- Companies
- Plumbers and heating engineers
- Southport
- Jjmechanical Services Ltd
Jjmechanical Services Ltd
- Company number
- 14964337
- Incorporated
- 27 Jun 20233 years trading
- Registered office
- 8 the Avenue, Southport, Lancashire, PR9 8AZ
- Nature of business
- Plumbing, heat and air-conditioning installation
Jjmechanical Services Ltd is a 3-year-old private limited company registered in Southport, company number 14964337, one of 42 plumbing and heating companies in Southport. 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 £1,838 (+14.6%) on the year before, to £14K.
- Current assets of £23K against £14K owed within a year: 1.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £14K | £527 | £23K | £14K | 1 |
| 31 Mar 2024 | £13K | £239 | £13K | £6,883 | 1 |
Where Jjmechanical Services Ltd is registered
The registered office is in Southport (PR9), in the West Lancashire local authority area, North West. Show PR9 8AZ on a map.
Other trade companies in PR9
- Cortex Fire and Security LtdMachinery repair and installation
- Desmo Engineering & Motorcycle Services LtdMotor traders
- Bird Building & Construction LtdBuilders
- Hit Happens Arc LimitedMechanics and garages
- Nja Construction Services LtdProperty developers
- Silverline Renovations LtdPlasterers
- Nestra Living LtdFinishing trades
- Churchtown Tree Surgery LimitedLandscapers and gardeners
What happens if Jjmechanical Services 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
- 14964337
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 June 2023 (3 years ago)
- Registered office
- 8 the Avenue, Southport, Lancashire, PR9 8AZ
- 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
- 26 June 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 Southport
Other active plumbing and heating companies registered in Southport.
- JLC Heating and Plumbing Specialists Limited2023
- Just Boilers & Plumbing Ltd2019
- K Davies Plumbers Ltd2025
- K28 Heating and Boiler Solutions Ltd2026
- KGN HVAC Ltd2023
- Locate Heating and Plumbing Ltd2021
- Lyndale Heating Limited2008
- Mark Knowles Limited2011
All plumbing and heating companies in Southport · All trades in Southport · Plumbers and heating engineers across the UK
Frequently asked questions
When are Jjmechanical Services Ltd's accounts due?
Jjmechanical Services 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 Jjmechanical Services 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 Jjmechanical Services Ltd still trading?
Jjmechanical Services 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 Jjmechanical Services Ltd do?
Jjmechanical Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Jjmechanical Services Ltd?
Jjmechanical Services Ltd was incorporated on 27 June 2023, 3 years ago.
What is the penalty if Jjmechanical Services 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 Jjmechanical Services 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.