- Companies
- Electricians
- Dumbarton
- DCF Joiners & Building Services Limited
DCF Joiners & Building Services Limited
- Company number
- SC109583
- Incorporated
- 1 Mar 198838 years trading
- Registered office
- 7 Alder Road, Broadmeadow Industrial Estate, Dumbarton, G82 2EL
- Nature of business
- Electrical installation; Other construction installation; Joinery installation
DCF Joiners & Building Services Limited is a 38-year-old private limited company registered in Dumbarton, company number SC109583, one of 12 electrical contractors in Dumbarton. 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 down £63K (-10.6%) on the year before, to £534K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £698K against £241K owed within a year: 2.9 times cover.
- 19 employees on average, down from 21 the year before.
- 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 Oct 2025 | £534K | £392K | £698K | £241K | 19 |
| 31 Oct 2024 | £597K | £415K | £827K | £253K | 21 |
| 31 Oct 2023 | £492K | £355K | £837K | £368K | 22 |
| 31 Oct 2022 | £426K | £291K | £813K | £385K | 20 |
| 31 Oct 2021 | £370K | £156K | £733K | £357K | 19 |
| 31 Oct 2020 | £161K | £112K | £594K | £435K | 21 |
| 31 Oct 2019 | £34K | £9,644 | £432K | £407K | 20 |
| 31 Oct 2018 | £2,871 | £11K | £344K | £343K | 21 |
| 31 Oct 2017 | -£42K | £2,477 | £357K | £401K | 24 |
| 31 Oct 2016 | £127K | £55K | £459K | £335K |
Public contracts won
DCF Joiners & Building Services Limited has one public sector contract award on record (2025). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Argyll and Bute Council | Argyll and Bute General Property Maintenance Term Contract | Ceiling, not shown | 18 Nov 2025 |
Where DCF Joiners & Building Services Limited is registered
The registered office is in Dumbarton (G82), in the West Dunbartonshire local authority area, Scotland. Show G82 2EL 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 DCF Joiners & Building Services 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 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
- SC109583
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 March 1988 (38 years ago)
- Registered office
- 7 Alder Road, Broadmeadow Industrial Estate, Dumbarton, G82 2EL
- Nature of business
- Electrical installation (SIC 43210)
Other construction installation (SIC 43290)
Joinery installation (SIC 43320) - Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 17 December 2025
- Charges (mortgages)
- 2 outstanding of 2 registered
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Dumbarton
Other active electrical contractors registered in Dumbarton.
- E-Tech Electrical Scotland Ltd2020
- Optimumbms Ltd2006
- Rainey Electrical Ltd2018
- Robbex FM Limited2018
- RT Electrical Services Scotland Ltd2026
- Spark Electrical Scotland Limited2017
- W&L Electrical Services Ltd2018
- Alger Electrics and Alarms Limited1992
All electrical contractors in Dumbarton · All trades in Dumbarton · Electricians across the UK
Frequently asked questions
When are DCF Joiners & Building Services Limited's accounts due?
DCF Joiners & Building Services Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is DCF Joiners & Building Services Limited'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 DCF Joiners & Building Services Limited still trading?
DCF Joiners & Building Services 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 DCF Joiners & Building Services Limited do?
DCF Joiners & Building Services Limited is registered under Electrical installation (SIC 43210); Other construction installation (SIC 43290); Joinery installation (SIC 43320).
How old is DCF Joiners & Building Services Limited?
DCF Joiners & Building Services Limited was incorporated on 1 March 1988, 38 years ago.
Has DCF Joiners & Building Services Limited won public sector contracts?
Yes. DCF Joiners & Building Services Limited has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Argyll and Bute Council.
What is the penalty if DCF Joiners & Building Services 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 DCF Joiners & Building Services 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.