- Companies
- Machinery repair and installation
- Nottingham
- Alc Security Systems Limited
Alc Security Systems Limited
- Company number
- 05996253
- Incorporated
- 13 Nov 200619 years trading
- Registered office
- 19-21 Main Road, Gedling, Nottingham, NG4 3HQ
- Nature of business
- Installation of industrial machinery and equipment
Alc Security Systems Limited is a 19-year-old private limited company registered in Nottingham, company number 05996253, one of 194 machinery repair and installation companies in Nottingham. Its next accounts are due at Companies House on 29 August 2027, and the CT600 for the period to 29 November 2026 is due at HMRC on 29 November 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 £14K (-80%) on the year before, to £3,415.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £6,778 against £6,946 owed within a year: 1.0 times cover.
- 1 employee 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 |
|---|---|---|---|---|---|
| 29 Nov 2025 | £3,415 | £3,458 | £6,778 | £6,946 | 1 |
| 29 Nov 2024 | £17K | £5,391 | £29K | £20K | 1 |
| 29 Nov 2023 | £16K | £8,953 | £40K | £33K | 1 |
| 29 Nov 2022 | -£4,560 | £13K | £27K | 1 | |
| 29 Nov 2021 | £7,569 | £0 | £9,397 | £10K | 1 |
| 29 Nov 2020 | £11K | £633 | £9,917 | £11K | 1 |
| 29 Nov 2019 | £1,999 | £208 | £9,485 | £9,522 | 1 |
| 29 Nov 2018 | £18K | £16K | £27K | £11K | 1 |
| 29 Nov 2017 | £17K | £10K | £21K | £7,538 | 1 |
| 29 Nov 2016 | £15K | £4,920 | £23K | £14K | 1 |
Where Alc Security Systems Limited is registered
The registered office is in Nottingham (NG4), in the Gedling local authority area, East Midlands. Show NG4 3HQ on a map.
Other trade companies in NG4
- Apex Air Conditioning Nottingham LtdPlumbers and heating engineers
- Village Building LtdSpecialist contractors
- B A Power Installations LtdElectricians
- Plasterbility LtdPlasterers
- SHW Electrical LtdElectricians
- R&L Construction and Building LtdBuilders
- Eastmidlandsev & Air Conditioning LtdElectricians
- Ama Cleaning Services LtdCleaning companies
Shared registered office
26 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Alc 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 29 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Aug 2027 to 29 Sep 2027 | £150 |
| 1 to 3 months late | 30 Sep 2027 to 29 Nov 2027 | £375 |
| 3 to 6 months late | 30 Nov 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Nov 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 29 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Nov 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
- 05996253
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 November 2006 (19 years ago)
- Registered office
- 19-21 Main Road, Gedling, Nottingham, NG4 3HQ
- Nature of business
- Installation of industrial machinery and equipment (SIC 33200)
- Year end
- 29 November (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 29 November 2025
- Last confirmation statement
- 13 November 2025
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Nottingham
Other active machinery repair and installation companies registered in Nottingham.
- Alfx Ltd2015
- Amber Technical Limited2002
- Amico Electrical Contracting Limited2025
- Amptron Electrical Services Limited2006
- Andy Taylor Gas Services Ltd2012
- Aph Mechanical Services Ltd2014
- Applied Synergy Ltd2019
- Archers of Colwick Limited1998
All machinery repair and installation companies in Nottingham · All trades in Nottingham · Machinery repair and installation across the UK
Frequently asked questions
When are Alc Security Systems Limited's accounts due?
Alc Security Systems Limited's next accounts are due at Companies House by 29 August 2027 (in 321 days), covering the period to 29 November 2026.
When is Alc Security Systems Limited's CT600 due?
The CT600 for the period to 29 November 2026 is due at HMRC by 29 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 August 2027.
Is Alc Security Systems Limited still trading?
Alc 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 Alc Security Systems Limited do?
Alc Security Systems Limited is registered under Installation of industrial machinery and equipment (SIC 33200).
How old is Alc Security Systems Limited?
Alc Security Systems Limited was incorporated on 13 November 2006, 19 years ago.
What is the penalty if Alc 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 Alc 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.