- Companies
- Electricians
- Belfast
- Sentor Electrical Services Ltd
Sentor Electrical Services Ltd
- Company number
- NI054523
- Incorporated
- 4 Apr 200521 years trading
- Registered office
- 22A Musgrave Park Industrial Estate, Stockmans Way, Belfast, Co Antrim, BT9 7ET
- Nature of business
- Electrical installation
Sentor Electrical Services Ltd is a 21-year-old private limited company registered in Belfast, company number NI054523, one of 126 electrical contractors in Belfast. 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 £39K (+36.5%) on the year before, to £145K.
- Current assets of £380K against £275K owed within a year: 1.4 times cover.
- 25 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 |
|---|---|---|---|---|---|
| 31 Mar 2017 | £145K | £72K | £380K | £275K | 25 |
| 31 Mar 2016 | £106K | £62K | £337K | £272K | |
| 31 Mar 2015 | £107K | £60K | £284K | £210K |
Where Sentor Electrical Services Ltd is registered
The registered office is in Belfast (BT9), in the Belfast local authority area, Northern Ireland. Show BT9 7ET on a map.
Other trade companies in BT9
- Carnkilly Estates LimitedProperty developers
- Roux Flow and Co LtdPlumbers and heating engineers
- Ormeau Parkview LtdProperty developers
- ZK Auto LimitedMotor traders
- Alina Rista Motors LtdMotor traders
- Andrews Sheet Metal Works LtdPlumbers and heating engineers
- Carbtuneshop LtdMotor traders
- Red Compliance Electrical Services LimitedElectricians
What happens if Sentor Electrical 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 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
- NI054523
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 April 2005 (21 years ago)
- Registered office
- 22A Musgrave Park Industrial Estate, Stockmans Way, Belfast, Co Antrim, BT9 7ET
- 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 2025
- Last confirmation statement
- 4 April 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 Belfast
Other active electrical contractors registered in Belfast.
- Sheridan Engineering Services Limited2019
- Sheridan M & E Limited2005
- Shine Renewables NI Limited2026
- Shoreline Electrical Limited2017
- SKW Electrical Contracts Ltd2026
- Solar Electrical Solution3 Ltd2024
- South Belfast Electrical Ltd2020
- Summerhill Lighting Limited2021
All electrical contractors in Belfast · All trades in Belfast · Electricians across the UK
Frequently asked questions
When are Sentor Electrical Services Ltd's accounts due?
Sentor Electrical Services Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Sentor Electrical Services Ltd'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 Sentor Electrical Services Ltd still trading?
Sentor Electrical 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 Sentor Electrical Services Ltd do?
Sentor Electrical Services Ltd is registered under Electrical installation (SIC 43210).
How old is Sentor Electrical Services Ltd?
Sentor Electrical Services Ltd was incorporated on 4 April 2005, 21 years ago.
What is the penalty if Sentor Electrical 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 Sentor Electrical 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.