- Companies
- Electricians
- Luton
- O'Sullivan E&I Technical Services Ltd
O'Sullivan E&I Technical Services Ltd
- Company number
- 14119377
- Incorporated
- 19 May 20224 years trading
- Registered office
- 199 Woodside Road, Luton, LU1 4LU
- Nature of business
- Electrical installation
O'Sullivan E&I Technical Services Ltd is a 4-year-old private limited company registered in Luton, company number 14119377, one of 185 electrical contractors in Luton. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £16K on the year before, to £16K.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £48K against £33K owed within a year: 1.5 times cover.
- 2 employees on average, up from 0 the year before.
- Balance sheets on record for 5 years, 2023 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £16K | £48K | £48K | £33K | 2 |
| 31 May 2025 | -£86 | £1 | £274 | £360 | 0 |
| 31 May 2024 | £1 | ||||
| 31 May 2023 | £1 | ||||
| 24 May 2023 | £1 |
Where O'Sullivan E&I Technical Services Ltd is registered
The registered office is in Luton (LU1), in the Central Bedfordshire local authority area, East of England. Show LU1 4LU on a map.
Other trade companies in LU1
- Metalia Plastering LtdPlasterers
- Luton Bodyworks LtdMechanics and garages
- Speedyone LtdGroundworks and demolition
- Varion Construction LtdProperty developers
- Bromhams LtdMotor traders
- Vertex Home Improvements LtdRoofers
- Skillede LtdElectricians
- Avram Cleaning LtdCleaning companies
What happens if O'Sullivan E&I Technical 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 14119377
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 May 2022 (4 years ago)
- Registered office
- 199 Woodside Road, Luton, LU1 4LU
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 18 May 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 Luton
Other active electrical contractors registered in Luton.
- Ohms & Bytes Installations Ltd2014
- On Call Engineers Ltd.2024
- Pavel Solar Ltd2022
- PBX Electrical Services Limited2026
- Pettit Building Services Ltd2019
- Plug Guru Ltd2025
- Powell Electrical Limited2026
- Power Solutions Network Services Limited2011
All electrical contractors in Luton · All trades in Luton · Electricians across the UK
Frequently asked questions
When are O'Sullivan E&I Technical Services Ltd's accounts due?
O'Sullivan E&I Technical Services Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is O'Sullivan E&I Technical Services Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is O'Sullivan E&I Technical Services Ltd still trading?
O'Sullivan E&I Technical 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 O'Sullivan E&I Technical Services Ltd do?
O'Sullivan E&I Technical Services Ltd is registered under Electrical installation (SIC 43210).
How old is O'Sullivan E&I Technical Services Ltd?
O'Sullivan E&I Technical Services Ltd was incorporated on 19 May 2022, 4 years ago.
What is the penalty if O'Sullivan E&I Technical 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 O'Sullivan E&I Technical 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.