TJN Air Ltd
- Company number
- 13889907
- Incorporated
- 2 Feb 20224 years trading
- Registered office
- 116 Capel Newydd Avenue, Blaenavon, Pontypool, NP4 9LG
- Nature of business
- Plumbing, heat and air-conditioning installation
TJN Air Ltd is a 4-year-old private limited company registered in Pontypool, company number 13889907, one of 40 plumbing and heating companies in Pontypool. 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 down £2,924 (-58.3%) on the year before, to £2,095.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £19K against £34K owed within a year: 0.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £2,095 | £19K | £34K | 1 | |
| 28 Feb 2025 | £5,019 | £33K | £46K | 1 | |
| 28 Feb 2024 | £8,954 | £0 | £26K | £11K | 1 |
| 28 Feb 2023 | £2,489 | £1,194 | £9,386 | £16K | 1 |
Who runs and owns TJN Air Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| T*** N*** | Director | Feb 2022 |
Person with significant control
Where TJN Air Ltd is registered
The registered office is in Pontypool (NP4), in the Torfaen local authority area, Wales. Show NP4 9LG on a map.
Other trade companies in NP4
- BL Home Solutions LtdRoofers
- Airmech Solutions LtdPlumbers and heating engineers
- Redmont Roofing LtdRoofers
- Otto Property Developments LtdProperty developers
- Nurture Real Estate LtdProperty developers
- Blackstone Mechanical LtdPlumbers and heating engineers
- Keltic Property Services LtdFinishing trades
- Dassh LtdProperty developers
What happens if TJN Air 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
- 13889907
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 February 2022 (4 years ago)
- Registered office
- 116 Capel Newydd Avenue, Blaenavon, Pontypool, NP4 9LG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 1 February 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 Pontypool
Other active plumbing and heating companies registered in Pontypool.
- Tofgas Ltd2025
- Total Vent Systems Limited2026
- Trusthobbs Limited2013
- Ty Gwyn Gas Services Ltd2019
- Watkins and Walker Limited2009
- WW Biomass Services Ltd2019
- WW Contracting Ltd2018
- WW Fire Sprinklers Ltd2024
All plumbing and heating companies in Pontypool · All trades in Pontypool · Plumbers and heating engineers across the UK
Frequently asked questions
When are TJN Air Ltd's accounts due?
TJN Air Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is TJN Air 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 TJN Air Ltd still trading?
TJN Air 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 TJN Air Ltd do?
TJN Air Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is TJN Air Ltd?
TJN Air Ltd was incorporated on 2 February 2022, 4 years ago.
Who runs TJN Air Ltd?
TJN Air Ltd has 1 active director, the longest-serving appointed in Feb 2022. Their names and service addresses are on the Companies House register.
Who owns TJN Air Ltd?
One person or company has significant control of TJN Air Ltd: an individual (owns 75% or more of the shares).
What is the penalty if TJN Air 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 TJN Air 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.