- Company number
- 12809238
- Incorporated
- 12 Aug 20206 years trading
- Registered office
- 17 Wildcherry Gardens, St Helens, WA9 5UF
- Nature of business
- Construction of domestic buildings
Corplex Construction Ltd Ltd is a 6-year-old private limited company registered in St Helens, company number 12809238, one of 75 building contractors in St Helens. Its next accounts are due at Companies House on 28 May 2027, and the CT600 for the period to 28 August 2026 is due at HMRC on 28 August 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 £1,200 (+2.8%) on the year before, to £45K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £87K against £44K owed within a year: 2.0 times cover.
- 3 employees on average, down from 4 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £45K | £6,304 | £87K | £44K | 3 |
| 31 Aug 2024 | £43K | £24K | £83K | £42K | 4 |
| 31 Aug 2023 | £17K | £7,192 | £102K | £89K | 3 |
| 31 Aug 2022 | £147 | £31K | £146K | £150K | 1 |
| 31 Aug 2021 | £541 | £17K | £132K | £131K | 1 |
Who runs and owns Corplex Construction Ltd Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| G*** B*** | Director | Aug 2020 |
Person with significant control
Where Corplex Construction Ltd Ltd is registered
The registered office is in St Helens (WA9), in the St. Helens local authority area, North West. Show WA9 5UF on a map.
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What happens if Corplex Construction Ltd 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 May 2027 to 28 Jun 2027 | £150 |
| 1 to 3 months late | 29 Jun 2027 to 28 Aug 2027 | £375 |
| 3 to 6 months late | 29 Aug 2027 to 28 Nov 2027 | £750 |
| More than 6 months late | From 29 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Aug 2027 | £200 |
| 3 months late | 28 Nov 2027 | another £200 |
| 6 months late | 28 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Aug 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
- 12809238
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 August 2020 (6 years ago)
- Registered office
- 17 Wildcherry Gardens, St Helens, WA9 5UF
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 28 August (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 11 August 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in St Helens
Other active building contractors registered in St Helens.
- Dany.Ro First Class Limited2024
- Datum Site Engineering Services Limited2016
- DC Steel Construction Ltd2026
- DC UK Contractor Limited2020
- DFSS Ltd2025
- DJ Construction Group Ltd2024
- Duor Solutions Ltd2019
- Elite Construction & Civils Ltd.2019
All building contractors in St Helens · All trades in St Helens · Builders across the UK
Frequently asked questions
When are Corplex Construction Ltd Ltd's accounts due?
Corplex Construction Ltd Ltd's next accounts are due at Companies House by 28 May 2027 (in 227 days), covering the period to 28 August 2026.
When is Corplex Construction Ltd Ltd's CT600 due?
The CT600 for the period to 28 August 2026 is due at HMRC by 28 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 29 May 2027.
Is Corplex Construction Ltd Ltd still trading?
Corplex Construction Ltd 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 Corplex Construction Ltd Ltd do?
Corplex Construction Ltd Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Corplex Construction Ltd Ltd?
Corplex Construction Ltd Ltd was incorporated on 12 August 2020, 6 years ago.
Who runs Corplex Construction Ltd Ltd?
Corplex Construction Ltd Ltd has 1 active director, the longest-serving appointed in Aug 2020. Their names and service addresses are on the Companies House register.
Who owns Corplex Construction Ltd Ltd?
One person or company has significant control of Corplex Construction Ltd Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Corplex Construction Ltd 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 Corplex Construction Ltd 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.