- Companies
- Machinery repair and installation
- Cardiff
- TDJ Group Ltd
TDJ Group Ltd
- Company number
- 13366036
- Incorporated
- 29 Apr 20215 years trading
- Registered office
- 1 Began Road, Old ST. Mellons, Cardiff, CF3 6XJ
- Nature of business
- Repair and maintenance of aircraft and spacecraft; Electrical installation
TDJ Group Ltd is a 5-year-old private limited company registered in Cardiff, company number 13366036, one of 137 machinery repair and installation companies in Cardiff. Companies House shows its accounts as overdue: they were due on 31 January 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for TDJ Group LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £156K on the year before, to £172K.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2022 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2024 | £172K | £165K | £0 | 1 | |
| 30 Apr 2023 | £15K | £16K | £0 | 1 | |
| 30 Apr 2022 | £615 | £0 | £0 | 1 |
Where TDJ Group Ltd is registered
The registered office is in Cardiff (CF3), in the Cardiff local authority area, Wales. Show CF3 6XJ on a map.
Other trade companies in CF3
- Ions Trade & Projects LtdInstallers
- Fly Tech LtdMachinery repair and installation
- Dragonfly Site Services LtdSpecialist contractors
- Arc Energy Systems LtdElectricians
- Floyd’S Consultants LtdProperty developers
- Blues Mechanical LtdInstallers
- Climate Control Cardiff LtdPlumbers and heating engineers
- Campo & Co Developments LtdBuilders
Also registered at this address
1 other company uses the same registered office as TDJ Group Ltd.
- Fly Tech LtdMachinery repair and installation
What happens if TDJ Group Ltd files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2026 to 28 Feb 2026 | £150 |
| 1 to 3 months late | 1 Mar 2026 to 30 Apr 2026 | £375 |
| 3 to 6 months late | 1 May 2026 to 31 Jul 2026 | £750 |
| More than 6 months late | From 1 Aug 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2026 | £200 |
| 3 months late | 30 Jul 2026 | another £200 |
| 6 months late | 30 Oct 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 2027 | 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
- 13366036
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 April 2021 (5 years ago)
- Registered office
- 1 Began Road, Old ST. Mellons, Cardiff, CF3 6XJ
- Nature of business
- Repair and maintenance of aircraft and spacecraft (SIC 33160)
Electrical installation (SIC 43210) - Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2024
- Last confirmation statement
- 29 October 2025
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Cardiff
Other active machinery repair and installation companies registered in Cardiff.
- Teon Electrical Ltd2026
- The Dropbar Limited2020
- The Marine Group Services Ltd2024
- Total Equipment & Machinery Ltd2026
- Travk Ltd2024
- Tronteq Ltd2007
- Ty-Ffynnon Forge Limited2004
- U.K. Marine and Vehicle Services (Cardiff) Limited2007
All machinery repair and installation companies in Cardiff · All trades in Cardiff · Machinery repair and installation across the UK
Frequently asked questions
When are TDJ Group Ltd's accounts due?
TDJ Group Ltd's accounts were due at Companies House on 31 January 2026 and the register shows them as overdue.
When is TDJ Group Ltd's CT600 due?
The CT600 for the period to 30 April 2025 is due at HMRC by 30 April 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2026.
Is TDJ Group Ltd still trading?
TDJ Group Ltd is listed as active on the Companies House register (checked 13 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 TDJ Group Ltd do?
TDJ Group Ltd is registered under Repair and maintenance of aircraft and spacecraft (SIC 33160); Electrical installation (SIC 43210).
How old is TDJ Group Ltd?
TDJ Group Ltd was incorporated on 29 April 2021, 5 years ago.
What is the penalty if TDJ Group 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 TDJ Group Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.