- Companies
- Groundworks and demolition
- Blackwood
- Ag James & Son (Plant Hire) Limited
Ag James & Son (Plant Hire) Limited
- Company number
- 06578975
- Incorporated
- 29 Apr 200818 years trading
- Registered office
- Tyn Llwyn Farm Ton-Y-Moch Lane, Mynyddislwyn, Blackwood, NP12 2DT
- Nature of business
- Site preparation
Ag James & Son (Plant Hire) Limited is a 18-year-old private limited company registered in Blackwood, company number 06578975, one of 6 groundworks and demolition companies in Blackwood. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £11K (+11.8%) on the year before, to £106K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £161K against £141K owed within a year: 1.1 times cover.
- 8 employees on average, down from 9 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £106K | £56K | £161K | £141K | 8 |
| 30 Apr 2024 | £95K | £73K | £164K | £153K | 9 |
| 30 Apr 2023 | £43K | £29K | £134K | £167K | 9 |
| 30 Apr 2022 | £46K | £16K | £93K | £146K | 6 |
| 30 Apr 2021 | £45K | £36K | £112K | £164K | 7 |
| 30 Apr 2020 | £48K | £47K | £97K | £200K | 6 |
| 30 Apr 2019 | £63K | £48K | £98K | £143K | |
| 30 Apr 2018 | £38K | £32K | £67K | £134K | |
| 30 Apr 2017 | £20K | £30K | £71K | £131K | 6 |
| 30 Apr 2016 | £11K | £27K | £72K | £129K |
Public contracts won
Ag James & Son (Plant Hire) Limited has one public sector contract award on record (2022). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Caerphilly County Borough Council | Purchase & Hire of Operated & Non Operated Plant and Equipment | Ceiling, not shown | 14 Apr 2022 |
Where Ag James & Son (Plant Hire) Limited is registered
The registered office is in Blackwood (NP12), in the Caerphilly local authority area, Wales. Show NP12 2DT on a map.
Other trade companies in NP12
- Hohm Property Group LtdProperty developers
- R&C Mechanics LimitedMechanics and garages
- M & R Property Solutions (SW) LimitedFinishing trades
- JLH Scaffolding LtdScaffolders
- SM Contracting SW LtdBuilders
- Top Notch Carpentry Services LimitedInstallers
- Cardiff Bathrooms LtdFinishing trades
- CB Brickwork & Building LtdSpecialist contractors
What happens if Ag James & Son (Plant Hire) 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 06578975
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 April 2008 (18 years ago)
- Registered office
- Tyn Llwyn Farm Ton-Y-Moch Lane, Mynyddislwyn, Blackwood, NP12 2DT
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 28 April 2026
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Blackwood
Other active groundworks and demolition companies registered in Blackwood.
- D&M Plant Hire & Utilities Limited2020
- Darren Lewis Transport Limited2013
- Itg Groundworks Ltd2026
- RDJ Demolition Ltd2026
- RDJ Groundworks Limited2021
All groundworks and demolition companies in Blackwood · All trades in Blackwood · Groundworks and demolition across the UK
Frequently asked questions
When are Ag James & Son (Plant Hire) Limited's accounts due?
Ag James & Son (Plant Hire) Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Ag James & Son (Plant Hire) Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Ag James & Son (Plant Hire) Limited still trading?
Ag James & Son (Plant Hire) 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 Ag James & Son (Plant Hire) Limited do?
Ag James & Son (Plant Hire) Limited is registered under Site preparation (SIC 43120).
How old is Ag James & Son (Plant Hire) Limited?
Ag James & Son (Plant Hire) Limited was incorporated on 29 April 2008, 18 years ago.
Has Ag James & Son (Plant Hire) Limited won public sector contracts?
Yes. Ag James & Son (Plant Hire) Limited has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Caerphilly County Borough Council.
What is the penalty if Ag James & Son (Plant Hire) 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 Ag James & Son (Plant Hire) 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.