- Companies
- Electricians
- Southampton
- Sparkworks Energy Ltd
Sparkworks Energy Ltd
- Company number
- 15363166
- Incorporated
- 19 Dec 20232 years trading
- Registered office
- 12 Botley Road, Hedge End, Southampton, SO30 2HE
- Nature of business
- Electrical installation
Sparkworks Energy Ltd is a 2-year-old private limited company registered in Southampton, company number 15363166, one of 342 electrical contractors in Southampton. Companies House shows its accounts as overdue: they were due on 30 September 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2024
From the balance sheet at 31 December 2024, as filed at Companies House.
Who runs and owns Sparkworks Energy Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| Z*** H*** | Director | Dec 2023 |
| M*** P*** | Director | Dec 2023 |
People with significant control (2)
Where Sparkworks Energy Ltd is registered
The registered office is in Southampton (SO30), in the Eastleigh local authority area, South East. Show SO30 2HE on a map.
Other trade companies in SO30
- Masters Vehicle Solutions LtdMechanics and garages
- JG Projects 02 LtdFinishing trades
- GW Installations LimitedGlaziers
- Winterstone Systems LtdElectricians
- Stay Sure Drives and Patios LtdLandscapers and gardeners
- Epc Upgrade Group LtdElectricians
- Ross Maynard Projects LtdProperty developers
- Picca Compliance LimitedElectricians
What happens if Sparkworks Energy Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 15363166
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 December 2023 (2 years ago)
- Registered office
- 12 Botley Road, Hedge End, Southampton, SO30 2HE
- 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 2024
- Last confirmation statement
- 18 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 Southampton
Other active electrical contractors registered in Southampton.
- Sparky Renovations Ltd2024
- Sparkys & Co (Hampshire) Ltd2014
- Sparkys & Hutch Electrical Limited2019
- SRR Marine Ltd2019
- Star-Delta Electrical Services Limited2015
- Stone Electrical Southern Ltd2020
- Strong Current Group Limited2023
- T & W Electrical (South Coast) Limited2012
All electrical contractors in Southampton · All trades in Southampton · Electricians across the UK
Frequently asked questions
When are Sparkworks Energy Ltd's accounts due?
Sparkworks Energy Ltd's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Sparkworks Energy Ltd's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is Sparkworks Energy Ltd still trading?
Sparkworks Energy Ltd is listed as active on the Companies House register (checked 14 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 Sparkworks Energy Ltd do?
Sparkworks Energy Ltd is registered under Electrical installation (SIC 43210).
How old is Sparkworks Energy Ltd?
Sparkworks Energy Ltd was incorporated on 19 December 2023, 2 years ago.
Who runs Sparkworks Energy Ltd?
Sparkworks Energy Ltd has 2 active directors, the longest-serving appointed in Dec 2023. Their names and service addresses are on the Companies House register.
Who owns Sparkworks Energy Ltd?
2 people or companies have significant control of Sparkworks Energy Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Sparkworks Energy 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 Sparkworks Energy Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 14 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.