- Companies
- Electricians
- Carluke
- Ag Electrical & Security Ltd
Ag Electrical & Security Ltd
- Company number
- SC351370
- Incorporated
- 17 Nov 200817 years trading
- Registered office
- Unit 6 Crathie Court, Castlehill Industrial Estate, Carluke, ML8 5UF
- Nature of business
- Electrical installation
Ag Electrical & Security Ltd is a 17-year-old private limited company registered in Carluke, company number SC351370, one of 8 electrical contractors in Carluke. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £8,171 (+12.1%) on the year before, to £76K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £96K against £45K owed within a year: 2.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Oct 2025 | £76K | £27K | £96K | £45K | 0 |
| 31 Oct 2024 | £68K | £95K | £48K | 5 | |
| 31 Oct 2023 | £62K | £79K | £40K | 4 | |
| 31 Oct 2022 | £69K | £90K | £38K | 4 | |
| 31 Oct 2021 | £57K | £131K | £41K | 4 | |
| 31 Oct 2020 | £47K | £82K | £43K | 5 | |
| 30 Nov 2019 | £17K | £71K | £55K | 8 | |
| 30 Nov 2018 | £20K | £54K | £36K | ||
| 30 Nov 2017 | £11K | £55K | £46K | ||
| 30 Nov 2016 | £8,452 | £41K |
Where Ag Electrical & Security Ltd is registered
The registered office is in Carluke (ML8), in the South Lanarkshire local authority area, Scotland. Show ML8 5UF on a map.
Other trade companies in ML8
- Browns Vehicle Repair & MOT Centre LtdMechanics and garages
- Glasgow Dyson Centre LimitedMachinery repair and installation
- LBT Industrial LtdScaffolders
- D L Plumbing Services LtdPlumbers and heating engineers
- S Gallagher Developments LtdBuilders
- Aitken Utilities LtdCivil engineering
- CRJ Joinery LtdJoiners and carpenters
- Belhaven Autos LtdMotor traders
What happens if Ag Electrical & 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- SC351370
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 November 2008 (17 years ago)
- Registered office
- Unit 6 Crathie Court, Castlehill Industrial Estate, Carluke, ML8 5UF
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 17 November 2025
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 Carluke
Other active electrical contractors registered in Carluke.
- Bryce Electrical Services Ltd2014
- CJ Electrical & Solar Contractors Ltd2024
- Corr Engineering Ltd2024
- Davidson Lindsay Electrical Services Limited2010
- Hume Electrical Services Ltd2009
- Jamie Gracie Electrical Ltd2020
- Residential and Commercial Elecrical Services Ltd2024
All electrical contractors in Carluke · All trades in Carluke · Electricians across the UK
Frequently asked questions
When are Ag Electrical & Security Ltd's accounts due?
Ag Electrical & Security Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Ag Electrical & Security Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Ag Electrical & Security Ltd still trading?
Ag Electrical & 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 Ag Electrical & Security Ltd do?
Ag Electrical & Security Ltd is registered under Electrical installation (SIC 43210).
How old is Ag Electrical & Security Ltd?
Ag Electrical & Security Ltd was incorporated on 17 November 2008, 17 years ago.
What is the penalty if Ag Electrical & 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 Ag Electrical & 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.