- Companies
- Plumbers and heating engineers
- Warrington
- JSC Mechanical Ltd
JSC Mechanical Ltd
- Company number
- 15530843
- Incorporated
- 28 Feb 20242 years trading
- Registered office
- Trimble House, 9 Bold Street, Warrington, WA1 1DN
- Nature of business
- Plumbing, heat and air-conditioning installation
JSC Mechanical Ltd is a 2-year-old private limited company registered in Warrington, company number 15530843, one of 125 plumbing and heating companies in Warrington. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where JSC Mechanical Ltd is registered
The registered office is in Warrington (WA1), in the Warrington local authority area, North West. Show WA1 1DN on a map.
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Also registered at this address
23 other companies use the same registered office as JSC Mechanical Ltd.
- Agr Electrical (North West) LimitedElectricians
- Alchlor LimitedCleaning companies
- Aries Cleans LimitedCleaning companies
- Astraea Online LimitedRepair services
- Ati Insulation Contractors LimitedSpecialist contractors
- CBM Building LimitedFinishing trades
- D Howl Construction LimitedBuilders
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- Electriko Heritage LimitedElectricians
- Electriko Iiot LimitedElectricians
- Freeway Automarque LimitedMotor traders
- Gto Joinery LimitedJoiners and carpenters
- Hausheat LtdPlumbers and heating engineers
- Itech Prestige LimitedMachinery repair and installation
- J&P Projects LimitedSpecialist contractors
- KCH Auto Repairs LimitedMechanics and garages
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What happens if JSC 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 15530843
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 February 2024 (2 years ago)
- Registered office
- Trimble House, 9 Bold Street, Warrington, WA1 1DN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 7 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 Warrington
Other active plumbing and heating companies registered in Warrington.
- Kasb Services Ltd2023
- KC Mechanical Ltd2024
- KR Ventilation Limited2024
- L S R Refrigeration & Air Conditioning Limited2004
- L&W Heating, Plumbing & Air Conditioning Limited2002
- LGL Mep Services Ltd2020
- M.J.M. Plumbing & Heating Limited1997
- Marco Heating & Plumbing Services Limited2025
All plumbing and heating companies in Warrington · All trades in Warrington · Plumbers and heating engineers across the UK
Frequently asked questions
When are JSC Mechanical Ltd's accounts due?
JSC Mechanical Ltd's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is JSC Mechanical Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is JSC Mechanical Ltd still trading?
JSC 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 JSC Mechanical Ltd do?
JSC Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is JSC Mechanical Ltd?
JSC Mechanical Ltd was incorporated on 28 February 2024, 2 years ago.
What is the penalty if JSC 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 JSC 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.