- Companies
- Plumbers and heating engineers
- London
- Fire Knight Ltd
Fire Knight Ltd
- Company number
- 17019077
- Incorporated
- 8 Feb 2026
- Registered office
- 167-169 Great Portland Street, 5TH Floor, London, W1W 5PF
- Nature of business
- Plumbing, heat and air-conditioning installation; Other construction installation; Other specialised construction activities n.e.c.
Fire Knight Ltd is a newly incorporated private limited company registered in London, company number 17019077, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 8 November 2027, and its first CT600 is due at HMRC on 7 February 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.
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Who runs and owns Fire Knight Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| B*** K*** | Director | Feb 2026 |
Person with significant control
Where Fire Knight Ltd is registered
The registered office is in London (W1W), in the Westminster local authority area, London. Show W1W 5PF on a map.
Other trade companies in W1W
- Civaris LtdSpecialist contractors
- R&R Construction Group LtdBuilders
- Aurum Cooling LtdPlumbers and heating engineers
- Steam Wood Stone LtdFinishing trades
- Hau Developments LimitedProperty developers
- Group Atlas Financial 83 LtdPainters and decorators
- Energy Reward LtdMotor traders
- Holly’S Housekeeping LtdCleaning companies
Shared registered office
1,494 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 Fire Knight 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 8 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 9 Nov 2027 to 8 Dec 2027 | £150 |
| 1 to 3 months late | 9 Dec 2027 to 8 Feb 2028 | £375 |
| 3 to 6 months late | 9 Feb 2028 to 8 May 2028 | £750 |
| More than 6 months late | From 9 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 17019077
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 February 2026
- Registered office
- 167-169 Great Portland Street, 5TH Floor, London, W1W 5PF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in London
Other active plumbing and heating companies registered in London.
- First Second Fix Ltd2026
- First to First Ltd2016
- Firstclarke Heating & Plumbing Ltd2022
- Fitz Plumbing and Heating Services Ltd2015
- Fix 24 Maintenance Ltd2026
- Fix Force 247 Ltd2025
- Fixcrew Services Limited2026
- Fixed Fee Leak Detection Ltd2019
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Fire Knight Ltd's accounts due?
Fire Knight Ltd's next accounts are due at Companies House by 8 November 2027 (in 392 days), covering the period to 28 February 2027.
When is Fire Knight 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 7 February 2027, due by 7 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Fire Knight Ltd still trading?
Fire Knight 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 Fire Knight Ltd do?
Fire Knight Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290); Other specialised construction activities n.e.c. (SIC 43999).
How old is Fire Knight Ltd?
Fire Knight Ltd was incorporated on 8 February 2026, less than a year ago.
Who runs Fire Knight Ltd?
Fire Knight Ltd has 1 active director, the longest-serving appointed in Feb 2026. Their names and service addresses are on the Companies House register.
Who owns Fire Knight Ltd?
One person or company has significant control of Fire Knight Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Fire Knight 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 Fire Knight 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.