- Companies
- Specialist contractors
- Cardiff
- Ajc Contractors Ltd
Ajc Contractors Ltd
- Company number
- 11350511
- Incorporated
- 8 May 20188 years trading
- Registered office
- 6 Foxberry Close,, Pontprennau, Cardiff, Glamorgan, CF23 8NR
- Nature of business
- Other specialised construction activities n.e.c.
Ajc Contractors Ltd is a 8-year-old private limited company registered in Cardiff, company number 11350511, one of 173 specialist construction companies in Cardiff. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £137 (-77%) on the year before, to £41.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £9,536 against £9,495 owed within a year: 1.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £41 | £134 | £9,536 | £9,495 | 1 |
| 31 May 2024 | £178 | £23 | £6,499 | £6,321 | 1 |
| 31 May 2023 | £10K | £12K | £19K | £8,332 | 1 |
| 31 May 2022 | £19K | £23K | £2,654 | 1 | |
| 31 May 2021 | £17K | £24K | £5,962 | 1 | |
| 31 May 2020 | £6,045 | £15K | £7,737 | 1 | |
| 31 May 2019 | -£581 | -£7,489 | £6,099 |
Where Ajc Contractors Ltd is registered
The registered office is in Cardiff (CF23), in the Cardiff local authority area, Wales. Show CF23 8NR on a map.
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- Lex Roofing Solutions LtdRoofers
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What happens if Ajc Contractors 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11350511
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 May 2018 (8 years ago)
- Registered office
- 6 Foxberry Close,, Pontprennau, Cardiff, Glamorgan, CF23 8NR
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 25 August 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Cardiff
Other active specialist construction companies registered in Cardiff.
- Aldrebe Constructions Limited2021
- Alma Consultancy Limited2025
- Altos Masonry Limited2011
- Amor Galvanizing Services Limited2021
- Anchor Testing Specialists Ltd2021
- Asguard Limited2005
- Atamate Solutions Ltd2011
- Atlantic Pacific Marine Limited2010
All specialist construction companies in Cardiff · All trades in Cardiff · Specialist contractors across the UK
Frequently asked questions
When are Ajc Contractors Ltd's accounts due?
Ajc Contractors Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Ajc Contractors Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Ajc Contractors Ltd still trading?
Ajc Contractors Ltd is listed as active on the Companies House register (checked 12 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 Ajc Contractors Ltd do?
Ajc Contractors Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Ajc Contractors Ltd?
Ajc Contractors Ltd was incorporated on 8 May 2018, 8 years ago.
What is the penalty if Ajc Contractors 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 Ajc Contractors Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.