- Companies
- Machinery repair and installation
- London
- Longus Solar Power Engineering Limited
Longus Solar Power Engineering Limited
- Company number
- 10749066
- Incorporated
- 2 May 20179 years trading
- Registered office
- 415 High Street, Office C, 1ST Floor, London, E15 4QZ
- Nature of business
- Installation of industrial machinery and equipment; Production of electricity; Distribution of electricity; Trade of electricity
Longus Solar Power Engineering Limited is a 9-year-old private limited company registered in London, company number 10749066, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £1,712 (+0%) on the year before, to £9.9M.
- Net assets rose in 1 of 7 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £9.9M | £1,712 | £0 | 0 | |
| 31 May 2024 | £9.9M | £100K | 2 | ||
| 31 May 2023 | £10M | £0 | £44K | 2 | |
| 31 May 2022 | £10M | ||||
| 31 May 2021 | £10M | ||||
| 31 May 2020 | £10M | ||||
| 31 May 2019 | £10M | ||||
| 31 May 2018 | £10M |
Where Longus Solar Power Engineering Limited is registered
The registered office is in London (E15), in the Newham local authority area, London. Show E15 4QZ on a map.
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Also registered at this address
1 other company uses the same registered office as Longus Solar Power Engineering Limited.
- 4Ar Construction LtdBuilders
What happens if Longus Solar Power Engineering 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 10749066
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 May 2017 (9 years ago)
- Registered office
- 415 High Street, Office C, 1ST Floor, London, E15 4QZ
- Nature of business
- Installation of industrial machinery and equipment (SIC 33200)
Production of electricity (SIC 35110)
Distribution of electricity (SIC 35130)
Trade of electricity (SIC 35140) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 6 December 2025
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in London
Other active machinery repair and installation companies registered in London.
- Lordlaff Rigging Limited2020
- Lorenzo Rope Access Ltd2017
- Loughborough Bike Project Ltd2025
- Louise Tarling Limited2019
- Lovelofters Limited2020
- LS Works Ltd2025
- Lsmarine Ltd2026
- Lsu Plant Repairs Ltd2019
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Frequently asked questions
When are Longus Solar Power Engineering Limited's accounts due?
Longus Solar Power Engineering Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Longus Solar Power Engineering Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Longus Solar Power Engineering Limited still trading?
Longus Solar Power Engineering 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 Longus Solar Power Engineering Limited do?
Longus Solar Power Engineering Limited is registered under Installation of industrial machinery and equipment (SIC 33200); Production of electricity (SIC 35110); Distribution of electricity (SIC 35130); Trade of electricity (SIC 35140).
How old is Longus Solar Power Engineering Limited?
Longus Solar Power Engineering Limited was incorporated on 2 May 2017, 9 years ago.
What is the penalty if Longus Solar Power Engineering 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 Longus Solar Power Engineering 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.