- Companies
- Electricians
- Mildenhall
- Sundervolt Ltd
Sundervolt Ltd
- Company number
- 14140959
- Incorporated
- 30 May 20224 years trading
- Registered office
- Suite A, 82 James Carter Road, Mildenhall, Suffolk, IP28 7DE
- Nature of business
- Electrical installation
Sundervolt Ltd is a 4-year-old private limited company registered in Mildenhall, company number 14140959, one of 20 electrical contractors in Mildenhall. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
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 £4,819 (-43.9%) on the year before, to £6,160.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £29K against £198 owed within a year: more than 10 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2023 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £6,160 | £29K | £198 | 1 | |
| 31 May 2025 | £11K | £31K | £714 | 1 | |
| 31 May 2024 | £13K | £40K | £1,852 | 1 | |
| 31 May 2023 | £13K | £25K | 1 |
Where Sundervolt Ltd is registered
The registered office is in Mildenhall (IP28), in the West Suffolk local authority area, East of England. Show IP28 7DE on a map.
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Shared registered office
204 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 Sundervolt 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2029 | 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
- 14140959
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 May 2022 (4 years ago)
- Registered office
- Suite A, 82 James Carter Road, Mildenhall, Suffolk, IP28 7DE
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 29 May 2026
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 Mildenhall
Other active electrical contractors registered in Mildenhall.
- The Electric Toad UK Ltd2023
- Vivid Lighting Limited2019
- Wiggin Electrical Ltd2023
- 13Amps Engineering Ltd2017
- 1827 Electrical Services Limited2018
- Asm Electrical & Security Ltd2026
- Automated Buildings Limited2026
- DT Electrical (Eastern) Ltd2026
All electrical contractors in Mildenhall · All trades in Mildenhall · Electricians across the UK
Frequently asked questions
When are Sundervolt Ltd's accounts due?
Sundervolt Ltd's next accounts are due at Companies House by 29 February 2028 (in 505 days), covering the period to 31 May 2027.
When is Sundervolt Ltd's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is Sundervolt Ltd still trading?
Sundervolt 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 Sundervolt Ltd do?
Sundervolt Ltd is registered under Electrical installation (SIC 43210).
How old is Sundervolt Ltd?
Sundervolt Ltd was incorporated on 30 May 2022, 4 years ago.
What is the penalty if Sundervolt 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 Sundervolt 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.