- Companies
- Electricians
- London
- Arm Electrical Construction Limited
Arm Electrical Construction Limited
- Company number
- 15415318
- Incorporated
- 16 Jan 20242 years trading
- Registered office
- 105-111 Euston Street, London, NW1 2EW
- Nature of business
- Electrical installation
Arm Electrical Construction Limited is a 2-year-old private limited company registered in London, company number 15415318, one of 3,448 electrical contractors 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
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House.
Where Arm Electrical Construction Limited is registered
The registered office is in London (NW1), in the Camden local authority area, London. Show NW1 2EW on a map.
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Also registered at this address
3 other companies use the same registered office as Arm Electrical Construction Limited.
- M.J. Hernon Engineering Surveys LimitedCivil engineering
- Next Phase Lighting LtdElectricians
- Waterview Developments LimitedProperty developers
What happens if Arm Electrical Construction 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
- 15415318
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 January 2024 (2 years ago)
- Registered office
- 105-111 Euston Street, London, NW1 2EW
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 29 January 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in London
Other active electrical contractors registered in London.
- Arrk Contractors Ltd2022
- Art Blue TW2 Ltd2015
- Art Electric Ltd2021
- Arthur Electrical 24H Ltd2026
- Artifis Ltd2026
- Artvolt Systems Limited2019
- Arv Automation Limited2026
- Aryanova Ltd2025
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Arm Electrical Construction Limited's accounts due?
Arm Electrical Construction 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 Arm Electrical Construction 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 Arm Electrical Construction Limited still trading?
Arm Electrical Construction 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 Arm Electrical Construction Limited do?
Arm Electrical Construction Limited is registered under Electrical installation (SIC 43210).
How old is Arm Electrical Construction Limited?
Arm Electrical Construction Limited was incorporated on 16 January 2024, 2 years ago.
What is the penalty if Arm Electrical Construction 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 Arm Electrical Construction 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.