- Companies
- Plumbers and heating engineers
- Newport
- CJM Plumbing Services Limited
CJM Plumbing Services Limited
- Company number
- 05286493
- Incorporated
- 15 Nov 200421 years trading
- Registered office
- 20 Pencarn Avenue, Coedkernew, Newport, Gwent, NP10 8TJ
- Nature of business
- Plumbing, heat and air-conditioning installation
CJM Plumbing Services Limited is a 21-year-old private limited company registered in Newport, company number 05286493, one of 108 plumbing and heating companies in Newport. 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 £75K on the year before, to £69K.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £89K against £47K owed within a year: 1.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2019 to 2022.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2022 | £69K | £84K | £89K | £47K | 1 |
| 31 Mar 2021 | -£6,238 | £10K | £10K | £42K | 1 |
| 31 Mar 2020 | £771 | £7,259 | £8,349 | £41K | 1 |
| 31 Mar 2019 | £29K | £25K | £35K | £50K | 1 |
Where CJM Plumbing Services Limited is registered
The registered office is in Newport (NP10), in the Newport local authority area, Wales. Show NP10 8TJ on a map.
Other trade companies in NP10
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- Williams Engineering Enterprises LtdMechanics and garages
- Kemble Aviation LtdMachinery repair and installation
- All Seasons Accident Repair Centre Arc LimitedMechanics and garages
- Kishasmobilephonefixers LtdMachinery repair and installation
- Rogerstonehandcarwash LtdCleaning companies
- Elite Climate Group LimitedPlumbers and heating engineers
- R&R Technical Services LtdElectricians
What happens if CJM Plumbing 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 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
- 05286493
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 November 2004 (21 years ago)
- Registered office
- 20 Pencarn Avenue, Coedkernew, Newport, Gwent, NP10 8TJ
- 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
- 2 November 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 Newport
Other active plumbing and heating companies registered in Newport.
- Classic Fires & Bathrooms Limited2002
- CLS Ventilation Ltd2026
- Colclough Plumbing and Heating Limited2018
- Country Boiler Services Limited1965
- D Squared Maintenance Services Limited2009
- Danlar Limited2018
- Dci Fire Protection Limited2018
- Dragon Heating & Cooling Ltd2026
All plumbing and heating companies in Newport · All trades in Newport · Plumbers and heating engineers across the UK
Frequently asked questions
When are CJM Plumbing Services Limited's accounts due?
CJM Plumbing Services Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is CJM Plumbing Services Limited'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 CJM Plumbing Services Limited still trading?
CJM Plumbing 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 CJM Plumbing Services Limited do?
CJM Plumbing Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is CJM Plumbing Services Limited?
CJM Plumbing Services Limited was incorporated on 15 November 2004, 21 years ago.
What is the penalty if CJM Plumbing 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 CJM Plumbing 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.