- Companies
- Electricians
- Rotherham
- Armatek Ltd
Armatek Ltd
- Company number
- 15240249
- Incorporated
- 27 Oct 20232 years trading
- Registered office
- 39 Kingsbrook Chase, Wath-Upon-Dearne, Rotherham, S63 7FG
- Nature of business
- Electrical installation
Armatek Ltd is a 2-year-old private limited company registered in Rotherham, company number 15240249, one of 150 electrical contractors in Rotherham. Its next accounts are due at Companies House on 5 January 2027, and the CT600 for the period to 5 April 2026 is due at HMRC on 5 April 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Armatek Ltd is registered
The registered office is in Rotherham (S63), in the Rotherham local authority area, Yorkshire and The Humber. Show S63 7FG on a map.
Other trade companies in S63
- Birdwell Motor Company LtdMotor traders
- Propel Service Group LtdCleaning companies
- Nuttall Heavy Engineering LtdMechanics and garages
- Ink Joinery LimitedJoiners and carpenters
- SWJL Services LtdElectricians
- Form. Landscaping LtdFinishing trades
- Goodwin Roofing Specialists LtdRoofers
- At Capital Developments LtdBuilders
What happens if Armatek 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 5 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 6 Jan 2027 to 5 Feb 2027 | £150 |
| 1 to 3 months late | 6 Feb 2027 to 5 Apr 2027 | £375 |
| 3 to 6 months late | 6 Apr 2027 to 5 Jul 2027 | £750 |
| More than 6 months late | From 6 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 6 Apr 2027 | £200 |
| 3 months late | 5 Jul 2027 | another £200 |
| 6 months late | 5 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 5 Apr 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
- 15240249
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 October 2023 (2 years ago)
- Registered office
- 39 Kingsbrook Chase, Wath-Upon-Dearne, Rotherham, S63 7FG
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 5 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 5 April 2025
- Last confirmation statement
- 26 October 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 Rotherham
Other active electrical contractors registered in Rotherham.
- Aselectrical22 Ltd2023
- Ash Electrical Services Limited2023
- Ashe Electrical Contractors Ltd2020
- Ba Executive Ltd2015
- Baldwin's Electrical & Security Limited2018
- BK Spark (Electrical Services) Ltd2024
- Blake Electrical Contractors Ltd2023
- BMC Electrical Ltd2016
All electrical contractors in Rotherham · All trades in Rotherham · Electricians across the UK
Frequently asked questions
When are Armatek Ltd's accounts due?
Armatek Ltd's next accounts are due at Companies House by 5 January 2027 (in 85 days), covering the period to 5 April 2026.
When is Armatek Ltd's CT600 due?
The CT600 for the period to 5 April 2026 is due at HMRC by 5 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 6 January 2027.
Is Armatek Ltd still trading?
Armatek 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 Armatek Ltd do?
Armatek Ltd is registered under Electrical installation (SIC 43210).
How old is Armatek Ltd?
Armatek Ltd was incorporated on 27 October 2023, 2 years ago.
What is the penalty if Armatek 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 Armatek 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.