- Companies
- Plumbers and heating engineers
- London
- Supreme Plumbing and Heating Ltd
Supreme Plumbing and Heating Ltd
- Company number
- 12299340
- Incorporated
- 5 Nov 20196 years trading
- Registered office
- 70 Bounces Road, London, N9 8JS
- Nature of business
- Plumbing, heat and air-conditioning installation
Supreme Plumbing and Heating Ltd is a 6-year-old private limited company registered in London, company number 12299340, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 23 April 2027, and the CT600 for the period to 23 July 2026 is due at HMRC on 23 July 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 up £5,999 on the year before, to £6,041.
- Net assets rose in 1 of 5 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £6,041 | £11K | £4,553 | 0 | |
| 31 Jul 2024 | £42 | £2,095 | £2,053 | 0 | |
| 31 Jul 2023 | £61 | £7,440 | £7,379 | 0 | |
| 31 Jul 2022 | £100 | £800 | £700 | 0 | |
| 30 Nov 2021 | £100 | ||||
| 30 Nov 2020 | £100 |
Who runs and owns Supreme Plumbing and Heating Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| A*** H*** | Director | Nov 2019 |
Person with significant control
Where Supreme Plumbing and Heating Ltd is registered
The registered office is in London (N9), in the Enfield local authority area, London. Show N9 8JS on a map.
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- Charlie Valentin LtdCleaning companies
Shared registered office
98 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Supreme Plumbing and Heating 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 23 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 24 Apr 2027 to 23 May 2027 | £150 |
| 1 to 3 months late | 24 May 2027 to 23 Jul 2027 | £375 |
| 3 to 6 months late | 24 Jul 2027 to 23 Oct 2027 | £750 |
| More than 6 months late | From 24 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 24 Jul 2027 | £200 |
| 3 months late | 23 Oct 2027 | another £200 |
| 6 months late | 23 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 23 Jul 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
- 12299340
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 November 2019 (6 years ago)
- Registered office
- 70 Bounces Road, London, N9 8JS
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 23 July (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 4 November 2025
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.
- Supreme Plumbing Service Ltd2026
- Sureheat (UK) Limited2014
- Sureheat Services Limited2025
- Surrey Cooling Co Ltd2026
- SV Air Conditioning Ltd2026
- SV Air Cool Limited2026
- SW19 Plumber Ltd2024
- Sweethome Plumbing & Heating Limited2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Supreme Plumbing and Heating Ltd's accounts due?
Supreme Plumbing and Heating Ltd's next accounts are due at Companies House by 23 April 2027 (in 192 days), covering the period to 23 July 2026.
When is Supreme Plumbing and Heating Ltd's CT600 due?
The CT600 for the period to 23 July 2026 is due at HMRC by 23 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 24 April 2027.
Is Supreme Plumbing and Heating Ltd still trading?
Supreme Plumbing and Heating 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 Supreme Plumbing and Heating Ltd do?
Supreme Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Supreme Plumbing and Heating Ltd?
Supreme Plumbing and Heating Ltd was incorporated on 5 November 2019, 6 years ago.
Who runs Supreme Plumbing and Heating Ltd?
Supreme Plumbing and Heating Ltd has 1 active director, the longest-serving appointed in Nov 2019. Their names and service addresses are on the Companies House register.
Who owns Supreme Plumbing and Heating Ltd?
One person or company has significant control of Supreme Plumbing and Heating Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Supreme Plumbing and Heating 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 Supreme Plumbing and Heating 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.