- Companies
- Specialist contractors
- Rotherham
- SB Security Systems Limited
SB Security Systems Limited
- Company number
- 04490030
- Incorporated
- 19 Jul 200224 years trading
- Registered office
- Quarry House Holme Hall Lane, Stainton, Rotherham, South Yorkshire, S66 7RD
- Nature of business
- Other specialised construction activities n.e.c.
SB Security Systems Limited is a 24-year-old private limited company registered in Rotherham, company number 04490030, one of 122 specialist construction companies in Rotherham. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 down £29K (-93.5%) on the year before, to £2,006.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £49K against £26K owed within a year: 1.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £2,006 | £49K | £26K | 1 | |
| 31 Aug 2024 | £31K | £88K | £31K | 1 | |
| 31 Aug 2023 | £37K | £88K | £79K | 1 | |
| 31 Aug 2022 | £57K | £107K | £11K | 1 | |
| 31 Aug 2021 | £20K | £97K | £78K | 1 | |
| 31 Aug 2020 | -£20K | £72K | £91K | 1 | |
| 30 Aug 2020 | -£20K | £72K | £91K | 1 | |
| 31 Aug 2019 | -£3,054 | £42K | 2 | ||
| 31 Aug 2018 | -£11K | £62K | 2 | ||
| 31 Aug 2017 | -£17K | £46K | 2 |
Where SB Security Systems Limited is registered
The registered office is in Rotherham (S66), in the Doncaster local authority area, Yorkshire and The Humber. Show S66 7RD on a map.
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What happens if SB 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 04490030
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 July 2002 (24 years ago)
- Registered office
- Quarry House Holme Hall Lane, Stainton, Rotherham, South Yorkshire, S66 7RD
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 19 July 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 Rotherham
Other active specialist construction companies registered in Rotherham.
- Seaton Park Ltd.2002
- Signal Raf Limited2013
- Signal TM Ltd2024
- Simple Deco Ltd2018
- Site Accommodation Specialists Ltd2022
- Site Welding Solutions Ltd2018
- Smith Grand Build Ltd2026
- SP Drylining Ltd2021
All specialist construction companies in Rotherham · All trades in Rotherham · Specialist contractors across the UK
Frequently asked questions
When are SB Security Systems Limited's accounts due?
SB Security Systems Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is SB Security Systems Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is SB Security Systems Limited still trading?
SB 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 SB Security Systems Limited do?
SB Security Systems Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is SB Security Systems Limited?
SB Security Systems Limited was incorporated on 19 July 2002, 24 years ago.
What is the penalty if SB 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 SB 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.