- Companies
- Electricians
- Sudbury
- GJK Electrical Services Limited
GJK Electrical Services Limited
- Company number
- 10860368
- Incorporated
- 11 Jul 20179 years trading
- Registered office
- Belmont Flax Lane, Glemsford, Sudbury, CO10 7RS
- Nature of business
- Electrical installation
GJK Electrical Services Limited is a 9-year-old private limited company registered in Sudbury, company number 10860368, one of 29 electrical contractors in Sudbury. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 up £1,723 (+26.6%) on the year before, to £8,205.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £13K against £5,104 owed within a year: 2.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £8,205 | £4,769 | £13K | £5,104 | 1 |
| 31 Jul 2024 | £6,482 | £7,940 | £1,098 | 1 | |
| 31 Jul 2023 | £18K | £27K | £8,118 | 1 | |
| 31 Jul 2022 | £14K | £20K | £5,547 | 1 | |
| 31 Jul 2021 | £5,287 | £14K | £8,513 | 1 | |
| 31 Jul 2020 | £9,743 | £6,304 | £18K | £8,519 | 1 |
| 31 Jul 2019 | £11K | £6,158 | £16K | £5,083 | 1 |
| 31 Jul 2018 | £6,424 | £3,949 | £11K | £4,336 | 1 |
Where GJK Electrical Services Limited is registered
The registered office is in Sudbury (CO10), in the Babergh local authority area, East of England. Show CO10 7RS on a map.
Other trade companies in CO10
- Regrid LtdMotor traders
- Voltage Link LimitedCivil engineering
- The 1 Percent Team LtdProperty developers
- Green Star Heating Services LtdPlumbers and heating engineers
- Ca Scaffolding Services LtdScaffolders
- Delphi Developments LtdProperty developers
- Complete Solutions Group LtdFacilities management
- Finada Corp LimitedBuilders
What happens if GJK Electrical 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 10860368
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 July 2017 (9 years ago)
- Registered office
- Belmont Flax Lane, Glemsford, Sudbury, CO10 7RS
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 10 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 Sudbury
Other active electrical contractors registered in Sudbury.
- Greg Dykes Ltd2013
- GW Management&Consultationltd Limited2025
- JB Energy Services Ltd2023
- JRB Electrical (Suffolk) Ltd2025
- Ken Grime & Son Limited2002
- Made Electrical Ltd2023
- Mecelex Limited2025
- Mercury Building Services Limited2008
All electrical contractors in Sudbury · All trades in Sudbury · Electricians across the UK
Frequently asked questions
When are GJK Electrical Services Limited's accounts due?
GJK Electrical Services Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is GJK Electrical Services Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is GJK Electrical Services Limited still trading?
GJK Electrical Services 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 GJK Electrical Services Limited do?
GJK Electrical Services Limited is registered under Electrical installation (SIC 43210).
How old is GJK Electrical Services Limited?
GJK Electrical Services Limited was incorporated on 11 July 2017, 9 years ago.
What is the penalty if GJK Electrical 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 GJK Electrical Services 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.