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- Sonic Electrical Contractors Ltd
Company profile · Electricians
Sonic Electrical Contractors Ltd
Sonic Electrical Contractors Ltd is a 3-year-old private limited company registered in Leigh on Sea, company number 14514435, one of 35 electrical contractors in Leigh on Sea. 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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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House.
Sonic Electrical Contractors Ltd over the years
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 £6,885 (-36.7%) on the year before, to £12K.
- Current assets of £32K against £35K owed within a year: 0.9 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £12K | £32K | £35K | 0 | |
| 31 Mar 2024 | £19K | £19K | £18K | 1 | |
| 31 Mar 2023 | £18K | £13K | £6,664 | 1 |
Where Sonic Electrical Contractors Ltd is registered
The registered office is in Leigh on Sea (SS9), in the Southend-on-Sea local authority area, East of England. Show SS9 2UJ on a map.
Other trade companies in SS9
- Cheap Locksmith Essex LtdRepair services
- Alexander Hall Real Estate LtdProperty developers
- Britannia Roofing & Dampproofing LtdRoofers
- Elite Build & Co (Essex) LtdBuilders
- High Lift Scaffold LimitedScaffolders
- Hill's Plumbing, Heating & Gas LtdPlumbers and heating engineers
- MTS Piling LimitedSpecialist contractors
- Install & Transport LimitedMachinery repair and installation
Shared registered office
164 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 Sonic Electrical Contractors 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
- 14514435
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 November 2022 (3 years ago)
- Registered office
- 1386 London Road, Leigh on Sea, Essex, SS9 2UJ
- 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
- 28 November 2024
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 Leigh on Sea
Other active electrical contractors registered in Leigh on Sea.
- SPM Installs Limited2018
- SPM South Limited2019
- Wireworks Ltd2023
- Young Construction Limited2002
- A Binns Electrical (Testing) Ltd2020
- Albatross Electrics Limited2016
- Antley Aviation Services Limited2015
- Balm & Davies Limited2000
All electrical contractors in Leigh on Sea · All trades in Leigh on Sea · Electricians across the UK
Frequently asked questions
When are Sonic Electrical Contractors Ltd's accounts due?
Sonic Electrical Contractors Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Sonic Electrical Contractors 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 Sonic Electrical Contractors Ltd still trading?
Sonic Electrical Contractors Ltd is listed as active on the Companies House register (checked 12 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 Sonic Electrical Contractors Ltd do?
Sonic Electrical Contractors Ltd is registered under Electrical installation (SIC 43210).
How old is Sonic Electrical Contractors Ltd?
Sonic Electrical Contractors Ltd was incorporated on 29 November 2022, 3 years ago.
What is the penalty if Sonic Electrical Contractors 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 Sonic Electrical Contractors Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.