- Companies
- Property developers
- Dromore
- O'Neill Mechanical & Electrical Services Limited
O'Neill Mechanical & Electrical Services Limited
- Company number
- NI039851
- Incorporated
- 14 Dec 200025 years trading
- Registered office
- 93 Tummery Road, Dromore, Co Tyrone, BT78 3LJ
- Nature of business
- Development of building projects; Construction of commercial buildings; Construction of domestic buildings; Electrical installation
O'Neill Mechanical & Electrical Services Limited is a 25-year-old private limited company registered in Dromore, company number NI039851, one of 30 property development companies in Dromore. 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 £112K (+7.7%) on the year before, to £1.6M.
- Current assets of £3.1M against £2M owed within a year: 1.6 times cover.
- 42 employees on average during the year.
- Balance sheets on record for 3 years, 2015 to 2017.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2017 | £1.6M | £194K | £3.1M | £2M | 42 |
| 30 Nov 2016 | £1.5M | £455K | £1.7M | £510K | |
| 30 Nov 2015 | £1.3M | £559K | £1.9M | £811K |
Where O'Neill Mechanical & Electrical Services Limited is registered
The registered office is in Dromore (BT78), in the Fermanagh and Omagh local authority area, Northern Ireland. Show BT78 3LJ on a map.
Other trade companies in BT78
- Loane Construction LtdBuilders
- Megan Frames NI LtdBuilders
- Creevan Joinery LtdJoiners and carpenters
- Ryan O'Neill Electrical LtdElectricians
- Camderry Contracts LtdJoiners and carpenters
- Cmacrecoverys LimitedMechanics and garages
- North West Building & Plant Hire Contracts LimitedSpecialist contractors
- Old Forge Contracting LimitedInstallers
What happens if O'Neill Mechanical & Electrical Services Limited 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
- NI039851
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 December 2000 (25 years ago)
- Registered office
- 93 Tummery Road, Dromore, Co Tyrone, BT78 3LJ
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Electrical installation (SIC 43210) - Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 13 December 2025
- Charges (mortgages)
- 2 outstanding of 2 registered
- Previous names
- O'Neill Electrics Limited (until 12 Dec 2018)
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Dromore
Other active property development companies registered in Dromore.
- Parkgate Property Developments Ltd2021
- Shanmullagh Developments Ltd2000
- Struleview Homes Ltd2019
- TDC Building & Joinery Ltd2026
- W.S. Calvert Limited2005
- WHW Construction Ltd2021
- Arthur's of Hillsborough Limited2019
- Ballycross Developments Ltd2015
All property development companies in Dromore · All trades in Dromore · Property developers across the UK
Frequently asked questions
When are O'Neill Mechanical & Electrical Services Limited's accounts due?
O'Neill Mechanical & Electrical Services Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is O'Neill Mechanical & Electrical Services Limited'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 O'Neill Mechanical & Electrical Services Limited still trading?
O'Neill Mechanical & Electrical Services Limited 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'Neill Mechanical & Electrical Services Limited do?
O'Neill Mechanical & Electrical Services Limited is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Electrical installation (SIC 43210).
How old is O'Neill Mechanical & Electrical Services Limited?
O'Neill Mechanical & Electrical Services Limited was incorporated on 14 December 2000, 25 years ago.
What is the penalty if O'Neill Mechanical & Electrical Services Limited 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'Neill Mechanical & Electrical Services Limited 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.