- Companies
- Electricians
- Pontypridd
- Seren's Electrical Testing Services Ltd
Seren's Electrical Testing Services Ltd
- Company number
- 12277060
- Incorporated
- 23 Oct 20196 years trading
- Registered office
- 21 Sycamore Street, Pontypridd, Mid Glamorgan, CF37 5NB
- Nature of business
- Electrical installation
Seren's Electrical Testing Services Ltd is a 6-year-old private limited company registered in Pontypridd, company number 12277060, one of 36 electrical contractors in Pontypridd. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 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 £5,709 (-8.3%) on the year before, to £63K.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £65K against £18K owed within a year: 3.6 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £63K | £65K | £18K | 2 | |
| 31 Mar 2025 | £69K | £69K | £15K | 2 | |
| 31 Mar 2024 | £66K | £90K | £24K | 1 | |
| 31 Mar 2023 | £41K | £63K | £23K | 1 | |
| 31 Mar 2022 | £19K | £35K | £20K | 1 | |
| 31 Oct 2020 | £4,664 | £9,904 | 1 |
Where Seren's Electrical Testing Services Ltd is registered
The registered office is in Pontypridd (CF37), in the Rhondda Cynon Taf local authority area, Wales. Show CF37 5NB on a map.
Other trade companies in CF37
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- Pencoed Building Services LtdSpecialist contractors
- Pyo Property Developments LimitedBuilders
- Great Choice Leisure Vehicles LimitedMotor traders
- C2 Interior Contractors LtdBuilders
- Carpet Mine LtdFinishing trades
- LCH4RP LtdProperty developers
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What happens if Seren's Electrical Testing 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 12277060
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 October 2019 (6 years ago)
- Registered office
- 21 Sycamore Street, Pontypridd, Mid Glamorgan, CF37 5NB
- 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 2026
- Last confirmation statement
- 14 October 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 Pontypridd
Other active electrical contractors registered in Pontypridd.
- Slaters Building and Electrical Services Ltd2023
- Starlink Electrical Limited2021
- TLCS Solutions Ltd2024
- Total Fire Solutions (South) Limited2005
- Voltage Connect Ltd2025
- Wayne Keepin Electrical Limited2021
- Wilsher Electrical Ltd2024
- Wirewise Solutions Ltd2026
All electrical contractors in Pontypridd · All trades in Pontypridd · Electricians across the UK
Frequently asked questions
When are Seren's Electrical Testing Services Ltd's accounts due?
Seren's Electrical Testing Services Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Seren's Electrical Testing Services Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Seren's Electrical Testing Services Ltd still trading?
Seren's Electrical Testing 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 Seren's Electrical Testing Services Ltd do?
Seren's Electrical Testing Services Ltd is registered under Electrical installation (SIC 43210).
How old is Seren's Electrical Testing Services Ltd?
Seren's Electrical Testing Services Ltd was incorporated on 23 October 2019, 6 years ago.
What is the penalty if Seren's Electrical Testing 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 Seren's Electrical Testing 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.