- Companies
- Installers
- London
- Helios Construction London Limited
Helios Construction London Limited
- Company number
- 16580989
- Incorporated
- 14 Jul 20251 year trading
- Registered office
- C/O Zedwell Hotel Great Windmill Street, London Trocadero, London, W1D 7DH
- Nature of business
- Other construction installation; Activities of construction holding companies
Helios Construction London Limited is a 1-year-old private limited company registered in London, company number 16580989, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. 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
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Helios Construction London Limited is registered
The registered office is in London (W1D), in the Westminster local authority area, London. Show W1D 7DH on a map.
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- Clobotics UK LtdMachinery repair and installation
Also registered at this address
1 other company uses the same registered office as Helios Construction London Limited.
- Criterion Developments LimitedInstallers
What happens if Helios Construction London 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
- 16580989
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 July 2025 (1 year ago)
- Registered office
- C/O Zedwell Hotel Great Windmill Street, London Trocadero, London, W1D 7DH
- Nature of business
- Other construction installation (SIC 43290)
Activities of construction holding companies (SIC 64203) - Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 13 July 2026
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 London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Hellforge Steel S.D. Ltd2023
- Hemel Solar Limited2022
- Herbert Kerr Limited2022
- Heritage Consultum Limited2025
- Heritage Wood & Interiors Ltd2026
- Herzberger Bau- Und Umweltzentrum Limited2008
- Hexagon Developments Limited2003
- Heybridge Partners Limited2023
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Helios Construction London Limited's accounts due?
Helios Construction London Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Helios Construction London 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 Helios Construction London Limited still trading?
Helios Construction London 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 Helios Construction London Limited do?
Helios Construction London Limited is registered under Other construction installation (SIC 43290); Activities of construction holding companies (SIC 64203).
How old is Helios Construction London Limited?
Helios Construction London Limited was incorporated on 14 July 2025, 1 year ago.
What is the penalty if Helios Construction London 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 Helios Construction London 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.