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- Assi Electrical and Security Ltd
Company profile · Electricians
Assi Electrical and Security Ltd
Assi Electrical and Security Ltd is a 8-year-old private limited company registered in Hounslow, company number 11478539, one of 42 electrical contractors in Hounslow. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 July 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Assi Electrical and Security Ltd over the years
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 £138 (+17.8%) on the year before, to -£638.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £869 against £2,262 owed within a year: 0.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | -£638 | £869 | £2,262 | 1 | |
| 31 Jul 2024 | -£776 | £4,802 | £6,333 | 1 | |
| 31 Jul 2023 | -£4,587 | £2 | £6,013 | 1 | |
| 31 Jul 2022 | -£2,356 | £212 | £3,992 | 0 | |
| 31 Jul 2021 | -£267 | £1,496 | £3,677 | 1 | |
| 31 Jul 2020 | -£5,636 | £534 | £649 | 1 | |
| 31 Jul 2019 | -£4,769 | £27 |
Where Assi Electrical and Security Ltd is registered
The registered office is in Hounslow (TW3), in the Hounslow local authority area, London. Show TW3 2NR on a map.
Other trade companies in TW3
- Bela Building Development LimitedProperty developers
- JTRC LtdPlumbers and heating engineers
- RS Motoring LtdMotor traders
- Ramidi Constructions LtdBuilders
- Axis Projects 01 LtdBuilders
- WBSC LtdProperty developers
- Khosa Construction Group LtdProperty developers
- MJ Garden and Cleaning Solutions LtdCleaning companies
What happens if Assi Electrical and Security Ltd 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 11478539
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 July 2018 (8 years ago)
- Registered office
- 177 Heath Road, Hounslow, Middlesex, TW3 2NR
- Nature of business
- Electrical installation (SIC 43210)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 21 July 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 Hounslow
Other active electrical contractors registered in Hounslow.
- Cheema PB08 Ltd2020
- CSV Electrical Ltd2025
- D&N Electrics Ltd2021
- Dave Electrical Services Limited2019
- Electech Safety Solutions Ltd2024
- Electronic & Satellite Solutions Ltd2014
- Fuse & Go Ltd2026
- Futuram Services Limited2017
All electrical contractors in Hounslow · All trades in Hounslow · Electricians across the UK
Frequently asked questions
When are Assi Electrical and Security Ltd's accounts due?
Assi Electrical and Security Ltd's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is Assi Electrical and Security Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Assi Electrical and Security Ltd still trading?
Assi Electrical and Security Ltd 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 Assi Electrical and Security Ltd do?
Assi Electrical and Security Ltd is registered under Electrical installation (SIC 43210); Other specialised construction activities n.e.c. (SIC 43999).
How old is Assi Electrical and Security Ltd?
Assi Electrical and Security Ltd was incorporated on 23 July 2018, 8 years ago.
What is the penalty if Assi Electrical and Security Ltd 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 Assi Electrical and Security Ltd on Companies House for filed documents, officers and the full history.
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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.