- Companies
- Electricians
- Leigh-on-Sea
- Costy's Electrical Services Ltd
Costy's Electrical Services Ltd
- Company number
- 12031954
- Incorporated
- 4 Jun 20197 years trading
- Registered office
- Top Floor, 10 the Broadway, Leigh-on-Sea, Essex, SS9 1AW
- Nature of business
- Electrical installation
Costy's Electrical Services Ltd is a 7-year-old private limited company registered in Leigh-on-Sea, company number 12031954, one of 115 electrical contractors in Leigh-on-Sea. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £5,096 (+55.4%) on the year before, to £14K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £17K against £2,669 owed within a year: 6.4 times cover.
- 2 employees on average, up from 0 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £14K | £8,129 | £17K | £2,669 | 2 |
| 30 Jun 2024 | £9,197 | £2,884 | £13K | £3,354 | 0 |
| 30 Jun 2023 | £6,304 | £8,380 | £8,380 | £3,126 | 0 |
| 30 Jun 2022 | £11K | £3,920 | £9,418 | £2,025 | 0 |
| 30 Jun 2021 | £11K | £3,920 | £9,418 | £2,025 | 0 |
| 30 Jun 2020 | £9,053 | £8,140 | £9,660 | £4,807 | 1 |
Where Costy's Electrical Services 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 Costy's 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 12031954
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 June 2019 (7 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 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 21 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 Leigh-on-Sea
Other active electrical contractors registered in Leigh-on-Sea.
- Crandon (M & E) Limited2008
- D S Electrical Essex Limited2022
- D. Kirk Electrical Services Limited2022
- Danelektro Ltd2015
- Daniel Harveys (UK) Ltd2015
- David Wilkin Electrical Limited2015
- Direct Power Ltd2018
- DJB Electrical & Testing Ltd2026
All electrical contractors in Leigh-on-Sea · All trades in Leigh-on-Sea · Electricians across the UK
Frequently asked questions
When are Costy's Electrical Services Ltd's accounts due?
Costy's Electrical Services Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Costy's Electrical Services Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Costy's Electrical Services Ltd still trading?
Costy's 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 Costy's Electrical Services Ltd do?
Costy's Electrical Services Ltd is registered under Electrical installation (SIC 43210).
How old is Costy's Electrical Services Ltd?
Costy's Electrical Services Ltd was incorporated on 4 June 2019, 7 years ago.
What is the penalty if Costy's 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 Costy's 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.