- Companies
- Machinery repair and installation
- London
- Cairnsy.Co Ltd
Cairnsy.Co Ltd
- Company number
- 14611460
- Incorporated
- 23 Jan 20233 years trading
- Registered office
- 22 Green Walk, London, SE1 4TU
- Nature of business
- Repair of electrical equipment; Electrical installation
Cairnsy.Co Ltd is a 3-year-old private limited company registered in London, company number 14611460, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £13K on the year before, to -£14K.
- Current assets of £4,073 against £23K owed within a year: 0.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | -£14K | £3 | £4,073 | £23K | 0 |
| 31 Jan 2024 | -£735 | £735 | 0 |
Where Cairnsy.Co Ltd is registered
The registered office is in London (SE1), in the Southwark local authority area, London. Show SE1 4TU on a map.
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What happens if Cairnsy.Co 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 14611460
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 January 2023 (3 years ago)
- Registered office
- 22 Green Walk, London, SE1 4TU
- Nature of business
- Repair of electrical equipment (SIC 33140)
Electrical installation (SIC 43210) - Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 26 September 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 London
Other active machinery repair and installation companies registered in London.
- Cako Electric Ltd2026
- Cal Electrical Solutions Limited2019
- Can Electronics Ltd2021
- Capasso Aeronautic Ltd2025
- Captpower Services Ltd2026
- Car Iq Diagnostics Ltd2026
- Carbon Composites Ltd2025
- Carrera Corporation Limited1998
All machinery repair and installation companies in London · All trades in London · Machinery repair and installation across the UK
Frequently asked questions
When are Cairnsy.Co Ltd's accounts due?
Cairnsy.Co Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Cairnsy.Co Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Cairnsy.Co Ltd still trading?
Cairnsy.Co Ltd is listed as active on the Companies House register (checked 13 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 Cairnsy.Co Ltd do?
Cairnsy.Co Ltd is registered under Repair of electrical equipment (SIC 33140); Electrical installation (SIC 43210).
How old is Cairnsy.Co Ltd?
Cairnsy.Co Ltd was incorporated on 23 January 2023, 3 years ago.
What is the penalty if Cairnsy.Co 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 Cairnsy.Co Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.