- Companies
- Plumbers and heating engineers
- Manchester
- SJ Mechanical Ltd
SJ Mechanical Ltd
- Company number
- 10600261
- Incorporated
- 3 Feb 20179 years trading
- Registered office
- 78 Market Street, Denton, Manchester, Lancashire, M34 2AQ
- Nature of business
- Plumbing, heat and air-conditioning installation
SJ Mechanical Ltd is a 9-year-old private limited company registered in Manchester, company number 10600261, one of 361 plumbing and heating companies in Manchester. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £868 on the year before, to £860.
- Current assets of £8,933 against £8,073 owed within a year: 1.1 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £860 | £1,130 | £8,933 | £8,073 | 1 |
| 31 Mar 2024 | -£8 | £1,479 | £8,597 | £8,605 | 1 |
| 31 Mar 2023 | -£23 | £1,471 | £8,198 | £8,221 | 1 |
Who runs and owns SJ Mechanical Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| S*** J*** | Director | Feb 2017 |
Person with significant control
Where SJ Mechanical Ltd is registered
The registered office is in Manchester (M34), in the Tameside local authority area, North West. Show M34 2AQ on a map.
Other trade companies in M34
- Nicad Ac LimitedPlumbers and heating engineers
- Whippylicious LtdMotor traders
- Apexcabling LtdSpecialist contractors
- MCR Building Group LtdBuilders
- M60 Auto Parts LtdMotor traders
- Pat's Rendering LtdBuilders
- Gingertache LtdMachinery repair and installation
- Remapiq LtdMechanics and garages
What happens if SJ 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 10600261
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 February 2017 (9 years ago)
- Registered office
- 78 Market Street, Denton, Manchester, Lancashire, M34 2AQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 9 September 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 Manchester
Other active plumbing and heating companies registered in Manchester.
- SND Plumbing Ltd2025
- Solovix Ltd2025
- South Manchester Heating (Chorlton) Limited2014
- Speedy Maintenance Ltd2018
- SR Heating & Plumbing Solutions Limited2024
- Steve Wilson Limited2002
- Stockhold Construction Ltd2026
- Stonehaus Bathrooms Ltd2006
All plumbing and heating companies in Manchester · All trades in Manchester · Plumbers and heating engineers across the UK
Frequently asked questions
When are SJ Mechanical Ltd's accounts due?
SJ Mechanical Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is SJ Mechanical Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is SJ Mechanical Ltd still trading?
SJ Mechanical Ltd is listed as active on the Companies House register (checked 12 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 SJ Mechanical Ltd do?
SJ Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is SJ Mechanical Ltd?
SJ Mechanical Ltd was incorporated on 3 February 2017, 9 years ago.
Who runs SJ Mechanical Ltd?
SJ Mechanical Ltd has 1 active director, the longest-serving appointed in Feb 2017. Their names and service addresses are on the Companies House register.
Who owns SJ Mechanical Ltd?
One person or company has significant control of SJ Mechanical Ltd: an individual (owns 75% or more of the shares).
What is the penalty if SJ 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 SJ Mechanical Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.