- Companies
- Electricians
- Dartford
- Jam Electrical Services Ltd.
Jam Electrical Services Ltd.
- Company number
- 04880487
- Incorporated
- 28 Aug 200323 years trading
- Registered office
- Trinity House, 3 Bullace Lane, Dartford, Kent, DA1 1BB
- Nature of business
- Electrical installation
Jam Electrical Services Ltd. is a 23-year-old private limited company registered in Dartford, company number 04880487, one of 147 electrical contractors in Dartford. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £1,884 (-8.2%) on the year before, to £21K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £34K against £22K owed within a year: 1.6 times cover.
- 1 employee on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £21K | £34K | £22K | 1 | |
| 30 Sep 2024 | £23K | £42K | £19K | 1 | |
| 30 Sep 2023 | £27K | £53K | £26K | 1 | |
| 30 Sep 2022 | £28K | £49K | £21K | 1 | |
| 30 Sep 2021 | £26K | £47K | £21K | 1 | |
| 30 Sep 2020 | £13K | £39K | £17K | 1 | |
| 30 Sep 2019 | £20K | £40K | £20K | 1 | |
| 30 Sep 2018 | £19K | £36K | £17K | ||
| 30 Sep 2017 | £271 | £5,295 | £5,659 | ||
| 30 Sep 2016 | £6,663 | £9,192 | £10K | £4,330 |
Where Jam Electrical Services Ltd. is registered
The registered office is in Dartford (DA1), in the Dartford local authority area, South East. Show DA1 1BB on a map.
Other trade companies in DA1
- Unit 6 Bespoke LtdSpecialist contractors
- Smartlifting LtdBuilders
- Degrees Bespoke Finishes LtdPlasterers
- A & A Electrical and Refrigeration LtdBuilders
- Elm Servicing LtdMachinery repair and installation
- WND Refrigeration LimitedPlumbers and heating engineers
- Moore Flooring and Sons LtdFloor and wall tilers
- Kinergy Systems LtdElectricians
Shared registered office
65 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Jam 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 04880487
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 August 2003 (23 years ago)
- Registered office
- Trinity House, 3 Bullace Lane, Dartford, Kent, DA1 1BB
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 28 August 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 Dartford
Other active electrical contractors registered in Dartford.
- JC5 Electrical Limited2026
- Jia Electrical Ltd2024
- Joel Glass Services Ltd2016
- Jre Services Limited2018
- Kinergy Systems Ltd2026
- Kingsgrove Electrical Limited2019
- Kinsella Group Ltd2021
- KL Electrical Installations Limited2013
All electrical contractors in Dartford · All trades in Dartford · Electricians across the UK
Frequently asked questions
When are Jam Electrical Services Ltd.'s accounts due?
Jam Electrical Services Ltd.'s next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Jam Electrical Services Ltd.'s CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Jam Electrical Services Ltd. still trading?
Jam Electrical Services Ltd. 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 Jam Electrical Services Ltd. do?
Jam Electrical Services Ltd. is registered under Electrical installation (SIC 43210).
How old is Jam Electrical Services Ltd.?
Jam Electrical Services Ltd. was incorporated on 28 August 2003, 23 years ago.
What is the penalty if Jam 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 Jam Electrical Services Ltd. 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.