- Companies
- Specialist contractors
- London
- Firetronik Ltd
Firetronik Ltd
- Company number
- 06921202
- Incorporated
- 2 Jun 200917 years trading
- Registered office
- 5 Bayston Road, Bayston Road, London, N16 7LU
- Nature of business
- Other specialised construction activities n.e.c.
Firetronik Ltd is a 17-year-old private limited company registered in London, company number 06921202, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £10K (+27.1%) on the year before, to £48K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £91K against £53K owed within a year: 1.7 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £48K | £53K | £91K | £53K | 4 |
| 31 Mar 2024 | £37K | £38K | £70K | £40K | 4 |
| 5 Apr 2023 | £35K | £55K | £72K | £37K | 2 |
| 5 Apr 2022 | £22K | £29K | £62K | £40K | 1 |
| 5 Apr 2021 | £10 | £14K | £32K | £32K | 1 |
| 5 Apr 2020 | £10 | £12K | £33K | £33K | 1 |
| 5 Apr 2019 | £9,397 | £5,410 | £16K | £6,826 | |
| 5 Apr 2018 | £16K | £2,408 | £24K | £8,365 | |
| 5 Apr 2017 | £21K | £4,225 | £29K | £8,077 | |
| 5 Apr 2016 | £16K | £1,308 | £22K | £5,254 |
Where Firetronik Ltd is registered
The registered office is in London (N16), in the Hackney local authority area, London. Show N16 7LU on a map.
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What happens if Firetronik 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 06921202
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 June 2009 (17 years ago)
- Registered office
- 5 Bayston Road, Bayston Road, London, N16 7LU
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 26 March 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- Firma Aj Limited2025
- First Call Constructions Ltd2025
- First Int. Project Limited2014
- First Point Services Ltd2018
- First Renewable Developments Limited2011
- Firstfix Property Maintenance Ltd2024
- Fiscal Pay Limited2025
- Fitfix UK Ltd2023
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Firetronik Ltd's accounts due?
Firetronik Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Firetronik Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Firetronik Ltd still trading?
Firetronik 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 Firetronik Ltd do?
Firetronik Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Firetronik Ltd?
Firetronik Ltd was incorporated on 2 June 2009, 17 years ago.
What is the penalty if Firetronik 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 Firetronik 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.