- Companies
- Electricians
- Dover
- Sek-Elec Electrical Services Ltd
Sek-Elec Electrical Services Ltd
- Company number
- 13251718
- Incorporated
- 8 Mar 20215 years trading
- Registered office
- 1 Heritage Gardens, Dover, CT16 1AL
- Nature of business
- Electrical installation
Sek-Elec Electrical Services Ltd is a 5-year-old private limited company registered in Dover, company number 13251718, one of 21 electrical contractors in Dover. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 up £3,537 (+33.8%) on the year before, to £14K.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £5,906 against £467 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £14K | £5,906 | £467 | 0 | |
| 31 Mar 2024 | £10K | £3,126 | £585 | 0 | |
| 31 Mar 2023 | £10K | £2,000 | £0 | 0 | |
| 31 Mar 2022 | £1 |
Where Sek-Elec Electrical Services Ltd is registered
The registered office is in Dover (CT16), in the Dover local authority area, South East. Show CT16 1AL on a map.
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What happens if Sek-Elec 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 13251718
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 March 2021 (5 years ago)
- Registered office
- 1 Heritage Gardens, Dover, CT16 1AL
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 7 March 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 Dover
Other active electrical contractors registered in Dover.
- Sharp Electrics (Kent) Limited2025
- Voltech Electrical Solutions Ltd2024
- A&E Electrics Limited2012
- Acc Electrical Contractors Limited2012
- Adwt Limited2022
- Athena Solar and Electrical Solutions Limited2025
- Borderwell Limited1985
- CMMH Limited2023
All electrical contractors in Dover · All trades in Dover · Electricians across the UK
Frequently asked questions
When are Sek-Elec Electrical Services Ltd's accounts due?
Sek-Elec Electrical Services Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Sek-Elec Electrical Services Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Sek-Elec Electrical Services Ltd still trading?
Sek-Elec 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 Sek-Elec Electrical Services Ltd do?
Sek-Elec Electrical Services Ltd is registered under Electrical installation (SIC 43210).
How old is Sek-Elec Electrical Services Ltd?
Sek-Elec Electrical Services Ltd was incorporated on 8 March 2021, 5 years ago.
What is the penalty if Sek-Elec 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 Sek-Elec 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.