- Companies
- Installers
- Eastleigh
- Knight Fire & Security Ltd
Knight Fire & Security Ltd
- Company number
- 05797892
- Incorporated
- 27 Apr 200620 years trading
- Registered office
- Fire House Mayflower Close, Chandlers Ford, Eastleigh, Hampshire, SO53 4AR
- Nature of business
- Other construction installation
Knight Fire & Security Ltd is a 20-year-old private limited company registered in Eastleigh, company number 05797892, one of 55 installation companies (insulation, lifts, shutters and similar) in Eastleigh. 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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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 £111K (+71.8%) on the year before, to £266K.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £541K against £231K owed within a year: 2.3 times cover.
- 12 employees on average, up from 10 the year before.
- 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 Mar 2025 | £266K | £332K | £541K | £231K | 12 |
| 31 Mar 2024 | £155K | £260K | £481K | £229K | 10 |
| 31 Mar 2023 | £55K | £451K | £299K | 10 | |
| 31 Mar 2022 | £173K | £466K | £224K | 9 | |
| 31 Mar 2021 | £258K | £390K | £551K | £203K | 9 |
| 31 Mar 2020 | £350K | £271K | £479K | £154K | 9 |
| 31 Mar 2019 | £508K | £363K | £563K | £138K | 9 |
Where Knight Fire & Security Ltd is registered
The registered office is in Eastleigh (SO53), in the Eastleigh local authority area, South East. Show SO53 4AR on a map.
Other trade companies in SO53
- Surface Dressing UK LtdCivil engineering
- Audin Construction LtdSpecialist contractors
- Jelly West Developments LtdProperty developers
- Climate and Renewables Service LtdPlumbers and heating engineers
- McCarthy Construct LimitedProperty developers
- Cura Projects LimitedFinishing trades
- Tubmate LtdMachinery repair and installation
- Brook Hill Developments LimitedProperty developers
Also registered at this address
1 other company uses the same registered office as Knight Fire & Security Ltd.
- M.W.E. LimitedElectricians
What happens if Knight 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 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
- 05797892
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 April 2006 (20 years ago)
- Registered office
- Fire House Mayflower Close, Chandlers Ford, Eastleigh, Hampshire, SO53 4AR
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 27 April 2026
- Charges (mortgages)
- 0 outstanding of 1 registered
- Previous names
- Knight Security (Southport) Ltd. (until 1 Apr 2021)
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Eastleigh
Other active installation companies (insulation, lifts, shutters and similar) registered in Eastleigh.
- Land Building Services Ltd2014
- Larchwood Construction Ltd2019
- Liftability Limited1999
- M4 B&D Limited2011
- Macmills Ltd2018
- Marvel Paving and Construction Ltd2019
- Medmerry Services Ltd2023
- Mint Kitchens & Bathrooms Ltd2024
All installation companies (insulation, lifts, shutters and similar) in Eastleigh · All trades in Eastleigh · Installers across the UK
Frequently asked questions
When are Knight Fire & Security Ltd's accounts due?
Knight Fire & Security Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Knight Fire & Security Ltd'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 Knight Fire & Security Ltd still trading?
Knight Fire & 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 Knight Fire & Security Ltd do?
Knight Fire & Security Ltd is registered under Other construction installation (SIC 43290).
How old is Knight Fire & Security Ltd?
Knight Fire & Security Ltd was incorporated on 27 April 2006, 20 years ago.
What is the penalty if Knight 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 Knight Fire & 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.