- Companies
- Civil engineering
- Cwmbran
- Thorteck Ltd
Thorteck Ltd
- Company number
- 05854257
- Incorporated
- 22 Jun 200620 years trading
- Registered office
- Pembroke House Ty Coch Lane, Llantarnam Park Way, Cwmbran, NP44 3AU
- Nature of business
- Construction of other civil engineering projects n.e.c.
Thorteck Ltd is a 20-year-old private limited company registered in Cwmbran, company number 05854257, one of 16 civil engineering contractors in Cwmbran. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £7,636 (+7.2%) on the year before, to £113K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £139K against £45K owed within a year: 3.1 times cover.
- 2 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 31 Oct 2025 | £113K | £65K | £139K | £45K | 2 |
| 31 Oct 2024 | £106K | £140K | £142K | £61K | 2 |
| 31 Oct 2023 | £67K | £142K | £196K | £108K | 3 |
| 31 Oct 2022 | -£2,726 | £67K | £122K | £85K | 2 |
| 31 Oct 2021 | -£96K | £7,477 | £32K | £83K | 3 |
| 31 Oct 2020 | -£102K | £40K | £52K | £108K | 3 |
| 30 Apr 2019 | -£33K | £5 | £18K | £92K | 3 |
| 30 Jun 2018 | £21K | £12K | £71K | £78K | 3 |
| 30 Jun 2017 | £1,296 | £1,451 | £61K | £81K | 4 |
| 30 Jun 2016 | £23K | £1 | £71K | £59K |
Where Thorteck Ltd is registered
The registered office is in Cwmbran (NP44), in the Torfaen local authority area, Wales. Show NP44 3AU on a map.
Other trade companies in NP44
- Compliant Fire Safety Solutions LtdInstallers
- V&K Solutions LimitedCivil engineering
- Pure Clean by Nichola LtdCleaning companies
- Amsof LimitedPlumbers and heating engineers
- Marchant Home Solutions Ltd LtdBuilders
- True Level Concrete LtdBuilders
- A2Z Tech LimitedMachinery repair and installation
- Days Ventilation Solutions LtdPlumbers and heating engineers
Also registered at this address
2 other companies use the same registered office as Thorteck Ltd.
- J.S Electrics (Jse) LtdElectricians
- Peter Villars Sportsground Maintenance LimitedLandscapers and gardeners
What happens if Thorteck 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 05854257
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 June 2006 (20 years ago)
- Registered office
- Pembroke House Ty Coch Lane, Llantarnam Park Way, Cwmbran, NP44 3AU
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 22 June 2026
- Charges (mortgages)
- 3 outstanding of 5 registered
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Cwmbran
Other active civil engineering contractors registered in Cwmbran.
- TSL Heating & Plumbing Limited1998
- V&K Solutions Limited2026
- Vulcan Contractors Ltd2018
- Beaufort Property Development Limited2001
- C. G. Vimpany Limited2006
- D.S Utilities Ltd2026
- Darren Burnett Construction Limited2025
- Etheridge Plant Hire Limited1994
All civil engineering contractors in Cwmbran · All trades in Cwmbran · Civil engineering across the UK
Frequently asked questions
When are Thorteck Ltd's accounts due?
Thorteck Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Thorteck Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Thorteck Ltd still trading?
Thorteck 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 Thorteck Ltd do?
Thorteck Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Thorteck Ltd?
Thorteck Ltd was incorporated on 22 June 2006, 20 years ago.
What is the penalty if Thorteck 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 Thorteck 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.