Company profile · Machinery repair and installation
Gwyn E Cyf
Gwyn E Cyf is a 11-year-old private limited company registered in Porthmadog, company number 09288921, one of 8 machinery repair and installation companies in Porthmadog. 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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Financial snapshot, 2025
From the balance sheet at 31 October 2025, as filed at Companies House.
Gwyn E Cyf over the years
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 £2,143 on the year before, to £2,075.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £21K against £34K owed within a year: 0.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 | £2,075 | £1,520 | £21K | £34K | 0 |
| 31 Oct 2024 | -£68 | £454 | £11K | £26K | 0 |
| 31 Oct 2023 | £329 | £305 | £4,761 | £20K | 0 |
| 31 Oct 2022 | £1,431 | £100 | £12K | £26K | 0 |
| 31 Oct 2021 | £763 | £153 | £7,109 | £22K | 0 |
| 31 Oct 2020 | £602 | £3,470 | £3,470 | £19K | 0 |
| 31 Oct 2019 | £2,938 | £124 | £4,166 | £18K | 0 |
| 31 Oct 2018 | £173 | £23 | £5,890 | £23K | |
| 31 Oct 2017 | £25 | £322 | £8,617 | £27K | |
| 31 Oct 2016 | £5,915 | £2,814 | £5,703 | £19K |
Who runs and owns Gwyn E Cyf
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| G*** O*** | Director | Oct 2014 |
Person with significant control
Where Gwyn E 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
Also registered at this address
15 other companies use the same registered office as Gwyn E Cyf.
- A E Motors LtdMechanics and garages
- A. J Brown Electrical Contracting LtdElectricians
- Artro Property Services LtdBuilders
- Brian Bown CyfLandscapers and gardeners
- Chris Waite Site Engineering LtdCivil engineering
- Contractio G I Owen Contracting CyfSpecialist contractors
- DB & E Williams LimitedPlumbers and heating engineers
- Llwyni'r ŴYn CyfSpecialist contractors
- M & R Scaffolding LtdGroundworks and demolition
- S & B Roberts LtdMechanics and garages
- S E Metcalfe A'i Gwmni CyfSpecialist contractors
- T P Redman LtdSpecialist contractors
- Tegfan Garage LtdMechanics and garages
- Tir Construction LimitedSpecialist contractors
- Tony Rowlands Electrical LtdElectricians
What happens if Gwyn E 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 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
- 09288921
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 October 2014 (11 years ago)
- Registered office
- Adeilad ST. Davids Building, Stryd Lombard Street, Porthmadog, Gwynedd, LL49 9AP
- Nature of business
- Repair and maintenance of other transport equipment n.e.c. (SIC 33170)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 29 July 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 Porthmadog
Other active machinery repair and installation companies registered in Porthmadog.
- Gwynedd Cash Registers Ltd2006
- Hamdden Caravans Limited2017
- Peirianwaith Eifionydd Engineering Ltd2018
- Ron Hughes HPS Limited2016
- Brython Tecwyn Cyf2011
- Chiara Limited1999
- Cu Power Ltd2025
All machinery repair and installation companies in Porthmadog · All trades in Porthmadog · Machinery repair and installation across the UK
Frequently asked questions
When are Gwyn E Cyf's accounts due?
Gwyn E Cyf's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Gwyn E Cyf'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 Gwyn E Cyf still trading?
Gwyn E 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 Gwyn E Cyf do?
Gwyn E Cyf is registered under Repair and maintenance of other transport equipment n.e.c. (SIC 33170).
How old is Gwyn E Cyf?
Gwyn E Cyf was incorporated on 30 October 2014, 11 years ago.
Who runs Gwyn E Cyf?
Gwyn E Cyf has 1 active director, the longest-serving appointed in Oct 2014. Their names and service addresses are on the Companies House register.
Who owns Gwyn E Cyf?
One person or company has significant control of Gwyn E Cyf: an individual (owns 75% or more of the shares).
What is the penalty if Gwyn E 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 Gwyn E 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.