- Companies
- Installers
- Milton Keynes
- Green Energy Efficiency Ltd
Green Energy Efficiency Ltd
- Company number
- 13591242
- Incorporated
- 29 Aug 20215 years trading
- Registered office
- 8 Hadrians Drive, Bancroft, Milton Keynes, MK13 0PP
- Nature of business
- Other construction installation
Green Energy Efficiency Ltd is a 5-year-old private limited company registered in Milton Keynes, company number 13591242, one of 128 installation companies (insulation, lifts, shutters and similar) in Milton Keynes. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 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 £66K (+101.5%) on the year before, to £132K.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £215K against £83K owed within a year: 2.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £132K | £215K | £83K | 1 | |
| 31 Aug 2024 | £65K | £123K | £57K | 1 | |
| 31 Aug 2023 | £28K | £35K | £6,232 | 1 | |
| 31 Aug 2022 | £6,137 | £6,137 | 1 |
Where Green Energy Efficiency Ltd is registered
The registered office is in Milton Keynes (MK13), in the Milton Keynes local authority area, South East. Show MK13 0PP on a map.
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What happens if Green Energy Efficiency 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- 13591242
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 August 2021 (5 years ago)
- Registered office
- 8 Hadrians Drive, Bancroft, Milton Keynes, MK13 0PP
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 28 August 2025
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Milton Keynes
Other active installation companies (insulation, lifts, shutters and similar) registered in Milton Keynes.
- H&H Building and Maintenance Ltd2024
- Homeworld Improvements Ltd2023
- Ian Ward Flooring Limited2018
- James Murphy Services Limited2025
- Jaspar Property Solutions Ltd2026
- JH Property Solutions Limited2012
- JP Fencing MK Ltd2023
- K & J Ductwork Limited2018
All installation companies (insulation, lifts, shutters and similar) in Milton Keynes · All trades in Milton Keynes · Installers across the UK
Frequently asked questions
When are Green Energy Efficiency Ltd's accounts due?
Green Energy Efficiency Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Green Energy Efficiency Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Green Energy Efficiency Ltd still trading?
Green Energy Efficiency 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 Green Energy Efficiency Ltd do?
Green Energy Efficiency Ltd is registered under Other construction installation (SIC 43290).
How old is Green Energy Efficiency Ltd?
Green Energy Efficiency Ltd was incorporated on 29 August 2021, 5 years ago.
What is the penalty if Green Energy Efficiency 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 Green Energy Efficiency 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.