- Companies
- Electricians
- Leigh-on-Sea
- BLW Southeast Ltd
BLW Southeast Ltd
- Company number
- 15148688
- Incorporated
- 19 Sep 20233 years trading
- Registered office
- Top Floor, 10 the Broadway, Leigh-on-Sea, Essex, SS9 1AW
- Nature of business
- Electrical installation
BLW Southeast Ltd is a 3-year-old private limited company registered in Leigh-on-Sea, company number 15148688, one of 115 electrical contractors in Leigh-on-Sea. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 unchanged on the year before, at £8,253.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £8,253 | £176 | £1,923 | 1 | |
| 30 Sep 2024 | £8,253 | £176 | £1,923 | 1 |
Where BLW Southeast Ltd is registered
The registered office is in Leigh-on-Sea (SS9), in the Southend-on-Sea local authority area, East of England. Show SS9 1AW on a map.
Other trade companies in SS9
- Cheap Locksmith Essex LtdRepair services
- Alexander Hall Real Estate LtdProperty developers
- Britannia Roofing & Dampproofing LtdRoofers
- Elite Build & Co (Essex) LtdBuilders
- High Lift Scaffold LimitedScaffolders
- Hill's Plumbing, Heating & Gas LtdPlumbers and heating engineers
- MTS Piling LimitedSpecialist contractors
- Install & Transport LimitedMachinery repair and installation
Shared registered office
208 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 BLW Southeast 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 15148688
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 September 2023 (3 years ago)
- Registered office
- Top Floor, 10 the Broadway, Leigh-on-Sea, Essex, SS9 1AW
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 18 September 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 Leigh-on-Sea
Other active electrical contractors registered in Leigh-on-Sea.
- Brakespark Limited2022
- Brian Curtis Limited2003
- Brightside Renewables Ltd2023
- Clifford Electrics Limited2012
- Core Fsi Ltd2024
- Costy's Electrical Services Ltd2019
- Crandon (M & E) Limited2008
- D S Electrical Essex Limited2022
All electrical contractors in Leigh-on-Sea · All trades in Leigh-on-Sea · Electricians across the UK
Frequently asked questions
When are BLW Southeast Ltd's accounts due?
BLW Southeast Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is BLW Southeast Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is BLW Southeast Ltd still trading?
BLW Southeast Ltd 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 BLW Southeast Ltd do?
BLW Southeast Ltd is registered under Electrical installation (SIC 43210).
How old is BLW Southeast Ltd?
BLW Southeast Ltd was incorporated on 19 September 2023, 3 years ago.
What is the penalty if BLW Southeast 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 BLW Southeast Ltd 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.