- Companies
- Specialist contractors
- Salisbury
- Security Management Installations Limited
Security Management Installations Limited
- Company number
- 08857422
- Incorporated
- 23 Jan 201412 years trading
- Registered office
- 10 ST. Ann Street, Salisbury, Wiltshire, SP1 2DN
- Nature of business
- Other specialised construction activities n.e.c.
Security Management Installations Limited is a 12-year-old private limited company registered in Salisbury, company number 08857422, one of 68 specialist construction companies in Salisbury. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £57K (+26.5%) on the year before, to £273K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £456K against £188K owed within a year: 2.4 times cover.
- 5 employees on average, up from 4 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £273K | £121K | £456K | £188K | 5 |
| 31 Jan 2024 | £216K | £22K | £405K | £173K | 4 |
| 31 Jan 2023 | £110K | £20K | £197K | £81K | 3 |
| 31 Jan 2022 | £94K | £1,510 | £225K | £124K | 2 |
| 31 Jan 2021 | £73K | £69 | £269K | £183K | 2 |
| 31 Jan 2020 | £67K | £16K | £127K | £90K | 2 |
| 31 Jan 2019 | £71K | £2,865 | £123K | £67K | 2 |
| 31 Jan 2018 | £50K | £36K | £130K | £88K | 2 |
| 31 Jan 2017 | £24K | £3,098 | £161K | £151K | 2 |
| 31 Jan 2016 | £595 | £16K | £44K | £59K |
Who runs and owns Security Management Installations Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| J*** B*** | Director | Jan 2014 |
People with significant control (2)
Where Security Management Installations Limited is registered
The registered office is in Salisbury (SP1), in the Wiltshire local authority area, South West. Show SP1 2DN on a map.
Other trade companies in SP1
- Modular Build Systems LimitedBuilders
- Brennan Building Projects LimitedProperty developers
- MR Mover and Rescue LimitedMechanics and garages
- LC Carpentry & Construction LtdFinishing trades
- Endlessuk LimitedSpecialist contractors
- Brad’S Tree & Landscape Services LtdLandscapers and gardeners
- Riverside House (Developments) LimitedProperty developers
- Alf Construction (Southern) LtdBuilders
Also registered at this address
23 other companies use the same registered office as Security Management Installations Limited.
- Agw (Holdings) LtdPlumbers and heating engineers
- Agw Group LtdPlumbers and heating engineers
- Ambrose Plumbing & Heating LtdPlumbers and heating engineers
- Ame Southern LtdPlumbers and heating engineers
- Andover Fork Truck Services LimitedMotor traders
- Andover Vehicle Solutions LimitedMotor traders
- Ashlar Historic Building Repair LimitedSpecialist contractors
- Dan Walters Motor Mechanics LimitedMechanics and garages
- David Pring Bricklaying LtdSpecialist contractors
- Elmfield Spinney Development LimitedProperty developers
- Fuel Mechanics LimitedMachinery repair and installation
- Gaia Landscapes LtdLandscapers and gardeners
- Graham Dimmer M.O.T. Centre LimitedMechanics and garages
- Heatek Mechanical LtdPlumbers and heating engineers
- Henley Gardeners LimitedLandscapers and gardeners
- Inspired Restoration LimitedProperty developers
- J Amor Services LimitedMechanics and garages
- Lockyer Homes LimitedBuilders
- Mata Construction LimitedSpecialist contractors
- MR Mover and Rescue LimitedMechanics and garages
- Photinia Security LtdLandscapers and gardeners
- Sation LimitedMotor traders
- Simon House Electrical Services LimitedElectricians
What happens if Security Management Installations 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 08857422
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 January 2014 (12 years ago)
- Registered office
- 10 ST. Ann Street, Salisbury, Wiltshire, SP1 2DN
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 23 January 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Salisbury
Other active specialist construction companies registered in Salisbury.
- Silk Services Limited2016
- Southgate Plant Hire Limited2014
- Spencer Hall Historic Building Conservation Ltd2020
- Teffont Joinery Ltd2025
- Ultimate Screw Piling Ltd2020
- Velaplan Limited2012
- Wessex Drainage Solutions Limited2009
- What No Safety Services Limited2002
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Frequently asked questions
When are Security Management Installations Limited's accounts due?
Security Management Installations Limited's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is Security Management Installations Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Security Management Installations Limited still trading?
Security Management Installations 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 Security Management Installations Limited do?
Security Management Installations Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Security Management Installations Limited?
Security Management Installations Limited was incorporated on 23 January 2014, 12 years ago.
Who runs Security Management Installations Limited?
Security Management Installations Limited has 1 active director, the longest-serving appointed in Jan 2014. Their names and service addresses are on the Companies House register.
Who owns Security Management Installations Limited?
2 people or companies have significant control of Security Management Installations Limited: an individual (owns 25% to 50% of the shares); an individual (owns 50% to 75% of the shares).
What is the penalty if Security Management Installations 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 Security Management Installations 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.