- Companies
- Installers
- Thirsk
- Castraguard Ltd
Castraguard Ltd
- Company number
- 17025494
- Incorporated
- 10 Feb 2026
- Registered office
- 37-39 Westgate, Thirsk, YO7 1QR
- Nature of business
- Other construction installation
Castraguard Ltd is a newly incorporated private limited company registered in Thirsk, company number 17025494, one of 6 installation companies (insulation, lifts, shutters and similar) in Thirsk. Its next accounts are due at Companies House on 10 November 2027, and its first CT600 is due at HMRC on 9 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 Castraguard Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| N*** S*** | Director | Feb 2026 |
Person with significant control
Where Castraguard Ltd is registered
The registered office is in Thirsk (YO7), in the North Yorkshire local authority area, Yorkshire and The Humber. Show YO7 1QR on a map.
Other trade companies in YO7
- Lee's Tree & Garden Services LtdLandscapers and gardeners
- Task Developments (Yorkshire) LtdProperty developers
- Wrights Projects LtdProperty developers
- Addisons Plumbing and Heating LimitedPlumbers and heating engineers
- Grants Auto Centre LtdMechanics and garages
- North Star Roofing & Building LtdRoofers
- A G Turner Electrical LimitedMachinery repair and installation
- 3PT Painter and Decorator LtdPainters and decorators
Also registered at this address
2 other companies use the same registered office as Castraguard Ltd.
- McKee UPVC Window & Door Repair LimitedGlaziers
- Task Developments (Yorkshire) LtdProperty developers
What happens if Castraguard 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 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 11 Nov 2027 to 10 Dec 2027 | £150 |
| 1 to 3 months late | 11 Dec 2027 to 10 Feb 2028 | £375 |
| 3 to 6 months late | 11 Feb 2028 to 10 May 2028 | £750 |
| More than 6 months late | From 11 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
- 17025494
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 February 2026
- Registered office
- 37-39 Westgate, Thirsk, YO7 1QR
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Thirsk
Other active installation companies (insulation, lifts, shutters and similar) registered in Thirsk.
- Easton Builders (Bagby) Ltd2016
- H J Wilson Construction Ltd2026
- Highfield Equestrian Ltd2018
- Seven H Construction Limited2024
- Wespace Ltd2014
All installation companies (insulation, lifts, shutters and similar) in Thirsk · All trades in Thirsk · Installers across the UK
Frequently asked questions
When are Castraguard Ltd's accounts due?
Castraguard Ltd's next accounts are due at Companies House by 10 November 2027 (in 393 days), covering the period to 28 February 2027.
When is Castraguard 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 February 2027, due by 9 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 Castraguard Ltd still trading?
Castraguard 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 Castraguard Ltd do?
Castraguard Ltd is registered under Other construction installation (SIC 43290).
How old is Castraguard Ltd?
Castraguard Ltd was incorporated on 10 February 2026, less than a year ago.
Who runs Castraguard Ltd?
Castraguard 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 Castraguard Ltd?
One person or company has significant control of Castraguard Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Castraguard 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 Castraguard 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.