- Companies
- Electricians
- Newquay
- SJ Thomas Electrical (Cornwall) Ltd
SJ Thomas Electrical (Cornwall) Ltd
- Company number
- 16805567
- Incorporated
- 23 Oct 2025
- Registered office
- 2 King Mark House, Stret Constantine, Newquay, TR7 1GF
- Nature of business
- Electrical installation
SJ Thomas Electrical (Cornwall) Ltd is a newly incorporated private limited company registered in Newquay, company number 16805567, one of 25 electrical contractors in Newquay. 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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Financial snapshot, 2026
From the balance sheet at 31 March 2026, as filed at Companies House.
Where SJ Thomas Electrical (Cornwall) Ltd is registered
The registered office is in Newquay (TR7), in the Cornwall local authority area, South West. Show TR7 1GF on a map.
Other trade companies in TR7
- Headland Roofing LtdRoofers
- The Black Country Cleaning Company LtdCleaning companies
- Wynfield Garage LimitedMechanics and garages
- Investu LtdBuilders
- Chassis Proof LtdMechanics and garages
- RCG Cleaning LtdCleaning companies
- The Divine Kitchen Company (South West) LimitedJoiners and carpenters
- High Tide Plumbing and Heating LimitedPlumbers and heating engineers
Also registered at this address
8 other companies use the same registered office as SJ Thomas Electrical (Cornwall) Ltd.
- Clatworthy Developments (Lanner) LtdProperty developers
- CS Aviation Services LtdMachinery repair and installation
- Headland Roofing LtdRoofers
- J. Mortimer LtdMachinery repair and installation
- Manta Power LtdElectricians
- Mark Evans Car Sales LtdMotor traders
- ST Helieng LtdMachinery repair and installation
- The Old Foundry Laundry Services LtdCleaning companies
What happens if SJ Thomas Electrical (Cornwall) 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
- 16805567
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 October 2025
- Registered office
- 2 King Mark House, Stret Constantine, Newquay, TR7 1GF
- 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 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 Newquay
Other active electrical contractors registered in Newquay.
- SMV Electrical Ltd2020
- Southern Star Electrical Ltd2025
- Towan Property Services Ltd2025
- Wave Electrical Solutions Ltd2020
- All Connections Electrical Limited2008
- Cornwall Fleet Solutions Ltd2019
- Cortec Services Ltd2026
- CXT Electrical Solutions Ltd2025
All electrical contractors in Newquay · All trades in Newquay · Electricians across the UK
Frequently asked questions
When are SJ Thomas Electrical (Cornwall) Ltd's accounts due?
SJ Thomas Electrical (Cornwall) Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is SJ Thomas Electrical (Cornwall) 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 SJ Thomas Electrical (Cornwall) Ltd still trading?
SJ Thomas Electrical (Cornwall) 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 SJ Thomas Electrical (Cornwall) Ltd do?
SJ Thomas Electrical (Cornwall) Ltd is registered under Electrical installation (SIC 43210).
How old is SJ Thomas Electrical (Cornwall) Ltd?
SJ Thomas Electrical (Cornwall) Ltd was incorporated on 23 October 2025, less than a year ago.
What is the penalty if SJ Thomas Electrical (Cornwall) 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 SJ Thomas Electrical (Cornwall) 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.