- Companies
- Electricians
- Liverpool
- Siren Fire & Security Ltd
Siren Fire & Security Ltd
- Company number
- 13622128
- Incorporated
- 14 Sep 20215 years trading
- Registered office
- 22 the Moorings, Liverpool, L31 2PS
- Nature of business
- Electrical installation
Siren Fire & Security Ltd is a 5-year-old private limited company registered in Liverpool, company number 13622128, one of 489 electrical contractors in Liverpool. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £2,979 (+154.6%) on the year before, to £4,906.
- Current assets of £133K against £148K owed within a year: 0.9 times cover.
- 7 employees on average, up from 5 the year before.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £4,906 | £133K | £148K | 7 | |
| 30 Sep 2024 | £1,927 | £116K | £131K | 5 |
Where Siren Fire & Security Ltd is registered
The registered office is in Liverpool (L31), in the Sefton local authority area, North West. Show L31 2PS on a map.
Other trade companies in L31
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- MBH Plumbing and Mechanical Services LtdPlumbers and heating engineers
- Verdenza Cleaning & Property Services LtdFacilities management
- PG Autos Liverpool LtdMechanics and garages
- RH Roofing Solutions LtdBuilders
- Ta Electrical North West LimitedElectricians
- Toprank Lifting LtdBuilders
- Powercurve LtdElectricians
Also registered at this address
1 other company uses the same registered office as Siren Fire & Security Ltd.
- Telfair LtdLandscapers and gardeners
What happens if Siren Fire & 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 13622128
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 September 2021 (5 years ago)
- Registered office
- 22 the Moorings, Liverpool, L31 2PS
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 13 September 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 Liverpool
Other active electrical contractors registered in Liverpool.
- SJP Electrical (NW) Ltd2011
- SJW Wind Ltd2025
- Skarratts Electrical Services Ltd2026
- Sla Electrical Services Ltd2020
- SLS Communications Limited2010
- SM Installations (NW) Ltd2018
- Smart Electrical Integrations Ltd2021
- SMR Electrical Contractors Ltd2018
All electrical contractors in Liverpool · All trades in Liverpool · Electricians across the UK
Frequently asked questions
When are Siren Fire & Security Ltd's accounts due?
Siren Fire & Security Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Siren Fire & Security Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Siren Fire & Security Ltd still trading?
Siren Fire & Security Ltd is listed as active on the Companies House register (checked 13 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 Siren Fire & Security Ltd do?
Siren Fire & Security Ltd is registered under Electrical installation (SIC 43210).
How old is Siren Fire & Security Ltd?
Siren Fire & Security Ltd was incorporated on 14 September 2021, 5 years ago.
What is the penalty if Siren Fire & 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 Siren Fire & Security Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.