- Companies
- Plumbers and heating engineers
- Chesterfield
- Phennex Limited
Phennex Limited
- Company number
- 15078780
- Incorporated
- 17 Aug 20233 years trading
- Registered office
- 33 Hornbeam Lane, Wingerworth, Chesterfield, S42 6FZ
- Nature of business
- Plumbing, heat and air-conditioning installation
Phennex Limited is a 3-year-old private limited company registered in Chesterfield, company number 15078780, one of 115 plumbing and heating companies in Chesterfield. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Phennex LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 down £10K (-166.3%) on the year before, to -£16K.
- Current assets of £29K against £68K owed within a year: 0.4 times cover.
- 4 employees on average, up from 2 the year before.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | -£16K | £29K | £68K | 4 | |
| 31 Mar 2024 | -£6,081 | £11K | £30K | 2 |
Where Phennex Limited is registered
The registered office is in Chesterfield (S42), in the North East Derbyshire local authority area, East Midlands. Show S42 6FZ on a map.
Other trade companies in S42
- Ashover Structures LtdBuilders
- Adam Robinson Design LimitedJoiners and carpenters
- Hi Line Roofing LtdRoofers
- Pitstop Tupton Car Wash LimitedCleaning companies
- Abel Demounts LtdMechanics and garages
- JHP Property Associates LtdProperty developers
- Pinfold Traditional Building Services LtdRoofers
- Oasis Developments Group LtdBuilders
What happens if Phennex 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 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
- 15078780
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 August 2023 (3 years ago)
- Registered office
- 33 Hornbeam Lane, Wingerworth, Chesterfield, S42 6FZ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 16 August 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Chesterfield
Other active plumbing and heating companies registered in Chesterfield.
- Plumbear Limited2025
- Plumblite (Chesterfield) Ltd2026
- Plumblite Limited2021
- Plumbwell4U Ltd2022
- Premier Plumbing and Heating Systems Limited2018
- Premier Plumbing Solutions Ltd2023
- Priority Plumbing & Heating Ltd2024
- Pro Plumb Chesterfield Ltd2024
All plumbing and heating companies in Chesterfield · All trades in Chesterfield · Plumbers and heating engineers across the UK
Frequently asked questions
When are Phennex Limited's accounts due?
Phennex Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Phennex Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Phennex Limited still trading?
Phennex 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 Phennex Limited do?
Phennex Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Phennex Limited?
Phennex Limited was incorporated on 17 August 2023, 3 years ago.
What is the penalty if Phennex 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 Phennex 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.