- Companies
- Plumbers and heating engineers
- Edinburgh
- Castle Rock Plumbing, Heating and Renewables Ltd
Castle Rock Plumbing, Heating and Renewables Ltd
- Company number
- SC893318
- Incorporated
- 18 Jun 2026
- Registered office
- 6 Dreghorn Drive, Edinburgh, EH13 9NX
- Nature of business
- Plumbing, heat and air-conditioning installation
Castle Rock Plumbing, Heating and Renewables Ltd is a newly incorporated private limited company registered in Edinburgh, company number SC893318, one of 176 plumbing and heating companies in Edinburgh. Its next accounts are due at Companies House on 18 March 2028, and its first CT600 is due at HMRC on 17 June 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.
Is this your company?
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Where Castle Rock Plumbing, Heating and Renewables Ltd is registered
The registered office is in Edinburgh (EH13), in the City of Edinburgh local authority area, Scotland. Show EH13 9NX on a map.
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- Do Cleaning Edinburgh LimitedCleaning companies
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- Weddell Group LtdProperty developers
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- All Very Handy LtdSpecialist contractors
What happens if Castle Rock Plumbing, Heating and Renewables 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 18 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 19 Mar 2028 to 18 Apr 2028 | £150 |
| 1 to 3 months late | 19 Apr 2028 to 18 Jun 2028 | £375 |
| 3 to 6 months late | 19 Jun 2028 to 18 Sep 2028 | £750 |
| More than 6 months late | From 19 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- SC893318
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 June 2026
- Registered office
- 6 Dreghorn Drive, Edinburgh, EH13 9NX
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (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 Edinburgh
Other active plumbing and heating companies registered in Edinburgh.
- Celsius Plumbing & Heating (Edinburgh) Ltd2011
- Central Energy Services (Edinburgh) Limited2019
- Central Refrigeration Finance Limited1968
- CGC Ventures Ltd2025
- Chaps Heating & Plumbing Limited2012
- Commercial Temperature Solutions Ltd2013
- Conan Sharman - Plumbing & Drain Cleaning Ltd2017
- Contract Heating Limited2002
All plumbing and heating companies in Edinburgh · All trades in Edinburgh · Plumbers and heating engineers across the UK
Frequently asked questions
When are Castle Rock Plumbing, Heating and Renewables Ltd's accounts due?
Castle Rock Plumbing, Heating and Renewables Ltd's next accounts are due at Companies House by 18 March 2028 (in 522 days), covering the period to 30 June 2027.
When is Castle Rock Plumbing, Heating and Renewables 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 17 June 2027, due by 17 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Castle Rock Plumbing, Heating and Renewables Ltd still trading?
Castle Rock Plumbing, Heating and Renewables 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 Castle Rock Plumbing, Heating and Renewables Ltd do?
Castle Rock Plumbing, Heating and Renewables Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Castle Rock Plumbing, Heating and Renewables Ltd?
Castle Rock Plumbing, Heating and Renewables Ltd was incorporated on 18 June 2026, less than a year ago.
What is the penalty if Castle Rock Plumbing, Heating and Renewables 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 Castle Rock Plumbing, Heating and Renewables 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.