- Companies
- Electricians
- Oldham
- Costello Electrical Installations Ltd
Costello Electrical Installations Ltd
- Company number
- 17390354
- Incorporated
- 10 Aug 2026
- Registered office
- 815 Hollins Road, Oldham, OL8 3PN
- Nature of business
- Electrical installation
Costello Electrical Installations Ltd is a newly incorporated private limited company registered in Oldham, company number 17390354, one of 147 electrical contractors in Oldham. Its next accounts are due at Companies House on 10 May 2028, and its first CT600 is due at HMRC on 9 August 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Costello Electrical Installations Ltd is registered
The registered office is in Oldham (OL8), in the Oldham local authority area, North West. Show OL8 3PN on a map.
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- Luxe Auto Manchester LtdMotor traders
- Switchlive Electrical (NW) LtdElectricians
- Motors for Less MCR LtdMotor traders
- Pxrity LtdMechanics and garages
What happens if Costello Electrical Installations 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 10 May 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 11 May 2028 to 10 Jun 2028 | £150 |
| 1 to 3 months late | 11 Jun 2028 to 10 Aug 2028 | £375 |
| 3 to 6 months late | 11 Aug 2028 to 10 Nov 2028 | £750 |
| More than 6 months late | From 11 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2028 | £200 |
| 3 months late | 30 Nov 2028 | another £200 |
| 6 months late | 28 Feb 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2029 | 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
- 17390354
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 August 2026
- Registered office
- 815 Hollins Road, Oldham, OL8 3PN
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
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 Oldham
Other active electrical contractors registered in Oldham.
- D & N Electrical Ltd2011
- D C Heating Limited2002
- D. Maders Electrical Ltd2003
- Datastream Communications Limited2003
- DB Energy Group Ltd2022
- DC Electrical (Northwest) Limited2013
- DC Electrical Oldham Limited2014
- DK Noble Electrical Ltd2026
All electrical contractors in Oldham · All trades in Oldham · Electricians across the UK
Frequently asked questions
When are Costello Electrical Installations Ltd's accounts due?
Costello Electrical Installations Ltd's next accounts are due at Companies House by 10 May 2028 (in 575 days), covering the period to 31 August 2027.
When is Costello Electrical Installations Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 9 August 2027, due by 9 August 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Costello Electrical Installations Ltd still trading?
Costello Electrical Installations 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 Costello Electrical Installations Ltd do?
Costello Electrical Installations Ltd is registered under Electrical installation (SIC 43210).
How old is Costello Electrical Installations Ltd?
Costello Electrical Installations Ltd was incorporated on 10 August 2026, less than a year ago.
What is the penalty if Costello Electrical Installations 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 Costello Electrical Installations 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.