- Companies
- Installers
- Thorne Rainwater Systems Limited
Thorne Rainwater Systems Limited
- Company number
- 04301342
- Incorporated
- 9 Oct 200125 years trading
- Registered office
- 2 Dan Y Graig Works, Dan Y Graig Road, Risca, NP11 6DP
- Nature of business
- Other construction installation
Thorne Rainwater Systems Limited is a 25-year-old private limited company registered in Risca, company number 04301342, one of the UK's installation companies (insulation, lifts, shutters and similar). Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Thorne Rainwater Systems Limited is registered
The registered office is in Risca (NP11), in the Caerphilly local authority area, Wales. Show NP11 6DP on a map.
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What happens if Thorne Rainwater Systems 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 04301342
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 October 2001 (25 years ago)
- Registered office
- 2 Dan Y Graig Works, Dan Y Graig Road, Risca, NP11 6DP
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 4 December 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
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
Other active installation companies (insulation, lifts, shutters and similar).
Frequently asked questions
When are Thorne Rainwater Systems Limited's accounts due?
Thorne Rainwater Systems Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Thorne Rainwater Systems Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Thorne Rainwater Systems Limited still trading?
Thorne Rainwater Systems 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 Thorne Rainwater Systems Limited do?
Thorne Rainwater Systems Limited is registered under Other construction installation (SIC 43290).
How old is Thorne Rainwater Systems Limited?
Thorne Rainwater Systems Limited was incorporated on 9 October 2001, 25 years ago.
What is the penalty if Thorne Rainwater Systems 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 Thorne Rainwater Systems 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.