- Companies
- Plumbers and heating engineers
- Sheffield
- Castle Building Services (South Yorkshire) Limited
Castle Building Services (South Yorkshire) Limited
- Company number
- 08480467
- Incorporated
- 9 Apr 201313 years trading
- Registered office
- 1 the Drive, Sheffield, S6 4AL
- Nature of business
- Plumbing, heat and air-conditioning installation; Other construction installation; Other building completion and finishing
Castle Building Services (South Yorkshire) Limited is a 13-year-old private limited company registered in Sheffield, company number 08480467, one of 305 plumbing and heating companies in Sheffield. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £7,476 (-48.3%) on the year before, to £8,014.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £52K against £66K owed within a year: 0.8 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £8,014 | £50K | £52K | £66K | 2 |
| 30 Apr 2024 | £15K | £58K | £75K | £87K | 1 |
| 30 Apr 2023 | £14K | £36K | £56K | £47K | 1 |
| 30 Apr 2022 | £37K | £52K | £116K | £84K | 1 |
| 30 Apr 2021 | £25K | £133K | £381K | £355K | 3 |
| 31 Jul 2020 | £98K | £91K | £207K | £111K | 3 |
| 31 Jul 2019 | £16K | £98K | £334K | £320K | 4 |
| 31 Jul 2018 | £21K | £40K | £186K | £168K | 4 |
| 31 Jul 2017 | £3,324 | £38K | £185K | £185K | 4 |
| 31 Jul 2016 | £5,622 | £16K | £234K | £230K |
Where Castle Building Services (South Yorkshire) Limited is registered
The registered office is in Sheffield (S6), in the Sheffield local authority area, Yorkshire and The Humber. Show S6 4AL on a map.
Other trade companies in S6
- D2 Plumbing & Heating LtdPlumbers and heating engineers
- M&G Landscapes & Driveways LtdLandscapers and gardeners
- J&S Contractors LimitedLandscapers and gardeners
- Supreme Hand Car Wash LtdCleaning companies
- Wooden Goose Joinery LtdJoiners and carpenters
- Southyorkshire Rewires and Renewables LtdBuilders
- LVT Flooring Sales LtdFloor and wall tilers
- JMG Windows LtdJoiners and carpenters
What happens if Castle Building Services (South Yorkshire) 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 31 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 08480467
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 April 2013 (13 years ago)
- Registered office
- 1 the Drive, Sheffield, S6 4AL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390) - Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 9 April 2026
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 Sheffield
Other active plumbing and heating companies registered in Sheffield.
- CC Plumbing & Heating (South Yorkshire) Ltd2021
- Chambers Ventilation Services Limited2025
- Chapeltown Gas Services Limited2002
- Chaps Plumbing and Heating Services Ltd2019
- Christopher Short Limited2006
- Clearwater Industries Limited2005
- Clearwater Plumbing & Heating (South Yorkshire) Limited2006
- Clima Heating Services Limited2015
All plumbing and heating companies in Sheffield · All trades in Sheffield · Plumbers and heating engineers across the UK
Frequently asked questions
When are Castle Building Services (South Yorkshire) Limited's accounts due?
Castle Building Services (South Yorkshire) Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Castle Building Services (South Yorkshire) Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Castle Building Services (South Yorkshire) Limited still trading?
Castle Building Services (South Yorkshire) 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 Castle Building Services (South Yorkshire) Limited do?
Castle Building Services (South Yorkshire) Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390).
How old is Castle Building Services (South Yorkshire) Limited?
Castle Building Services (South Yorkshire) Limited was incorporated on 9 April 2013, 13 years ago.
What is the penalty if Castle Building Services (South Yorkshire) 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 Castle Building Services (South Yorkshire) 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.