- Companies
- Electricians
- Porthmadog
- Gareth Griffiths (Trydanwr) Cyf
Gareth Griffiths (Trydanwr) Cyf
- Company number
- 04974753
- Incorporated
- 24 Nov 200322 years trading
- Registered office
- Adeilad ST David's Building, Stryd Lombard Street, Porthmadog, Gwynedd, LL49 9AP
- Nature of business
- Electrical installation
Gareth Griffiths (Trydanwr) Cyf is a 22-year-old private limited company registered in Porthmadog, company number 04974753, one of 8 electrical contractors in Porthmadog. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £107 (-0.1%) on the year before, to £88K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £96K against £18K owed within a year: 5.3 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 |
|---|---|---|---|---|---|
| 31 Dec 2025 | £88K | £77K | £96K | £18K | 2 |
| 31 Dec 2024 | £88K | £70K | £89K | £14K | 2 |
| 31 Dec 2023 | £69K | £64K | £76K | £15K | 2 |
| 31 Dec 2022 | £85K | £71K | £94K | £14K | 0 |
| 31 Dec 2021 | £84K | £82K | £93K | £15K | 1 |
| 31 Dec 2020 | £79K | £82K | £91K | £19K | 0 |
| 31 Dec 2019 | £74K | £81K | £100K | £33K | 2 |
| 31 Dec 2018 | £64K | £71K | £98K | £44K | 2 |
| 31 Dec 2017 | £34K | £51K | £80K | £50K | 2 |
| 31 Dec 2016 | £18K | £26K | £50K | £37K | 2 |
Where Gareth Griffiths (Trydanwr) Cyf is registered
The registered office is in Porthmadog (LL49), in the Gwynedd local authority area, Wales. Show LL49 9AP on a map.
Other trade companies in LL49
- D.Thomas Electrical CyfElectricians
- N Commercial LtdMotor traders
- Bricsan CyfProperty developers
- White Diamond Windows LtdGlaziers
- Porthmadog No1 Hand Car Wash LtdCleaning companies
- Dragon Drone Surveys & Inspections LimitedGroundworks and demolition
- Cu Power LtdMachinery repair and installation
- Carwyn Ap Plymio A Gwresogi CyfPlumbers and heating engineers
Shared registered office
26 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 Gareth Griffiths (Trydanwr) Cyf 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 04974753
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 November 2003 (22 years ago)
- Registered office
- Adeilad ST David's Building, Stryd Lombard Street, Porthmadog, Gwynedd, LL49 9AP
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 24 November 2025
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 Porthmadog
Other active electrical contractors registered in Porthmadog.
- North West Wales Electrical Ltd2022
- O R Electrical Limited2017
- Tony Rowlands Electrical Ltd2019
- A. J Brown Electrical Contracting Ltd2013
- Cambrian Electrical (Gwynedd) Ltd2019
- D.Thomas Electrical Cyf2026
- E H A'i Fab Ynni Adnewyddadol & Trydanol Cyf2024
All electrical contractors in Porthmadog · All trades in Porthmadog · Electricians across the UK
Frequently asked questions
When are Gareth Griffiths (Trydanwr) Cyf's accounts due?
Gareth Griffiths (Trydanwr) Cyf's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Gareth Griffiths (Trydanwr) Cyf's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Gareth Griffiths (Trydanwr) Cyf still trading?
Gareth Griffiths (Trydanwr) Cyf 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 Gareth Griffiths (Trydanwr) Cyf do?
Gareth Griffiths (Trydanwr) Cyf is registered under Electrical installation (SIC 43210).
How old is Gareth Griffiths (Trydanwr) Cyf?
Gareth Griffiths (Trydanwr) Cyf was incorporated on 24 November 2003, 22 years ago.
What is the penalty if Gareth Griffiths (Trydanwr) Cyf 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 Gareth Griffiths (Trydanwr) Cyf 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.