- Companies
- Machinery repair and installation
- JMK Mechanical Services Ltd
JMK Mechanical Services Ltd
- Company number
- SC547462
- Incorporated
- 11 Oct 201610 years trading
- Registered office
- Drumachan, Muasdale, Tarbert, PA29 6XD
- Nature of business
- Repair of machinery; Repair and maintenance of other transport equipment n.e.c.
JMK Mechanical Services Ltd is a 10-year-old private limited company registered in Tarbert, company number SC547462, one of the UK's machinery repair and installation companies. 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 £870 (+0.5%) on the year before, to £160K.
- Net assets rose in 7 of 8 year-on-year comparisons on record.
- Current assets of £44K against £5,444 owed within a year: 8.0 times cover.
- 2 employees on average, up from 1 the year before.
- 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 |
|---|---|---|---|---|---|
| 31 Oct 2025 | £160K | £44K | £5,444 | 2 | |
| 31 Oct 2024 | £160K | £52K | £7,927 | 1 | |
| 31 Oct 2023 | £129K | £63K | £21K | 1 | |
| 31 Oct 2022 | £59K | £47K | £16K | 1 | |
| 31 Oct 2021 | £36K | £31K | £22K | 1 | |
| 31 Oct 2020 | £36K | £22K | £8,347 | 1 | |
| 31 Oct 2019 | £12K | £10K | £1,443 | 1 | |
| 31 Oct 2018 | £6,263 | £4,420 | £1,400 | ||
| 31 Oct 2017 | £1,152 | £4,523 | £450 |
Where JMK Mechanical Services Ltd is registered
The registered office is in Tarbert (PA29), in the Argyll and Bute local authority area, Scotland. Show PA29 6XD on a map.
Other trade companies in PA29
- Fyne Towing LtdMechanics and garages
- John Martin Joinery LtdJoiners and carpenters
- Amek Joinery LtdInstallers
- Corranbuie Contracts LtdCivil engineering
- Caledonia Drilling LimitedGroundworks and demolition
- CMK Groundworks LtdGroundworks and demolition
- CN Vehicle Services LtdMotor traders
- Grant Developments LtdBuilders
What happens if JMK Mechanical Services 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
- SC547462
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 October 2016 (10 years ago)
- Registered office
- Drumachan, Muasdale, Tarbert, PA29 6XD
- Nature of business
- Repair of machinery (SIC 33120)
Repair and maintenance of other transport equipment n.e.c. (SIC 33170) - Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 10 October 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
Other active machinery repair and installation companies.
Frequently asked questions
When are JMK Mechanical Services Ltd's accounts due?
JMK Mechanical Services 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 JMK Mechanical Services 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 JMK Mechanical Services Ltd still trading?
JMK Mechanical Services 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 JMK Mechanical Services Ltd do?
JMK Mechanical Services Ltd is registered under Repair of machinery (SIC 33120); Repair and maintenance of other transport equipment n.e.c. (SIC 33170).
How old is JMK Mechanical Services Ltd?
JMK Mechanical Services Ltd was incorporated on 11 October 2016, 10 years ago.
What is the penalty if JMK Mechanical Services 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 JMK Mechanical Services 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.