- Companies
- Electricians
- Isleworth
- Sparkvolt Electrical Services Ltd
Sparkvolt Electrical Services Ltd
- Company number
- 13088435
- Incorporated
- 17 Dec 20205 years trading
- Registered office
- Unit 11, Worton Court, Worton Hall Ind Estate, Worton Road, Isleworth, Middlesex, TW7 6ER
- Nature of business
- Electrical installation
Sparkvolt Electrical Services Ltd is a 5-year-old private limited company registered in Isleworth, company number 13088435, one of 26 electrical contractors in Isleworth. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Sparkvolt Electrical Services LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £205 (+476.7%) on the year before, to £248.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £6,969 against £8,796 owed within a year: 0.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £248 | £1,446 | £6,969 | £8,796 | 1 |
| 31 Dec 2024 | £43 | £1,614 | £1,571 | 1 | |
| 31 Dec 2023 | £3,416 | £9,651 | £6,235 | 1 | |
| 31 Dec 2022 | £3,266 | £902 | £2,364 | 1 | |
| 31 Dec 2021 | £2 | £2 | 1 |
Who runs and owns Sparkvolt Electrical Services Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| C*** A*** | Director | Dec 2020 |
| C*** A*** | Secretary | Dec 2020 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| A*** B*** | Secretary | Dec 2020 | Dec 2022 |
Person with significant control
Where Sparkvolt Electrical Services Ltd is registered
The registered office is in Isleworth (TW7), in the Hounslow local authority area, London. Show TW7 6ER on a map.
Other trade companies in TW7
- Pracom LtdMachinery repair and installation
- V&R Construction Group LtdBuilders
- Gio Construction LimitedBuilders
- S & H Bodywork LtdMechanics and garages
- KS Garage Isleworth LtdMotor traders
- C Wiseman Services LtdCleaning companies
- Avenida Developments LtdProperty developers
- Courtesy Cars Group UK LtdMotor traders
Also registered at this address
2 other companies use the same registered office as Sparkvolt Electrical Services Ltd.
- City Conversion LtdJoiners and carpenters
- T&Z Cleaning and Painting-Decorating Company LtdCleaning companies
What happens if Sparkvolt 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 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
- 13088435
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 December 2020 (5 years ago)
- Registered office
- Unit 11, Worton Court, Worton Hall Ind Estate, Worton Road, Isleworth, Middlesex, TW7 6ER
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 16 December 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 Isleworth
Other active electrical contractors registered in Isleworth.
- T.A.S.S Electrical & Plumbing Ltd2011
- Toby Mills Electrical Limited2012
- Tripping Out Electrics Ltd2022
- W.E.C. Electrical Contractors Ltd2001
- Yj Fire Solutions Ltd2026
- Broad Electricians Limited2014
- Buzzpv Limited2024
- C B Electrical & Mechanical Services Ltd2012
All electrical contractors in Isleworth · All trades in Isleworth · Electricians across the UK
Frequently asked questions
When are Sparkvolt Electrical Services Ltd's accounts due?
Sparkvolt Electrical Services 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 Sparkvolt Electrical Services 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 Sparkvolt Electrical Services Ltd still trading?
Sparkvolt 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 Sparkvolt Electrical Services Ltd do?
Sparkvolt Electrical Services Ltd is registered under Electrical installation (SIC 43210).
How old is Sparkvolt Electrical Services Ltd?
Sparkvolt Electrical Services Ltd was incorporated on 17 December 2020, 5 years ago.
Who runs Sparkvolt Electrical Services Ltd?
Sparkvolt Electrical Services Ltd has 1 active director, the longest-serving appointed in Dec 2020. Their names and service addresses are on the Companies House register.
Who owns Sparkvolt Electrical Services Ltd?
One person or company has significant control of Sparkvolt Electrical Services Ltd: an individual (owns 25% to 50% of the shares).
What is the penalty if Sparkvolt 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 Sparkvolt 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.