- Companies
- Installers
- Glasgow
- Castleton Contracts Limited
Castleton Contracts Limited
- Company number
- SC898507
- Incorporated
- 8 Aug 2026
- Registered office
- 14F Castleton Court Castleton Drive, Newton Mearns, Glasgow, G77 5JU
- Nature of business
- Other construction installation
Castleton Contracts Limited is a newly incorporated private limited company registered in Glasgow, company number SC898507, one of 331 installation companies (insulation, lifts, shutters and similar) in Glasgow. Its next accounts are due at Companies House on 8 May 2028, and its first CT600 is due at HMRC on 7 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.
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Where Castleton Contracts Limited is registered
The registered office is in Glasgow (G77), in the East Renfrewshire local authority area, Scotland. Show G77 5JU on a map.
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What happens if Castleton Contracts Limited 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 May 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 9 May 2028 to 8 Jun 2028 | £150 |
| 1 to 3 months late | 9 Jun 2028 to 8 Aug 2028 | £375 |
| 3 to 6 months late | 9 Aug 2028 to 8 Nov 2028 | £750 |
| More than 6 months late | From 9 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
- SC898507
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 August 2026
- Registered office
- 14F Castleton Court Castleton Drive, Newton Mearns, Glasgow, G77 5JU
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 August (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 Glasgow
Other active installation companies (insulation, lifts, shutters and similar) registered in Glasgow.
- Caucasia Padel UK Ltd2026
- CBS Kitchens & Bathrooms Ltd.2012
- CDF Mechanical Ltd2026
- Chris Ritchie Installations Limited2015
- City Health Clinic Edinburgh Limited1998
- Cja Property Maintenance Ltd2021
- Clyde Valley Maintenance and Renovation Ltd2026
- CN Thermal Solutions Ltd2025
All installation companies (insulation, lifts, shutters and similar) in Glasgow · All trades in Glasgow · Installers across the UK
Frequently asked questions
When are Castleton Contracts Limited's accounts due?
Castleton Contracts Limited's next accounts are due at Companies House by 8 May 2028 (in 574 days), covering the period to 31 August 2027.
When is Castleton Contracts Limited'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 August 2027, due by 7 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 Castleton Contracts Limited still trading?
Castleton Contracts Limited 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 Castleton Contracts Limited do?
Castleton Contracts Limited is registered under Other construction installation (SIC 43290).
How old is Castleton Contracts Limited?
Castleton Contracts Limited was incorporated on 8 August 2026, less than a year ago.
What is the penalty if Castleton Contracts Limited 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 Castleton Contracts Limited 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.