- Companies
- Electricians
- Caernarfon
- M Williams Electrical Limited
M Williams Electrical Limited
- Company number
- 09325830
- Incorporated
- 25 Nov 201411 years trading
- Registered office
- 1 Tan Y Bryn, Bethel, Caernarfon, LL55 1UR
- Nature of business
- Electrical installation
M Williams Electrical Limited is a 11-year-old private limited company registered in Caernarfon, company number 09325830, one of 10 electrical contractors in Caernarfon. Its next accounts are due at Companies House on 20 January 2027, and the CT600 for the period to 20 April 2026 is due at HMRC on 20 April 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 £6,631 (-86.1%) on the year before, to £1,069.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 20 Apr 2025 | £1,069 | £11K | 0 | ||
| 20 Apr 2024 | £7,700 | £7,835 | 0 | ||
| 20 Apr 2023 | £3,551 | £31K | 0 | ||
| 20 Apr 2022 | -£6,045 | £33K | 0 | ||
| 20 Apr 2021 | -£2,342 | £33K | 0 | ||
| 20 Apr 2020 | -£9,529 | £19K | 0 | ||
| 20 Apr 2019 | -£1,303 | £8,668 | |||
| 20 Apr 2018 | £1,968 | £11K | |||
| 30 Nov 2016 | £94 | £11K | £12K | £12K | |
| 30 Nov 2015 | £95 | £3,697 | £8,193 | £8,098 |
Who runs and owns M Williams Electrical Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| M*** W*** | Director | Nov 2014 |
Person with significant control
Where M Williams Electrical Limited is registered
The registered office is in Caernarfon (LL55), in the Gwynedd local authority area, Wales. Show LL55 1UR on a map.
Other trade companies in LL55
- Gic Construction & Groundworks LtdInstallers
- Caton Site Welding LtdMachinery repair and installation
- Celtic Heritage Stonemasonry LimitedCivil engineering
- Celtic Heritage Construction LimitedBuilders
- 31 High ST LimitedProperty developers
- Robertson’S Property Services LtdSpecialist contractors
- Tirion Solutions LtdElectricians
- Melltd LtdProperty developers
What happens if M Williams Electrical 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 20 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Jan 2027 to 20 Feb 2027 | £150 |
| 1 to 3 months late | 21 Feb 2027 to 20 Apr 2027 | £375 |
| 3 to 6 months late | 21 Apr 2027 to 20 Jul 2027 | £750 |
| More than 6 months late | From 21 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 21 Apr 2027 | £200 |
| 3 months late | 20 Jul 2027 | another £200 |
| 6 months late | 20 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 20 Apr 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
- 09325830
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 November 2014 (11 years ago)
- Registered office
- 1 Tan Y Bryn, Bethel, Caernarfon, LL55 1UR
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 20 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 20 April 2025
- Last confirmation statement
- 25 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 Caernarfon
Other active electrical contractors registered in Caernarfon.
- Owen Electrical Contractors GC Limited2017
- Pen Solar Cyf2023
- Snowdonia Refrigeration and Air Conditioning Ltd2013
- Tirion Solutions Ltd2026
- Bennel Electrical Ltd2026
- Caillan Harris Ltd2023
- Continuity Electrical Contractors Ltd2016
- G Parry Electrical Services Ltd2014
All electrical contractors in Caernarfon · All trades in Caernarfon · Electricians across the UK
Frequently asked questions
When are M Williams Electrical Limited's accounts due?
M Williams Electrical Limited's next accounts are due at Companies House by 20 January 2027 (in 100 days), covering the period to 20 April 2026.
When is M Williams Electrical Limited's CT600 due?
The CT600 for the period to 20 April 2026 is due at HMRC by 20 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 21 January 2027.
Is M Williams Electrical Limited still trading?
M Williams Electrical 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 M Williams Electrical Limited do?
M Williams Electrical Limited is registered under Electrical installation (SIC 43210).
How old is M Williams Electrical Limited?
M Williams Electrical Limited was incorporated on 25 November 2014, 11 years ago.
Who runs M Williams Electrical Limited?
M Williams Electrical Limited has 1 active director, the longest-serving appointed in Nov 2014. Their names and service addresses are on the Companies House register.
Who owns M Williams Electrical Limited?
One person or company has significant control of M Williams Electrical Limited: an individual (owns 75% or more of the shares).
What is the penalty if M Williams Electrical 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 M Williams Electrical 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.