- Companies
- Electricians
- Preston
- Csi Security Systems Limited
Csi Security Systems Limited
- Company number
- 06935371
- Incorporated
- 16 Jun 200917 years trading
- Registered office
- 9 Victoria Road, Fulwood, Preston, Lancashire, PR2 8ND
- Nature of business
- Electrical installation
Csi Security Systems Limited is a 17-year-old private limited company registered in Preston, company number 06935371, one of 213 electrical contractors in Preston. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £2,253 (+14.7%) on the year before, to £18K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £22K against £20K owed within a year: 1.1 times cover.
- 2 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £18K | £22K | £20K | 2 | |
| 30 Jun 2024 | £15K | £25K | £13K | 2 | |
| 30 Jun 2023 | £11K | £22K | £15K | 2 | |
| 30 Jun 2022 | £20K | £33K | £17K | 2 | |
| 30 Jun 2021 | £33K | £45K | £16K | 2 | |
| 30 Jun 2020 | £8,679 | £22K | £20K | 2 | |
| 30 Jun 2019 | £21K | £32K | £18K | 2 | |
| 30 Jun 2018 | £4,499 | £23K | £25K | ||
| 30 Jun 2017 | £1,332 | £39K | £42K | ||
| 30 Jun 2016 | £156 | £11K | £28K | £33K |
Where Csi Security Systems Limited is registered
The registered office is in Preston (PR2), in the Preston local authority area, North West. Show PR2 8ND on a map.
Other trade companies in PR2
- Northway Cars LtdMotor traders
- Belleville Developments LtdProperty developers
- Guild Enterprises LimitedElectricians
- Hollin Brickwork LtdJoiners and carpenters
- Circuitdrive Automotive LtdMechanics and garages
- Walker Electrical Renewables LtdElectricians
- Novellofuturo LtdMotor traders
- Bsmali Builds LimitedBuilders
Also registered at this address
11 other companies use the same registered office as Csi Security Systems Limited.
- 4 U Designs LimitedFinishing trades
- A.J. Holden Joinery & Building LimitedJoiners and carpenters
- Clif Tech Electrical LtdElectricians
- Complete Construction and Interiors LtdInstallers
- Home Insulation Services LtdInstallers
- J K Beardsworth LimitedBuilders
- MK Automobiles LimitedMotor traders
- Nix LimitedCleaning companies
- Restoration Man LtdProperty developers
- Richard Webster LimitedMachinery repair and installation
- VNP Retail LimitedFinishing trades
What happens if Csi Security Systems 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 06935371
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 June 2009 (17 years ago)
- Registered office
- 9 Victoria Road, Fulwood, Preston, Lancashire, PR2 8ND
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 16 June 2026
- Previous names
- Colway Services Limited (until 2 Nov 2015)
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 Preston
Other active electrical contractors registered in Preston.
- Current Flow Electrical Services Ltd2026
- Cyrus Cable Limited2005
- D.A.S. Protection Limited2008
- Dagger Electrical Services Ltd2019
- David D Electrical Ltd2026
- DB Fire & Security Ltd2023
- DBS Electrical (Northwest) Limited2021
- Down to Earth Electrics Limited2003
All electrical contractors in Preston · All trades in Preston · Electricians across the UK
Frequently asked questions
When are Csi Security Systems Limited's accounts due?
Csi Security Systems Limited's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Csi Security Systems Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Csi Security Systems Limited still trading?
Csi Security Systems 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 Csi Security Systems Limited do?
Csi Security Systems Limited is registered under Electrical installation (SIC 43210).
How old is Csi Security Systems Limited?
Csi Security Systems Limited was incorporated on 16 June 2009, 17 years ago.
What is the penalty if Csi Security Systems 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 Csi Security Systems 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.