- Companies
- Specialist contractors
- Chester le Street
- PHNX Utilities Limited
PHNX Utilities Limited
- Company number
- 16323838
- Incorporated
- 18 Mar 20251 year trading
- Registered office
- 6 Elm Crescent, Kimblesworth, Chester le Street, DH2 3QJ
- Nature of business
- Other specialised construction activities n.e.c.
PHNX Utilities Limited is a 1-year-old private limited company registered in Chester le Street, company number 16323838, one of 18 specialist construction companies in Chester le Street. Its next accounts are due at Companies House on 18 December 2026, and its first CT600 is due at HMRC on 17 March 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where PHNX Utilities Limited is registered
The registered office is in Chester le Street (DH2), in the County Durham local authority area, North East. Show DH2 3QJ on a map.
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What happens if PHNX Utilities 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 18 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 19 Dec 2026 to 18 Jan 2027 | £150 |
| 1 to 3 months late | 19 Jan 2027 to 18 Mar 2027 | £375 |
| 3 to 6 months late | 19 Mar 2027 to 18 Jun 2027 | £750 |
| More than 6 months late | From 19 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16323838
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 March 2025 (1 year ago)
- Registered office
- 6 Elm Crescent, Kimblesworth, Chester le Street, DH2 3QJ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 17 March 2026
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 Chester le Street
Other active specialist construction companies registered in Chester le Street.
- RJ Groundworks (North) Ltd2025
- RK Utilities Limited2024
- Ryder Utilities Ltd2024
- Spartan Construction Management Limited2017
- A.S.L Utilities Ltd2023
- Antonio Scaffolding (Ne) Limited2018
- Baumahn Technical Services Ltd2025
- Castle Services Limited2005
All specialist construction companies in Chester le Street · All trades in Chester le Street · Specialist contractors across the UK
Frequently asked questions
When are PHNX Utilities Limited's accounts due?
PHNX Utilities Limited's next accounts are due at Companies House by 18 December 2026 (in 66 days), covering the period to 31 March 2026.
When is PHNX Utilities Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 17 March 2026, due by 17 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is PHNX Utilities Limited still trading?
PHNX Utilities 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 PHNX Utilities Limited do?
PHNX Utilities Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is PHNX Utilities Limited?
PHNX Utilities Limited was incorporated on 18 March 2025, 1 year ago.
What is the penalty if PHNX Utilities 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 PHNX Utilities 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.