- Companies
- Machinery repair and installation
- Dumbarton
- Ally Mac Mechanical Services Ltd
Ally Mac Mechanical Services Ltd
- Company number
- SC480230
- Incorporated
- 17 Jun 201412 years trading
- Registered office
- Unit 12 Sandpoint Marina, Woodyard Road, Dumbarton, G82 4BG
- Nature of business
- Repair of machinery
Ally Mac Mechanical Services Ltd is a 12-year-old private limited company registered in Dumbarton, company number SC480230, one of 10 machinery repair and installation companies in Dumbarton. Companies House shows its accounts as overdue: they were due on 30 June 2026.
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 £2,630 (+18.1%) on the year before, to £17K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £33K against £21K owed within a year: 1.6 times cover.
- 1 employee on average, down from 2 the year before.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2024 | £17K | £33K | £21K | 1 | |
| 30 Jun 2023 | £15K | £31K | £22K | 2 | |
| 30 Jun 2022 | £551 | £23K | £15K | 2 | |
| 30 Jun 2021 | £15K | £28K | £5,092 | 3 | |
| 30 Jun 2020 | £23K | £21K | £9,496 | 3 | |
| 30 Jun 2019 | £1,792 | £25K | £26K | 2 | |
| 30 Jun 2018 | -£3,445 | £30K | £35K | ||
| 30 Jun 2017 | -£2,530 | £25K | £32K | ||
| 30 Jun 2016 | £298 | £5,023 | £19K | £24K | |
| 30 Jun 2015 | £549 | £2,663 | £4,454 | £5,480 |
Where Ally Mac Mechanical Services Ltd is registered
The registered office is in Dumbarton (G82), in the West Dunbartonshire local authority area, Scotland. Show G82 4BG on a map.
Other trade companies in G82
- Mintedcs LtdRoofers
- RT Electrical Services Scotland LtdElectricians
- Central Heating Scotland LtdPlumbers and heating engineers
- Carberry R.H LtdMachinery repair and installation
- RGM Window Cleaning LimitedCleaning companies
- Maxwell's Air Conditioning LtdPlumbers and heating engineers
- Plasterforce LtdPlasterers
- NCL Engineering LtdCivil engineering
What happens if Ally Mac Mechanical Services Ltd files late
If the accounts reach Companies House today, the late filing penalty is £750 (£1,500 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2026 to 31 Jul 2026 | £150 |
| 1 to 3 months late | 1 Aug 2026 to 30 Sep 2026 | £375 |
| 3 to 6 months late | 1 Oct 2026 to 31 Dec 2026 | £750 |
| More than 6 months late | From 1 Jan 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2026 | £200 |
| 3 months late | 30 Dec 2026 | another £200 |
| 6 months late | 30 Mar 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2027 | 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
- SC480230
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 June 2014 (12 years ago)
- Registered office
- Unit 12 Sandpoint Marina, Woodyard Road, Dumbarton, G82 4BG
- Nature of business
- Repair of machinery (SIC 33120)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2024
- Last confirmation statement
- 17 June 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 Dumbarton
Other active machinery repair and installation companies registered in Dumbarton.
- Carberry R.H Ltd2026
- Elevesc Ltd2025
- Generator Technician Services Ltd2025
- Harper Generator Services Ltd2013
- HBR Refurb Limited2022
- Joseph Harkom & Son Gunmakers Limited2025
- Scotechnics Limited1994
- Wallace Power Services Ltd2011
All machinery repair and installation companies in Dumbarton · All trades in Dumbarton · Machinery repair and installation across the UK
Frequently asked questions
When are Ally Mac Mechanical Services Ltd's accounts due?
Ally Mac Mechanical Services Ltd's accounts were due at Companies House on 30 June 2026 and the register shows them as overdue.
When is Ally Mac Mechanical Services Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 June 2025, due by 30 June 2026, and one for the period to 30 September 2025, due by 30 September 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ally Mac Mechanical Services Ltd still trading?
Ally Mac Mechanical Services 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 Ally Mac Mechanical Services Ltd do?
Ally Mac Mechanical Services Ltd is registered under Repair of machinery (SIC 33120).
How old is Ally Mac Mechanical Services Ltd?
Ally Mac Mechanical Services Ltd was incorporated on 17 June 2014, 12 years ago.
What is the penalty if Ally Mac 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 Ally Mac Mechanical Services 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.