- Companies
- Plumbers and heating engineers
- London
- Castro Plumbing Limited
Castro Plumbing Limited
- Company number
- 10762577
- Incorporated
- 10 May 20179 years trading
- Registered office
- 85 Bromley Road, London, SE6 2UF
- Nature of business
- Plumbing, heat and air-conditioning installation
Castro Plumbing Limited is a 9-year-old private limited company registered in London, company number 10762577, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £10K (-97.1%) on the year before, to £307.
- Net assets rose in 3 of 8 year-on-year comparisons on record.
- Current assets of £57K against £56K owed within a year: 1.0 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2018 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £307 | £57K | £56K | 2 | |
| 31 Mar 2025 | £11K | £114K | £102K | 2 | |
| 31 Mar 2024 | £28K | £116K | £85K | 2 | |
| 31 Mar 2023 | £44K | £95K | £46K | 2 | |
| 31 Mar 2022 | £71K | £116K | £39K | 2 | |
| 31 Mar 2021 | £40K | £115K | £68K | 2 | |
| 31 Mar 2020 | £5,991 | £68K | £62K | 1 | |
| 31 Mar 2019 | £11K | £77K | £67K | ||
| 31 Mar 2018 | £1,355 | £107K | £106K |
Where Castro Plumbing Limited is registered
The registered office is in London (SE6), in the Lewisham local authority area, London. Show SE6 2UF on a map.
Other trade companies in SE6
- FN Build Works LtdSpecialist contractors
- GB Roof Revive LtdPainters and decorators
- Wilson Electrical & Son LtdElectricians
- Hom22 Services LtdCleaning companies
- Above Lifestyle LimitedProperty developers
- DLS Professional Cleaning Services LtdCleaning companies
- Supremcleaning LtdCleaning companies
- Crystal Green LtdCleaning companies
What happens if Castro Plumbing 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 10762577
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 May 2017 (9 years ago)
- Registered office
- 85 Bromley Road, London, SE6 2UF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 9 May 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 London
Other active plumbing and heating companies registered in London.
- Cavalli Heating Limited2024
- Cavalli Ventilation Ltd2019
- Caytons Limited2000
- CB Boilers Ltd2022
- CC Gas Services Ltd2020
- CCC Plumbing & Heating Ltd2024
- CCH Plumbing and Heating Limited2016
- Ccool Ltd2026
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Castro Plumbing Limited's accounts due?
Castro Plumbing Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Castro Plumbing Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Castro Plumbing Limited still trading?
Castro Plumbing 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 Castro Plumbing Limited do?
Castro Plumbing Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Castro Plumbing Limited?
Castro Plumbing Limited was incorporated on 10 May 2017, 9 years ago.
What is the penalty if Castro Plumbing 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 Castro Plumbing 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.