- Companies
- Machinery repair and installation
- Hamilton
- Isocon (Engineering) Limited
Isocon (Engineering) Limited
- Company number
- SC051359
- Incorporated
- 7 Sep 197254 years trading
- Registered office
- 25 Tahoe Grove, Hamilton, ML3 7ZQ
- Nature of business
- Repair and maintenance of other transport equipment n.e.c.
Isocon (Engineering) Limited is a 54-year-old private limited company registered in Hamilton, company number SC051359, one of 30 machinery repair and installation companies in Hamilton. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £24K (+5.8%) on the year before, to £434K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £242K against £162K owed within a year: 1.5 times cover.
- -11 employees 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £434K | -£30K | £242K | £162K | -11 |
| 31 Mar 2024 | £410K | £23K | £387K | £529K | -11 |
| 31 Mar 2023 | £339K | £67K | £403K | £112K | 11 |
| 31 Mar 2022 | £573K | £73K | £636K | £97K | 11 |
| 31 Mar 2021 | £478K | £213K | £619K | £132K | 11 |
| 31 Mar 2020 | £404K | £553K | £156K | 10 | |
| 31 Mar 2019 | £326K | £508K | £176K | ||
| 31 Mar 2018 | £374K | £542K | £133K | ||
| 31 Mar 2017 | £355K | £498K | £131K | ||
| 31 Mar 2016 | £558K | £27K | £509K | £137K |
Where Isocon (Engineering) Limited is registered
The registered office is in Hamilton (ML3), in the South Lanarkshire local authority area, Scotland. Show ML3 7ZQ on a map.
Other trade companies in ML3
- Horizon Joinery LtdJoiners and carpenters
- Grime Fighters Banbury LtdCleaning companies
- SM Energy Services LtdMachinery repair and installation
- Exceptional Distribution Services LtdRepair services
- Damp Solve LtdInstallers
- Ffcontracts LtdElectricians
- Rammz Paving LtdSpecialist contractors
- DLT Thistle Property Group LtdProperty developers
What happens if Isocon (Engineering) 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- SC051359
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 September 1972 (54 years ago)
- Registered office
- 25 Tahoe Grove, Hamilton, ML3 7ZQ
- Nature of business
- Repair and maintenance of other transport equipment n.e.c. (SIC 33170)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 30 October 2025
- Charges (mortgages)
- 1 outstanding of 3 registered
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 Hamilton
Other active machinery repair and installation companies registered in Hamilton.
- KP Mobile Welding Services Limited2023
- LS Weighing Limited2017
- McQuade Group Ltd2026
- Moclocks Limited2015
- P Boland Services Ltd2025
- R&A Fire & Security Ltd2021
- RBS Electrical Engineering Limited2011
- RD Electrical 25 Ltd2025
All machinery repair and installation companies in Hamilton · All trades in Hamilton · Machinery repair and installation across the UK
Frequently asked questions
When are Isocon (Engineering) Limited's accounts due?
Isocon (Engineering) Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Isocon (Engineering) Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Isocon (Engineering) Limited still trading?
Isocon (Engineering) 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 Isocon (Engineering) Limited do?
Isocon (Engineering) Limited is registered under Repair and maintenance of other transport equipment n.e.c. (SIC 33170).
How old is Isocon (Engineering) Limited?
Isocon (Engineering) Limited was incorporated on 7 September 1972, 54 years ago.
What is the penalty if Isocon (Engineering) 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 Isocon (Engineering) 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.