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- Gmi Electrical Limited
Company profile · Electricians
Gmi Electrical Limited
Gmi Electrical Limited is a 5-year-old private limited company registered in Treharris, company number 13534072, one of 6 electrical contractors in Treharris. Its next accounts are due at Companies House on 29 November 2026, and its first CT600 is due at HMRC on 30 November 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Gmi Electrical Limited 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.
- 4 employees on average during the year.
- Balance sheets on record for 3 years, 2022 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2024 | 4 | ||||
| 30 Nov 2023 | £208K | £74K | £402K | £284K | 4 |
| 30 Nov 2022 | £49K | £226K | £212K | 2 |
Public contracts won
Gmi Electrical Limited has 6 public sector contract awards on record; the ones with their own published value total £240K (2025). Source: Contracts Finder and Find a Tender award notices. For 1 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 |
|---|---|---|---|
| Rhondda Cynon Taf CBC | Penderyn Primary - LED Lighting replacement scheme | £52K | 22 Aug 2025 |
| Rhondda Cynon Taf CBC | Mountain Ash Comprehensive - LED Lighting replacement scheme | £44K | 22 Aug 2025 |
| Rhondda Cynon Taf CBC | Installation of Photovoltaic System at St John Baptist School | £46K | 24 Jul 2025 |
| Rhondda Cynon Taf CBC | Ferndale Community School Solar PV | £44K | 18 Jul 2025 |
| Rhondda Cynon Taf CBC | Installation of Photovoltaic System at Mountain Ash Comprehensive | £53K | 14 Jul 2025 |
| LHC Procurement Group for the Welsh Procurement Alliance (WPA) | Retrofit and Decarbonisation Framework | Ceiling, not shown | 18 Feb 2025 |
Where Gmi Electrical Limited is registered
The registered office is in Treharris (CF46), in the Caerphilly local authority area, Wales. Show CF46 6PQ on a map.
Other trade companies in CF46
- Dragon Water Services LtdPlumbers and heating engineers
- All Cleaned Up FM LtdCleaning companies
- Stadeyn Civils & Groundworks LtdCivil engineering
- JDP Plumbing & Property Maintenance LtdBuilders
- Alpha Exterior Solutions LtdCleaning companies
- Foreman's Tyres LimitedMotor traders
- Fox Electrical and Building Maintenance LtdBuilders
- L M Hydraulic Services LimitedMachinery repair and installation
What happens if Gmi 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 29 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Nov 2026 to 29 Dec 2026 | £150 |
| 1 to 3 months late | 30 Dec 2026 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 29 May 2027 | £750 |
| More than 6 months late | From 30 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 13534072
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 July 2021 (5 years ago)
- Registered office
- Unit 1B - Whitebeam Court Ty Du Rhodfa Ty Du, Nelson, Treharris, CF46 6PQ
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 29 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 26 July 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 Treharris
Other active electrical contractors registered in Treharris.
- JT Electrical Services (SW) Ltd2025
- Andrew Walker Electrical Solutions Ltd2021
- BCB Renewables Ltd2024
- Evans Electrical SW Ltd2025
- Fusion Electrical & Building Services Engineering Ltd2013
All electrical contractors in Treharris · All trades in Treharris · Electricians across the UK
Frequently asked questions
When are Gmi Electrical Limited's accounts due?
Gmi Electrical Limited's next accounts are due at Companies House by 29 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Gmi Electrical Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 November 2025, due by 30 November 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Gmi Electrical Limited still trading?
Gmi Electrical Limited is listed as active on the Companies House register (checked 12 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 Gmi Electrical Limited do?
Gmi Electrical Limited is registered under Electrical installation (SIC 43210).
How old is Gmi Electrical Limited?
Gmi Electrical Limited was incorporated on 27 July 2021, 5 years ago.
Has Gmi Electrical Limited won public sector contracts?
Yes. Gmi Electrical Limited has 6 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £240K), most recently from Rhondda Cynon Taf CBC.
What is the penalty if Gmi 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 Gmi Electrical Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.