- Companies
- Machinery repair and installation
- Durham
- Fin-Diemme UK Ltd
Fin-Diemme UK Ltd
- Company number
- 12402138
- Incorporated
- 14 Jan 20206 years trading
- Registered office
- Portland House, Belmont Business Park, Durham, DH1 1TW
- Nature of business
- Repair of machinery; Repair of electrical equipment; Installation of industrial machinery and equipment
Fin-Diemme UK Ltd is a 6-year-old private limited company registered in Durham, company number 12402138, one of 39 machinery repair and installation companies in Durham. 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 up £39K (+186%) on the year before, to £61K.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £88K against £29K owed within a year: 3.0 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £61K | £88K | £88K | £29K | 2 |
| 31 Jan 2024 | £21K | £20K | £23K | £1,717 | 2 |
| 31 Jan 2023 | £28K | £57K | £57K | £29K | 2 |
| 31 Jan 2022 | £43K | £72K | £28K | 2 | |
| 31 Jan 2021 | £23K | £35K | £10K | 2 |
Where Fin-Diemme UK Ltd is registered
The registered office is in Durham (DH1), in the County Durham local authority area, North East. Show DH1 1TW on a map.
Other trade companies in DH1
- Drives & Patios 4 You LtdLandscapers and gardeners
- Hanser LimitedBuilders
- McCluskey Roofing North East LtdRoofers
- Phone and Laptop Repairs Ne LtdRepair services
- Tyne & Wear Commercial Cleaning LtdCleaning companies
- HZG Projects LimitedCivil engineering
- Damiora Group LtdFacilities management
- James Lawton Homes ( Whickham Farm ) LtdProperty developers
Shared registered office
36 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Fin-Diemme UK 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
- 12402138
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 January 2020 (6 years ago)
- Registered office
- Portland House, Belmont Business Park, Durham, DH1 1TW
- Nature of business
- Repair of machinery (SIC 33120)
Repair of electrical equipment (SIC 33140)
Installation of industrial machinery and equipment (SIC 33200) - Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 13 January 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 Durham
Other active machinery repair and installation companies registered in Durham.
- Foster Clark Engineering Limited1999
- Hardy Plant Services Ltd2023
- J.G. Paxton and Sons Group Limited2026
- JC CNC Maintenance Ltd2022
- Jones Truck & Trailer Services Ltd2011
- JPS Systems N.E. Limited2005
- JPT Repairs Limited2023
- KS Plant Services Ltd2024
All machinery repair and installation companies in Durham · All trades in Durham · Machinery repair and installation across the UK
Frequently asked questions
When are Fin-Diemme UK Ltd's accounts due?
Fin-Diemme UK 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 Fin-Diemme UK 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 Fin-Diemme UK Ltd still trading?
Fin-Diemme UK 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 Fin-Diemme UK Ltd do?
Fin-Diemme UK Ltd is registered under Repair of machinery (SIC 33120); Repair of electrical equipment (SIC 33140); Installation of industrial machinery and equipment (SIC 33200).
How old is Fin-Diemme UK Ltd?
Fin-Diemme UK Ltd was incorporated on 14 January 2020, 6 years ago.
What is the penalty if Fin-Diemme UK 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 Fin-Diemme UK 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.