before, to £67K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £66K against £22K owed within a year: 3.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £67K | £66K | £22K | 1 | |
| 29 Feb 2024 | £40K | £21K | £8,887 | 1 | |
| 28 Feb 2024 | £40K | £43K | £11K | 1 | |
| 28 Feb 2023 | £33K | £49K | £28K | 1 | |
| 28 Feb 2022 | £100 | £100 | 1 |
Where M F J Mechanical Ltd is registered
The registered office is in Leeds (LS9), in the Leeds local authority area, Yorkshire and The Humber. Show LS9 0EX on a map.
Other trade companies in LS9
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- Demeter Bespoke Homes LtdBuilders
- No Mess LtdCleaning companies
- Florence Tyres LtdMotor traders
- Dale Street Hand Car Wash LtdMotor traders
- Prestige Auto's & Tyres LtdMechanics and garages
- Max Trimmings Grass and Hedge Services LtdLandscapers and gardeners
- Magiic Construction LtdBuilders
Also registered at this address
1 other company uses the same registered office as M F J Mechanical Ltd.
- Drumgray Construction LimitedBuilders
What happens if M F J 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 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 13354178
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 April 2021 (5 years ago)
- Registered office
- 92 Halton Moor Avenue, Leeds, LS9 0EX
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 22 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 Leeds
Other active plumbing and heating companies registered in Leeds.
- M G Plumbing & Maintenance Limited2003
- M.R.V Plumbing and Heating Limited2021
- Makesure Cover Limited2025
- Mark Thompson (Leeds) Limited2001
- MCK Plumbing and Heating Ltd2010
- Methane and Plumbing Ltd2023
- MHJ Yorkshire Ltd2022
- Michael Wainwright Plumbing Ltd2025
All plumbing and heating companies in Leeds · All trades in Leeds · Plumbers and heating engineers across the UK
Frequently asked questions
When are M F J Mechanical Ltd's accounts due?
M F J Mechanical Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is M F J Mechanical Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is M F J Mechanical Ltd still trading?
M F J 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 M F J Mechanical Ltd do?
M F J Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is M F J Mechanical Ltd?
M F J Mechanical Ltd was incorporated on 23 April 2021, 5 years ago.
What is the penalty if M F J 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 M F J 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.