- Companies
- Civil engineering
- Barnsley
- Critical Power CX Services Ltd
Critical Power CX Services Ltd
- Company number
- 15858543
- Incorporated
- 25 Jul 20242 years trading
- Registered office
- 161 Weetshaw Lane, Cudworth, Barnsley, South Yorkshire, S72 8BL
- Nature of business
- Construction of utility projects for electricity and telecommunications; Other engineering activities
Critical Power CX Services Ltd is a 2-year-old private limited company registered in Barnsley, company number 15858543, one of 89 civil engineering contractors in Barnsley. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 July 2025, as filed at Companies House.
Where Critical Power CX Services Ltd is registered
The registered office is in Barnsley (S72), in the Barnsley local authority area, Yorkshire and The Humber. Show S72 8BL on a map.
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What happens if Critical Power CX Services 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 15858543
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 July 2024 (2 years ago)
- Registered office
- 161 Weetshaw Lane, Cudworth, Barnsley, South Yorkshire, S72 8BL
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
Other engineering activities (SIC 71129) - Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 24 July 2026
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 Barnsley
Other active civil engineering contractors registered in Barnsley.
- CT Utilities (Yorkshire) Ltd2022
- CTC Aggregates Ltd2020
- D Lazenby Building Services Limited2021
- DDW Utility Provider Ltd2026
- Diablo Groundworks & Civils Ltd2021
- DMR Construction and Groundwork Services Limited2017
- Elite Mark Group Ltd2024
- Elm Quantity Surveying Services Limited2005
All civil engineering contractors in Barnsley · All trades in Barnsley · Civil engineering across the UK
Frequently asked questions
When are Critical Power CX Services Ltd's accounts due?
Critical Power CX Services Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Critical Power CX Services Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Critical Power CX Services Ltd still trading?
Critical Power CX Services 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 Critical Power CX Services Ltd do?
Critical Power CX Services Ltd is registered under Construction of utility projects for electricity and telecommunications (SIC 42220); Other engineering activities (SIC 71129).
How old is Critical Power CX Services Ltd?
Critical Power CX Services Ltd was incorporated on 25 July 2024, 2 years ago.
What is the penalty if Critical Power CX Services 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 Critical Power CX Services 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.