- Companies
- Electricians
- London
- Sjo Electrical Services Limited
Sjo Electrical Services Limited
- Company number
- 16789828
- Incorporated
- 16 Oct 2025
- Registered office
- 32 ST. Lukes Close, London, SE25 4SX
- Nature of business
- Electrical installation
Sjo Electrical Services Limited is a newly incorporated private limited company registered in London, company number 16789828, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 March 2026, as filed at Companies House.
Where Sjo Electrical Services Limited is registered
The registered office is in London (SE25), in the Croydon local authority area, London. Show SE25 4SX on a map.
Other trade companies in SE25
- Luna Plumbing LtdPlumbers and heating engineers
- Mendivra LtdJoiners and carpenters
- Squeaky Mastery Services LtdCleaning companies
- MM(P)M LtdProperty developers
- Meysam Electrical LtdElectricians
- Madej Property Maintenance LtdFinishing trades
- Leonardo Bespoke Joinery LtdJoiners and carpenters
- GCS Electrical Services LimitedElectricians
What happens if Sjo Electrical Services 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 16789828
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 October 2025
- Registered office
- 32 ST. Lukes Close, London, SE25 4SX
- 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 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.
- SK Electrical Services (UK) Ltd2012
- Skeem's Electrical Services Ltd2025
- SKT Electrical Automation Ltd2021
- Sky Bizz Ltd2021
- Sky Energy Ltd2019
- Skybart Electrical Ltd2024
- Skyborg Ltd2016
- Skyscape Group Ltd2018
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Sjo Electrical Services Limited's accounts due?
Sjo Electrical Services Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Sjo Electrical Services Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Sjo Electrical Services Limited still trading?
Sjo Electrical Services 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 Sjo Electrical Services Limited do?
Sjo Electrical Services Limited is registered under Electrical installation (SIC 43210).
How old is Sjo Electrical Services Limited?
Sjo Electrical Services Limited was incorporated on 16 October 2025, less than a year ago.
What is the penalty if Sjo Electrical Services 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 Sjo Electrical Services 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.