- Companies
- Plumbers and heating engineers
- Fareham
- Diamond Green Energy Limited
Diamond Green Energy Limited
- Company number
- 07512244
- Incorporated
- 1 Feb 201115 years trading
- Registered office
- Unit 4 Apex Centre, Speedfields Park, Fareham, Hampshire, PO14 1TP
- Nature of business
- Plumbing, heat and air-conditioning installation
Diamond Green Energy Limited is a 15-year-old private limited company registered in Fareham, company number 07512244, one of 119 plumbing and heating companies in Fareham. Its next accounts are due at Companies House on 31 March 2028, and the CT600 for the period to 30 June 2027 is due at HMRC on 30 June 2028.
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 £123K on the year before, to £116K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £1.3M against £788K owed within a year: 1.6 times cover.
- 17 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2026 | £116K | £79K | £1.3M | £788K | 17 |
| 28 Feb 2025 | -£6,618 | £32K | £705K | £595K | 17 |
| 29 Feb 2024 | -£83K | £97K | £417K | £357K | 16 |
| 28 Feb 2023 | £16K | £121K | £326K | £266K | 14 |
| 28 Feb 2022 | £9,517 | £107K | £239K | £153K | 14 |
| 28 Feb 2021 | £555 | £135K | £239K | £124K | 12 |
| 29 Feb 2020 | £128 | £58K | £138K | £145K | 12 |
| 28 Feb 2019 | £110 | £41K | £87K | £90K | 12 |
| 28 Feb 2018 | £1,206 | £20K | £67K | £69K | 13 |
| 28 Feb 2017 | -£1,786 | £29K | £44K | £53K | 8 |
Who runs and owns Diamond Green Energy Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| L*** S*** | Director | Feb 2011 |
| I*** S*** | Director | Sep 2018 |
People with significant control (2)
Where Diamond Green Energy Limited is registered
The registered office is in Fareham (PO14), in the Fareham local authority area, South East. Show PO14 1TP on a map.
Other trade companies in PO14
- Conifer Rise LimitedProperty developers
- S C Metters Hardscapes LimitedLandscapers and gardeners
- Calms Developments LtdProperty developers
- Solent Plumbing and Heating LtdBuilders
- Ark Home Technologies LtdElectricians
- Nature’S Touch Cleaning Services LimitedCleaning companies
- Prime Build South LtdFinishing trades
- Yoemans Project LtdProperty developers
What happens if Diamond Green Energy 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 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2028 to 30 Apr 2028 | £150 |
| 1 to 3 months late | 1 May 2028 to 30 Jun 2028 | £375 |
| 3 to 6 months late | 1 Jul 2028 to 30 Sep 2028 | £750 |
| More than 6 months late | From 1 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 2029 | 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
- 07512244
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 February 2011 (15 years ago)
- Registered office
- Unit 4 Apex Centre, Speedfields Park, Fareham, Hampshire, PO14 1TP
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 June 2026
- Last confirmation statement
- 13 July 2026
- Previous names
- Diamond Gas and Heating Limited (until 23 Aug 2023)
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 Fareham
Other active plumbing and heating companies registered in Fareham.
- Draco Gas & Heating Limited2021
- Drawlim Services Ltd2025
- Dunlop Plumbing, Heating & Gas Services Ltd.2007
- Ecoairfit Ltd2026
- Ee Ashp Limited2025
- Enviro-Heat South Ltd2024
- Excel Gas Limited2017
- Fareham Plumbing and Heating Limited2017
All plumbing and heating companies in Fareham · All trades in Fareham · Plumbers and heating engineers across the UK
Frequently asked questions
When are Diamond Green Energy Limited's accounts due?
Diamond Green Energy Limited's next accounts are due at Companies House by 31 March 2028 (in 535 days), covering the period to 30 June 2027.
When is Diamond Green Energy Limited's CT600 due?
The CT600 for the period to 30 June 2027 is due at HMRC by 30 June 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2028.
Is Diamond Green Energy Limited still trading?
Diamond Green Energy 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 Diamond Green Energy Limited do?
Diamond Green Energy Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Diamond Green Energy Limited?
Diamond Green Energy Limited was incorporated on 1 February 2011, 15 years ago.
Who runs Diamond Green Energy Limited?
Diamond Green Energy Limited has 2 active directors, the longest-serving appointed in Feb 2011. Their names and service addresses are on the Companies House register.
Who owns Diamond Green Energy Limited?
2 people or companies have significant control of Diamond Green Energy Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Diamond Green Energy 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 Diamond Green Energy 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.