- Companies
- Machinery repair and installation
- Edinburgh
- Alcatraz Locksmiths Ltd
Alcatraz Locksmiths Ltd
- Company number
- SC539228
- Incorporated
- 30 Jun 201610 years trading
- Registered office
- 37 Durar Drive, Edinburgh, EH4 7HW
- Nature of business
- Repair of other equipment
Alcatraz Locksmiths Ltd is a 10-year-old private limited company registered in Edinburgh, company number SC539228, one of 108 machinery repair and installation companies in Edinburgh. 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 £229 (+70.9%) on the year before, to £552.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £6,071 against £5,607 owed within a year: 1.1 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £552 | £3,039 | £6,071 | £5,607 | 2 |
| 30 Jun 2024 | £323 | £5,173 | £6,551 | £6,402 | 2 |
| 30 Jun 2023 | £244 | £5,732 | £6,032 | £5,788 | 2 |
| 30 Jun 2022 | £5,486 | £5,359 | £9,633 | £6,383 | 2 |
| 30 Jun 2021 | £8,027 | £11K | £12K | £6,565 | 2 |
| 30 Jun 2020 | £9,333 | £15K | £16K | £8,723 | 2 |
| 30 Jun 2019 | £7,060 | £14K | £15K | £9,359 | 2 |
| 30 Jun 2018 | £7,426 | £12K | £13K | £6,107 | 2 |
| 30 Jun 2017 | £3,969 | £11K | £11K | £7,221 | 2 |
Where Alcatraz Locksmiths Ltd is registered
The registered office is in Edinburgh (EH4), in the City of Edinburgh local authority area, Scotland. Show EH4 7HW on a map.
Other trade companies in EH4
- Edinburgh Heritage Housekeeping LtdCleaning companies
- Quickturn Cleaning LtdCleaning companies
- Mel’S Magic Clean LtdCleaning companies
- MWJ Services ( Scotland ) LtdElectricians
- NFD Electrical LtdElectricians
- Alder Guttering Services LimitedSpecialist contractors
- Cross Electrical Services LtdElectricians
- Smag Enterprise LimitedMotor traders
What happens if Alcatraz Locksmiths 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 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
- SC539228
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 June 2016 (10 years ago)
- Registered office
- 37 Durar Drive, Edinburgh, EH4 7HW
- Nature of business
- Repair of other equipment (SIC 33190)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 23 March 2026
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 Edinburgh
Other active machinery repair and installation companies registered in Edinburgh.
- Ale Engineering Repairs Ltd2024
- All Electrical Edinburgh Limited2021
- Ansari Electronics Ltd2020
- Apache Automotive Limited2021
- Arctic Fox Refrigeration Limited2005
- Armstrong Mechanical Services Ltd.2010
- Aspire Fox Ltd2024
- Avw Autocentre Ltd2009
All machinery repair and installation companies in Edinburgh · All trades in Edinburgh · Machinery repair and installation across the UK
Frequently asked questions
When are Alcatraz Locksmiths Ltd's accounts due?
Alcatraz Locksmiths Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Alcatraz Locksmiths Ltd'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 Alcatraz Locksmiths Ltd still trading?
Alcatraz Locksmiths 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 Alcatraz Locksmiths Ltd do?
Alcatraz Locksmiths Ltd is registered under Repair of other equipment (SIC 33190).
How old is Alcatraz Locksmiths Ltd?
Alcatraz Locksmiths Ltd was incorporated on 30 June 2016, 10 years ago.
What is the penalty if Alcatraz Locksmiths 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 Alcatraz Locksmiths 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.