- Companies
- Plumbers and heating engineers
- Merthyr Tydfil
- Karl Jones Plumbing & Heating Services Limited
Karl Jones Plumbing & Heating Services Limited
- Company number
- 05014763
- Incorporated
- 14 Jan 200422 years trading
- Registered office
- 2 Blanche Street, Dowlais, Merthyr Tydfil, Mid Glamorgan, CF48 3PE
- Nature of business
- Plumbing, heat and air-conditioning installation
Karl Jones Plumbing & Heating Services Limited is a 22-year-old private limited company registered in Merthyr Tydfil, company number 05014763, one of 21 plumbing and heating companies in Merthyr Tydfil. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
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 down £12K (-153.5%) on the year before, to -£4,271.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £22K against £42K owed within a year: 0.5 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2026 | -£4,271 | £22K | £42K | 2 | |
| 28 Feb 2025 | £7,986 | £31K | £41K | 2 | |
| 29 Feb 2024 | £2,379 | £33K | £37K | 2 | |
| 28 Feb 2023 | -£4,695 | £32K | £43K | 2 | |
| 28 Feb 2022 | £7,349 | £42K | £42K | 1 | |
| 28 Feb 2021 | £20K | £46K | £36K | 2 | |
| 28 Feb 2020 | £2,513 | £28K | £28K | 2 | |
| 28 Feb 2019 | -£415 | £18K | £23K | ||
| 28 Feb 2018 | £14K | £37K | £28K | ||
| 28 Feb 2017 | -£45 | £17K | £22K |
Where Karl Jones Plumbing & Heating Services Limited is registered
The registered office is in Merthyr Tydfil (CF48), in the Merthyr Tydfil local authority area, Wales. Show CF48 3PE on a map.
Other trade companies in CF48
- Valley Roofing Building & Carpentry LimitedRoofers
- Ajl Rail/Civil Engineering LtdCivil engineering
- M&K Valeting LtdCleaning companies
- Mdgroundworks LtdGroundworks and demolition
- Craig Lloyd Groundworks LtdCivil engineering
- Noarc Electrical LtdElectricians
- Elt Brickwork LimitedBuilders
- JBH Decorating LimitedPainters and decorators
What happens if Karl Jones Plumbing & Heating Services Limited 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 05014763
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 January 2004 (22 years ago)
- Registered office
- 2 Blanche Street, Dowlais, Merthyr Tydfil, Mid Glamorgan, CF48 3PE
- 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 2026
- Last confirmation statement
- 14 October 2025
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 Merthyr Tydfil
Other active plumbing and heating companies registered in Merthyr Tydfil.
- L Murphy Plumbing & Gas Services Ltd2024
- M&T Heating and Plumbing Ltd2025
- Park Heating & Gas Services Limited2018
- SSW Ltd2017
- Will Thomas Plumbing & Heating Ltd2022
- Anew Energy Limited2026
- Callum James Heating Ltd2023
- CDS Heating Services Ltd2025
All plumbing and heating companies in Merthyr Tydfil · All trades in Merthyr Tydfil · Plumbers and heating engineers across the UK
Frequently asked questions
When are Karl Jones Plumbing & Heating Services Limited's accounts due?
Karl Jones Plumbing & Heating Services Limited's next accounts are due at Companies House by 30 November 2027 (in 413 days), covering the period to 28 February 2027.
When is Karl Jones Plumbing & Heating Services Limited's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is Karl Jones Plumbing & Heating Services Limited still trading?
Karl Jones Plumbing & Heating Services Limited 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 Karl Jones Plumbing & Heating Services Limited do?
Karl Jones Plumbing & Heating Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Karl Jones Plumbing & Heating Services Limited?
Karl Jones Plumbing & Heating Services Limited was incorporated on 14 January 2004, 22 years ago.
What is the penalty if Karl Jones Plumbing & Heating Services Limited 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 Karl Jones Plumbing & Heating Services Limited 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.