- Companies
- Specialist contractors
- Mansfield
- Sustainable Energy Connections Limited
Sustainable Energy Connections Limited
- Company number
- 07148627
- Incorporated
- 5 Feb 201016 years trading
- Registered office
- Unit A Crewe Close, Blidworth, Mansfield, NG21 0TA
- Nature of business
- Other specialised construction activities n.e.c.
Sustainable Energy Connections Limited is a 16-year-old private limited company registered in Mansfield, company number 07148627, one of 87 specialist construction companies in Mansfield. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £42K (+5.4%) on the year before, to £826K.
- Net assets rose in 7 of 7 year-on-year comparisons on record.
- Current assets of £828K against £312K owed within a year: 2.7 times cover.
- 8 employees on average, up from 7 the year before.
- Balance sheets on record for 9 years, 2014 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2024 | £826K | £320K | £828K | £312K | 8 |
| 30 Apr 2023 | £783K | £291K | £556K | £84K | 7 |
| 30 Apr 2020 | £712K | £367K | £746K | £130K | 7 |
| 30 Apr 2019 | £637K | £124K | £774K | £255K | 8 |
| 30 Apr 2018 | £522K | £446K | £646K | £208K | 6 |
| 30 Apr 2017 | £468K | £371K | £625K | £215K | 4 |
| 30 Apr 2016 | £274K | £344K | £419K | £195K | |
| 30 Apr 2015 | £72K | £189K | £231K | £177K | |
| 30 Apr 2014 | -£98K | £143K | £225K | £334K |
Public contracts won
Sustainable Energy Connections Limited has one public sector contract award on record; the ones with their own published value total £29K (2015). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Welland Procurement Unit | Gas Supply Installation Works, Beckmill Court, Melton Mowbray | £29K | 31 Jul 2015 |
Where Sustainable Energy Connections Limited is registered
The registered office is in Mansfield (NG21), in the Newark and Sherwood local authority area, East Midlands. Show NG21 0TA on a map.
Other trade companies in NG21
- MSWF Retail LtdMotor traders
- D Nelson Electrical LimitedElectricians
- Hardback Tree Services LtdLandscapers and gardeners
- Evergreen Fencing & Landscapes LimitedLandscapers and gardeners
- Robin Hood Refrigeration LtdPlumbers and heating engineers
- Apex Armour Coatings LtdFinishing trades
- Pba Contracts LimitedInstallers
- Rainworth Roofing LimitedRoofers
What happens if Sustainable Energy Connections 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 07148627
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 February 2010 (16 years ago)
- Registered office
- Unit A Crewe Close, Blidworth, Mansfield, NG21 0TA
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 5 February 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 Mansfield
Other active specialist construction companies registered in Mansfield.
- T.M.M. & Building Limited2005
- The Mill Project Limited2019
- Tour Construction Limited2010
- Universal Civils and Build Ltd2019
- Universal Fabrications Limited2025
- Universal Property Rentals Limited2016
- Uss Site Solutions Limited2026
- Vovka Developments Ltd2024
All specialist construction companies in Mansfield · All trades in Mansfield · Specialist contractors across the UK
Frequently asked questions
When are Sustainable Energy Connections Limited's accounts due?
Sustainable Energy Connections Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Sustainable Energy Connections Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Sustainable Energy Connections Limited still trading?
Sustainable Energy Connections 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 Sustainable Energy Connections Limited do?
Sustainable Energy Connections Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Sustainable Energy Connections Limited?
Sustainable Energy Connections Limited was incorporated on 5 February 2010, 16 years ago.
Has Sustainable Energy Connections Limited won public sector contracts?
Yes. Sustainable Energy Connections Limited has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £29K), most recently from Welland Procurement Unit.
What is the penalty if Sustainable Energy Connections 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 Sustainable Energy Connections 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.