- Companies
- Electricians
- Swansea
- L J Engineering Ltd
L J Engineering Ltd
- Company number
- 16354122
- Incorporated
- 31 Mar 20251 year trading
- Registered office
- 15 Ffordd Danygraig, Godrergraig, Swansea, SA9 2BH
- Nature of business
- Electrical installation
L J Engineering Ltd is a 1-year-old private limited company registered in Swansea, company number 16354122, one of 148 electrical contractors in Swansea. 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 L J Engineering Ltd is registered
The registered office is in Swansea (SA9), in the Neath Port Talbot local authority area, Wales. Show SA9 2BH on a map.
Other trade companies in SA9
- Eidolon Renovations LtdPlumbers and heating engineers
- Michael Jones Renovations LtdProperty developers
- Cyfyng Road Developments LtdFinishing trades
- Orwell’S Accident Repair LtdMechanics and garages
- WLM Car and Commercial Services LtdMotor traders
- Tom Graham Maintenance LtdFinishing trades
- Precious Time Cleaning Solutions LtdCleaning companies
- TD Heating Solutions LtdPlumbers and heating engineers
What happens if L J Engineering 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
- 16354122
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 March 2025 (1 year ago)
- Registered office
- 15 Ffordd Danygraig, Godrergraig, Swansea, SA9 2BH
- 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
- 30 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 Swansea
Other active electrical contractors registered in Swansea.
- La Energy Ltd2025
- Let's Connect Electrical Services Ltd2023
- Liberty Control Services Limited2021
- M & M`S Electrical Co. Ltd2009
- Mac Electrical Services Limited2021
- Mart & Sparks Ltd2023
- Medwin Ltd2020
- Merlin Fire Services Limited2016
All electrical contractors in Swansea · All trades in Swansea · Electricians across the UK
Frequently asked questions
When are L J Engineering Ltd's accounts due?
L J Engineering 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 L J Engineering 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 L J Engineering Ltd still trading?
L J Engineering 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 L J Engineering Ltd do?
L J Engineering Ltd is registered under Electrical installation (SIC 43210).
How old is L J Engineering Ltd?
L J Engineering Ltd was incorporated on 31 March 2025, 1 year ago.
What is the penalty if L J Engineering 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 L J Engineering 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.