- Companies
- Electricians
- London
- Cavendish Fire and Security Ltd
Cavendish Fire and Security Ltd
- Company number
- 14486726
- Incorporated
- 15 Nov 20223 years trading
- Registered office
- 7 Bell Yard, London, WC2A 2JR
- Nature of business
- Electrical installation; Security systems service activities
Cavendish Fire and Security Ltd is a 3-year-old private limited company registered in London, company number 14486726, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £96K (+65.2%) on the year before, to £244K.
- Current assets of £243K against £49K owed within a year: 5.0 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £244K | £243K | £49K | 2 | |
| 30 Nov 2024 | £148K | £167K | £43K | 1 | |
| 30 Nov 2023 | £51K | £89K | £38K | 1 |
Where Cavendish Fire and Security Ltd is registered
The registered office is in London (WC2A), in the Westminster local authority area, London. Show WC2A 2JR on a map.
Other trade companies in WC2A
- Eg Cleaner Company LtdCleaning companies
- Moore's Scaffolding LtdScaffolders
- Regal Motors LimitedMechanics and garages
- Lifetime Roofing Specialist LimitedRoofers
- MJ Construction Contractor LtdBuilders
- Ridgeworks (South) LtdRoofers
- Spacex Concrete LtdProperty developers
- Nationwide Roofing & Warranty LimitedBuilders
Shared registered office
221 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Cavendish Fire 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 31 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 14486726
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 November 2022 (3 years ago)
- Registered office
- 7 Bell Yard, London, WC2A 2JR
- Nature of business
- Electrical installation (SIC 43210)
Security systems service activities (SIC 80200) - Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 14 November 2025
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.
- CBS Dartford Limited2009
- Cbyb Maintenance Solutions Ltd2024
- CC Electrical Installations London Ltd2017
- CC Electrical Services (London) Ltd2013
- CCTV Master Ltd2025
- CDP Trading Ltd2024
- Cee & Jay Maintenance Limited2023
- Centex Ltd2023
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Cavendish Fire and Security Ltd's accounts due?
Cavendish Fire and Security Ltd's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Cavendish Fire and Security Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Cavendish Fire and Security Ltd still trading?
Cavendish Fire 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 Cavendish Fire and Security Ltd do?
Cavendish Fire and Security Ltd is registered under Electrical installation (SIC 43210); Security systems service activities (SIC 80200).
How old is Cavendish Fire and Security Ltd?
Cavendish Fire and Security Ltd was incorporated on 15 November 2022, 3 years ago.
What is the penalty if Cavendish Fire 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 Cavendish Fire and Security Ltd 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.