- Companies
- Electricians
- London
- Jess Williamson Electrical Ltd
Jess Williamson Electrical Ltd
- Company number
- 09907331
- Incorporated
- 8 Dec 201510 years trading
- Registered office
- International House, Commercial Street, London, E1 6BD
- Nature of business
- Electrical installation
Jess Williamson Electrical Ltd is a 10-year-old private limited company registered in London, company number 09907331, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £1,330 (-99.9%) on the year before, to £1.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £23K against £23K owed within a year: 1.0 times cover.
- 2 employees 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 |
|---|---|---|---|---|---|
| 31 Dec 2025 | £1 | £23K | £23K | 2 | |
| 31 Dec 2024 | £1,331 | £5,045 | £3,714 | 2 | |
| 31 Dec 2023 | £3,869 | £10K | £6,480 | 2 | |
| 31 Dec 2022 | £35K | £40K | £4,895 | 1 | |
| 31 Dec 2021 | £32K | £32K | 2 | ||
| 31 Dec 2020 | £17K | £17K | 2 | ||
| 31 Dec 2019 | £2,960 | £2,960 | £0 | 1 | |
| 31 Dec 2018 | £899 | £2,967 | £1,330 | 1 | |
| 31 Dec 2017 | £6,583 | £9,957 | £3,374 | ||
| 31 Dec 2016 | £17K | £32K | £15K |
Where Jess Williamson Electrical Ltd is registered
The registered office is in London (E1), in the Tower Hamlets local authority area, London. Show E1 6BD on a map.
Other trade companies in E1
- Safa Builds LtdElectricians
- Ribh LtdElectricians
- Tyres on Call LtdMechanics and garages
- Hrautosources LtdMotor traders
- Choiceworks LimitedInstallers
- E.M Construction London LtdBuilders
- Qubic Maintenance LtdSpecialist contractors
- Moovin Transport LtdMechanics and garages
Also registered at this address
5 other companies use the same registered office as Jess Williamson Electrical Ltd.
- Albi -Uhum Holdings LtdProperty developers
- Av Plumbing & Heating Services LtdPlumbers and heating engineers
- Ikw Property LtdProperty developers
- Restoration Nation LtdMechanics and garages
- Soon Flying LtdMachinery repair and installation
What happens if Jess Williamson Electrical 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 09907331
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 December 2015 (10 years ago)
- Registered office
- International House, Commercial Street, London, E1 6BD
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 7 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 London
Other active electrical contractors registered in London.
- JFC Contractors Ltd2014
- JG Swan Housing Ltd2026
- Jgilly Lighting Ltd2023
- JHT Energy Services Ltd2021
- Jim Doran Ltd2015
- JJ Electrical Services Limited2000
- JJ London Services Limited2020
- JJC Electrical Ltd2020
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Jess Williamson Electrical Ltd's accounts due?
Jess Williamson Electrical Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Jess Williamson Electrical Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Jess Williamson Electrical Ltd still trading?
Jess Williamson Electrical 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 Jess Williamson Electrical Ltd do?
Jess Williamson Electrical Ltd is registered under Electrical installation (SIC 43210).
How old is Jess Williamson Electrical Ltd?
Jess Williamson Electrical Ltd was incorporated on 8 December 2015, 10 years ago.
What is the penalty if Jess Williamson Electrical 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 Jess Williamson Electrical 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.