- Companies
- Machinery repair and installation
- Dumbarton
- Harper Generator Services Ltd
Harper Generator Services Ltd
- Company number
- SC460239
- Incorporated
- 27 Sep 201313 years trading
- Registered office
- 19 Broomfauld Gardens, Dumbarton, G82 2LB
- Nature of business
- Repair of machinery; Wholesale of other machinery and equipment
Harper Generator Services Ltd is a 13-year-old private limited company registered in Dumbarton, company number SC460239, one of 10 machinery repair and installation companies in Dumbarton. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £11K (+32.9%) on the year before, to £45K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £153K against £133K owed within a year: 1.1 times cover.
- 2 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £45K | £153K | £133K | 2 | |
| 30 Sep 2024 | £34K | £120K | £95K | 2 | |
| 30 Sep 2023 | £42K | £131K | £94K | 2 | |
| 30 Sep 2022 | £38K | £115K | £84K | 2 | |
| 30 Sep 2021 | £30K | £143K | £131K | 2 | |
| 30 Sep 2020 | £68K | £162K | £105K | 2 | |
| 30 Sep 2019 | £69K | £110K | £115K | 2 | |
| 30 Sep 2018 | £73K | £127K | £147K | ||
| 30 Sep 2017 | £90K | £149K | £170K | ||
| 30 Sep 2016 | £74K | £13K | £189K | £182K |
Where Harper Generator Services Ltd is registered
The registered office is in Dumbarton (G82), in the West Dunbartonshire local authority area, Scotland. Show G82 2LB 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 Harper Generator 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- SC460239
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 September 2013 (13 years ago)
- Registered office
- 19 Broomfauld Gardens, Dumbarton, G82 2LB
- Nature of business
- Repair of machinery (SIC 33120)
Wholesale of other machinery and equipment (SIC 46690) - Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 9 October 2025
- Charges (mortgages)
- 1 outstanding of 1 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 Dumbarton
Other active machinery repair and installation companies registered in Dumbarton.
- HBR Refurb Limited2022
- Joseph Harkom & Son Gunmakers Limited2025
- Scotechnics Limited1994
- Wallace Power Services Ltd2011
- 110 (UK) Limited1993
- Ally Mac Mechanical Services Ltd2014
- Carberry R.H Ltd2026
- Elevesc Ltd2025
All machinery repair and installation companies in Dumbarton · All trades in Dumbarton · Machinery repair and installation across the UK
Frequently asked questions
When are Harper Generator Services Ltd's accounts due?
Harper Generator Services Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Harper Generator Services Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Harper Generator Services Ltd still trading?
Harper Generator 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 Harper Generator Services Ltd do?
Harper Generator Services Ltd is registered under Repair of machinery (SIC 33120); Wholesale of other machinery and equipment (SIC 46690).
How old is Harper Generator Services Ltd?
Harper Generator Services Ltd was incorporated on 27 September 2013, 13 years ago.
What is the penalty if Harper Generator 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 Harper Generator 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.