- Companies
- Electricians
- Cardiff
- Sonik Electrical Ltd
Sonik Electrical Ltd
- Company number
- 07987709
- Incorporated
- 13 Mar 201214 years trading
- Registered office
- CHP Clifton House, Four Elms Road, Cardiff, CF24 1LE
- Nature of business
- Electrical installation
Sonik Electrical Ltd is a 14-year-old private limited company registered in Cardiff, company number 07987709, one of 223 electrical contractors in Cardiff. 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 £15K (+104.4%) on the year before, to £620.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £50K against £31K owed within a year: 1.6 times cover.
- 1 employee on average, down from 2 the year before.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £620 | £1,014 | £50K | £31K | 1 |
| 31 Mar 2024 | -£14K | £6,209 | £53K | £46K | 2 |
| 31 Mar 2023 | £4,851 | £12K | £86K | £56K | 4 |
| 31 Mar 2022 | £2,929 | £658 | £81K | £39K | 2 |
| 31 Mar 2021 | £202 | £2,809 | £77K | £44K | 4 |
| 31 Mar 2020 | £2,019 | £1,467 | £37K | £39K | 3 |
| 31 Mar 2019 | £834 | £859 | £27K | £31K | 2 |
| 31 Mar 2018 | £1,885 | £5,121 | £40K | £45K | 2 |
| 31 Mar 2017 | £2,392 | £3,398 | £15K | £22K | 6 |
Where Sonik Electrical Ltd is registered
The registered office is in Cardiff (CF24), in the Cardiff local authority area, Wales. Show CF24 1LE on a map.
Other trade companies in CF24
- New Capital Tyres LtdMotor traders
- Beza Home Climate LtdPlumbers and heating engineers
- Jafa Construction LtdBuilders
- A R Lawn Care & Garden Services LtdLandscapers and gardeners
- RK Asset & Trading Co LtdMotor traders
- ZCC Garage LtdMechanics and garages
- Szot LtdPlasterers
- Oceanway Tyres LtdMechanics and garages
Also registered at this address
3 other companies use the same registered office as Sonik Electrical Ltd.
- Ashbee Building LtdFinishing trades
- Ashbee Developments LtdBuilders
- Master Maintenance LtdLandscapers and gardeners
What happens if Sonik Electrical 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
- 07987709
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 March 2012 (14 years ago)
- Registered office
- CHP Clifton House, Four Elms Road, Cardiff, CF24 1LE
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 13 March 2026
- Previous names
- Sonik Alarms Ltd (until 16 Mar 2012)
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 Cardiff
Other active electrical contractors registered in Cardiff.
- South Wales Fire Sprinklers Limited2016
- SP Electrical (South Wales) Ltd2022
- Sparks & Co (Solar Force) Ltd2018
- Summit Electrical Group Ltd2026
- Switch Start Electrical Ltd2017
- T&B Electrical Solutions Limited2005
- Taurus Electrical Services Ltd2023
- Techno Electrical Ltd2024
All electrical contractors in Cardiff · All trades in Cardiff · Electricians across the UK
Frequently asked questions
When are Sonik Electrical Ltd's accounts due?
Sonik Electrical 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 Sonik Electrical 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 Sonik Electrical Ltd still trading?
Sonik Electrical 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 Sonik Electrical Ltd do?
Sonik Electrical Ltd is registered under Electrical installation (SIC 43210).
How old is Sonik Electrical Ltd?
Sonik Electrical Ltd was incorporated on 13 March 2012, 14 years ago.
What is the penalty if Sonik Electrical 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 Sonik Electrical 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.