- Companies
- Electricians
- Rochester
- J-Mech Electrical Services Ltd
J-Mech Electrical Services Ltd
- Company number
- 12299336
- Incorporated
- 5 Nov 20196 years trading
- Registered office
- 10 Dickens Court Enterprise Court, Medway City Est, Rochester, Kent, ME2 4LY
- Nature of business
- Electrical installation
J-Mech Electrical Services Ltd is a 6-year-old private limited company registered in Rochester, company number 12299336, one of 147 electrical contractors in Rochester. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £360 (-22.8%) on the year before, to -£1,940.
- Net assets rose in 0 of 5 year-on-year comparisons on record.
- Current assets of £2 against £1,582 owed within a year: 0.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | -£1,940 | £2 | £1,582 | 0 | |
| 30 Nov 2024 | -£1,580 | £2 | £1,188 | 2 | |
| 30 Nov 2023 | -£1,186 | £2 | £889 | 2 | |
| 30 Nov 2022 | -£887 | £2 | 2 | ||
| 30 Nov 2021 | -£532 | £2 | £234 | 2 | |
| 30 Nov 2020 | -£232 | £2 | 2 |
Where J-Mech Electrical Services Ltd is registered
The registered office is in Rochester (ME2), in the Medway local authority area, South East. Show ME2 4LY on a map.
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What happens if J-Mech Electrical Services Ltd 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 12299336
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 November 2019 (6 years ago)
- Registered office
- 10 Dickens Court Enterprise Court, Medway City Est, Rochester, Kent, ME2 4LY
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 23 October 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 Rochester
Other active electrical contractors registered in Rochester.
- J7 Electrical Services Ltd2022
- Jaw Electrics Ltd2017
- Jes Electrical Kent Limited2023
- JG Electrical (UK) Limited2008
- JL M and E Ltd2026
- JNS Electrical Services Ltd2016
- Jonas Electrical Services Limited2018
- JW & Co Maintenance Ltd2022
All electrical contractors in Rochester · All trades in Rochester · Electricians across the UK
Frequently asked questions
When are J-Mech Electrical Services Ltd's accounts due?
J-Mech Electrical Services Ltd's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is J-Mech Electrical Services Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is J-Mech Electrical Services Ltd still trading?
J-Mech Electrical Services Ltd 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 J-Mech Electrical Services Ltd do?
J-Mech Electrical Services Ltd is registered under Electrical installation (SIC 43210).
How old is J-Mech Electrical Services Ltd?
J-Mech Electrical Services Ltd was incorporated on 5 November 2019, 6 years ago.
What is the penalty if J-Mech Electrical Services Ltd 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 J-Mech Electrical Services Ltd 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.