- Companies
- Electricians
- Middlesbrough
- Castleton Electrical Ltd
Castleton Electrical Ltd
- Company number
- 15170058
- Incorporated
- 27 Sep 20233 years trading
- Registered office
- 3 Castleton Road, Castleton Road, Middlesbrough, TS6 8AU
- Nature of business
- Electrical installation; Other specialised construction activities n.e.c.
Castleton Electrical Ltd is a 3-year-old private limited company registered in Middlesbrough, company number 15170058, one of 145 electrical contractors in Middlesbrough. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £6,846 (-69.6%) on the year before, to £2,986.
- Current assets of £128 against £3,358 owed within a year: 0.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £2,986 | £128 | £3,358 | 1 | |
| 30 Sep 2024 | £9,832 | £9,522 | £310 | 1 | |
| 30 Sep 2023 | £0 | £0 | £0 | 0 |
Where Castleton Electrical Ltd is registered
The registered office is in Middlesbrough (TS6), in the Redcar and Cleveland local authority area, North East. Show TS6 8AU on a map.
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What happens if Castleton Electrical 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 15170058
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 September 2023 (3 years ago)
- Registered office
- 3 Castleton Road, Castleton Road, Middlesbrough, TS6 8AU
- Nature of business
- Electrical installation (SIC 43210)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 26 September 2026
- Previous names
- Att Contracting Services Limited (until 29 Oct 2024)
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 Middlesbrough
Other active electrical contractors registered in Middlesbrough.
- CB E&I Engineering Solutions Limited2026
- Cces Electrical Services Limited2020
- CG Walker High Voltage Ltd2024
- Cheesebrough Electrical Services Limited2007
- CJH Wind Solutions Ltd2025
- Corbyn Elec Ltd2020
- Corners Electrical Limited2005
- CR Electrics (North East) Ltd2018
All electrical contractors in Middlesbrough · All trades in Middlesbrough · Electricians across the UK
Frequently asked questions
When are Castleton Electrical Ltd's accounts due?
Castleton Electrical Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Castleton Electrical Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Castleton Electrical Ltd still trading?
Castleton Electrical 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 Castleton Electrical Ltd do?
Castleton Electrical Ltd is registered under Electrical installation (SIC 43210); Other specialised construction activities n.e.c. (SIC 43999).
How old is Castleton Electrical Ltd?
Castleton Electrical Ltd was incorporated on 27 September 2023, 3 years ago.
What is the penalty if Castleton Electrical 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 Castleton Electrical 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.