- Companies
- Electricians
- Brighton
- S.Byrne Services Limited
S.Byrne Services Limited
- Company number
- 11289356
- Incorporated
- 4 Apr 20188 years trading
- Registered office
- 1 Dukes Passage, Brighton, East Sussex, BN1 1BS
- Nature of business
- Electrical installation
S.Byrne Services Limited is a 8-year-old private limited company registered in Brighton, company number 11289356, one of 146 electrical contractors in Brighton. Its next accounts are due at Companies House on 27 December 2026, and the CT600 for the period to 27 March 2026 is due at HMRC on 27 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 down £11K on the year before, to -£9,888.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £19K against £21K owed within a year: 0.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | -£9,888 | £19K | £21K | 1 | |
| 31 Mar 2024 | £801 | £30K | £23K | 1 | |
| 31 Mar 2023 | -£17K | £4,353 | £6,028 | 1 | |
| 31 Mar 2022 | -£14K | £4,353 | £2,656 | 1 | |
| 31 Mar 2021 | -£2,286 | £22K | £11K | 1 | |
| 31 Mar 2020 | £12K | £20K | £8,195 | 1 | |
| 31 Mar 2019 | £2,676 | £11K | £8,457 | 1 |
Who runs and owns S.Byrne Services Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| S*** B*** | Director | Apr 2018 |
Person with significant control
Where S.Byrne Services Limited is registered
The registered office is in Brighton (BN1), in the Brighton and Hove local authority area, South East. Show BN1 1BS on a map.
Other trade companies in BN1
- Appliance & Home Care LtdRepair services
- Steeleagle LtdMachinery repair and installation
- C & G Energy Solutions LimitedPlumbers and heating engineers
- Ruihe Raising Property LtdProperty developers
- Davinci Building LtdSpecialist contractors
- Almore Roofing & Guttering LtdRoofers
- Neo Av LtdMachinery repair and installation
- Akoma Homes and Commercial Cleaning LtdCleaning companies
Shared registered office
43 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if S.Byrne 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 27 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Dec 2026 to 27 Jan 2027 | £150 |
| 1 to 3 months late | 28 Jan 2027 to 27 Mar 2027 | £375 |
| 3 to 6 months late | 28 Mar 2027 to 27 Jun 2027 | £750 |
| More than 6 months late | From 28 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 28 Mar 2027 | £200 |
| 3 months late | 27 Jun 2027 | another £200 |
| 6 months late | 27 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 27 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
- 11289356
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 April 2018 (8 years ago)
- Registered office
- 1 Dukes Passage, Brighton, East Sussex, BN1 1BS
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 27 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 3 April 2025
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 Brighton
Other active electrical contractors registered in Brighton.
- Saltdean Electrical Ltd2023
- Securicat Ltd2011
- Ses Systems (UK) Ltd2013
- SGC Property Maintenance (Sussex) Limited2015
- Skyelec Electrical Contractors Limited2024
- Smart Building Solutions Engineering Ltd2018
- South Coast Electrical Services Limited2007
- Spark Electric Limited2016
All electrical contractors in Brighton · All trades in Brighton · Electricians across the UK
Frequently asked questions
When are S.Byrne Services Limited's accounts due?
S.Byrne Services Limited's next accounts are due at Companies House by 27 December 2026 (in 75 days), covering the period to 27 March 2026.
When is S.Byrne Services Limited's CT600 due?
The CT600 for the period to 27 March 2026 is due at HMRC by 27 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 28 December 2026.
Is S.Byrne Services Limited still trading?
S.Byrne Services Limited is listed as active on the Companies House register (checked 13 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 S.Byrne Services Limited do?
S.Byrne Services Limited is registered under Electrical installation (SIC 43210).
How old is S.Byrne Services Limited?
S.Byrne Services Limited was incorporated on 4 April 2018, 8 years ago.
Who runs S.Byrne Services Limited?
S.Byrne Services Limited has 1 active director, the longest-serving appointed in Apr 2018. Their names and service addresses are on the Companies House register.
Who owns S.Byrne Services Limited?
One person or company has significant control of S.Byrne Services Limited: an individual (owns 75% or more of the shares).
What is the penalty if S.Byrne 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 S.Byrne Services Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.