- Companies
- Electricians
- Belfast
- CSW Electrical Installations Ltd
CSW Electrical Installations Ltd
- Company number
- NI741086
- Incorporated
- 2 Jun 2026
- Registered office
- 119 Cumberland Road, Dundonald, Belfast, BT16 2BB
- Nature of business
- Electrical installation
CSW Electrical Installations Ltd is a newly incorporated private limited company registered in Belfast, company number NI741086, one of 126 electrical contractors in Belfast. Its next accounts are due at Companies House on 2 March 2028, and its first CT600 is due at HMRC on 1 June 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where CSW Electrical Installations Ltd is registered
The registered office is in Belfast (BT16), in the Lisburn and Castlereagh local authority area, Northern Ireland. Show BT16 2BB on a map.
Other trade companies in BT16
- Drytech Restoration LtdFinishing trades
- Ali Motors Services LtdMotor traders
- Phil & Sons Joinery LtdRoofers
- J Hoy Aero LtdMachinery repair and installation
- Gilnahirk Tuning LimitedMechanics and garages
- McKee Landscaping LtdLandscapers and gardeners
- Scaffmonkey Scaffolding Services LtdScaffolders
- Colville Roofing and Guttering LtdRoofers
What happens if CSW Electrical Installations 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 2 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 3 Mar 2028 to 2 Apr 2028 | £150 |
| 1 to 3 months late | 3 Apr 2028 to 2 Jun 2028 | £375 |
| 3 to 6 months late | 3 Jun 2028 to 2 Sep 2028 | £750 |
| More than 6 months late | From 3 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- NI741086
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 June 2026
- Registered office
- 119 Cumberland Road, Dundonald, Belfast, BT16 2BB
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
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 Belfast
Other active electrical contractors registered in Belfast.
- CTS Tech Services Limited2016
- D Electrician Limited2024
- D V V Cabling Ltd2003
- Darren Kerr Electrical & Property Services Limited2023
- Derek Millar Electrical Limited2011
- Design Electrical & Energy Services Limited2017
- DF Electrical Group Ltd2026
- Dugan Electrical Services Limited2010
All electrical contractors in Belfast · All trades in Belfast · Electricians across the UK
Frequently asked questions
When are CSW Electrical Installations Ltd's accounts due?
CSW Electrical Installations Ltd's next accounts are due at Companies House by 2 March 2028 (in 507 days), covering the period to 30 June 2027.
When is CSW Electrical Installations Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 1 June 2027, due by 1 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is CSW Electrical Installations Ltd still trading?
CSW Electrical Installations 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 CSW Electrical Installations Ltd do?
CSW Electrical Installations Ltd is registered under Electrical installation (SIC 43210).
How old is CSW Electrical Installations Ltd?
CSW Electrical Installations Ltd was incorporated on 2 June 2026, less than a year ago.
What is the penalty if CSW Electrical Installations 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 CSW Electrical Installations 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.