- Companies
- Plumbers and heating engineers
- Rotherham
- Trinity Mechanical Ltd
Trinity Mechanical Ltd
- Company number
- 09240500
- Incorporated
- 30 Sep 201412 years trading
- Registered office
- Unit 32 Fusion@Magna, Magna Way, Rotherham, South Yorkshire, S60 1FE
- Nature of business
- Plumbing, heat and air-conditioning installation
Trinity Mechanical Ltd is a 12-year-old private limited company registered in Rotherham, company number 09240500, one of 158 plumbing and heating companies in Rotherham. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £3,812 (+23.4%) on the year before, to £20K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £37K against £4,529 owed within a year: 8.3 times cover.
- 5 employees 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 Dec 2025 | £20K | £37K | £4,529 | 5 | |
| 31 Dec 2024 | £16K | £56K | £42K | 5 | |
| 31 Dec 2023 | £4,272 | £28K | £16K | 2 | |
| 31 Dec 2022 | £7,846 | £40K | £19K | 2 | |
| 31 Dec 2021 | £18K | £56K | £19K | 2 | |
| 31 Dec 2020 | £18K | £59K | £15K | 3 | |
| 31 Dec 2019 | £283 | £7,270 | £8,363 | 3 | |
| 31 Dec 2018 | £1,736 | £8,844 | £8,943 | ||
| 31 Dec 2017 | £5,981 | £18K | £14K | ||
| 31 Dec 2016 | £5,751 | £20K | £18K |
Where Trinity Mechanical Ltd is registered
The registered office is in Rotherham (S60), in the Rotherham local authority area, Yorkshire and The Humber. Show S60 1FE on a map.
Other trade companies in S60
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- Forgepoint Fire and Security LtdElectricians
- Mafmaint LtdSpecialist contractors
- Yorkshire Commercial Valeting LtdCleaning companies
- Down and Out Motorcycles 2026 LtdMotor traders
- Shemeld Properties LtdProperty developers
- Fusion Electrical Yorkshire LimitedElectricians
- Cleancold Environment LimitedInstallers
What happens if Trinity 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 09240500
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 September 2014 (12 years ago)
- Registered office
- Unit 32 Fusion@Magna, Magna Way, Rotherham, South Yorkshire, S60 1FE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 30 September 2025
- Previous names
- Openshaw Gas, Heating & Plumbing Ltd (until 11 Dec 2023)
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 Rotherham
Other active plumbing and heating companies registered in Rotherham.
- Urban Mechanical Contractors Ltd2018
- Ventura Chapman Multi Services Limited2013
- Will Burkin Gas & Plumbing Services Ltd2015
- A Proper Job Ltd2022
- A.J. Beaumont Limited2016
- Aag Plumbing & Heating Ltd2013
- Abbo Gas Services Limited2018
- Across Solutions Ltd2022
All plumbing and heating companies in Rotherham · All trades in Rotherham · Plumbers and heating engineers across the UK
Frequently asked questions
When are Trinity Mechanical Ltd's accounts due?
Trinity Mechanical Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Trinity Mechanical Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Trinity Mechanical Ltd still trading?
Trinity 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 Trinity Mechanical Ltd do?
Trinity Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Trinity Mechanical Ltd?
Trinity Mechanical Ltd was incorporated on 30 September 2014, 12 years ago.
What is the penalty if Trinity 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 Trinity 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.