- Companies
- Plumbers and heating engineers
- London
- Hydrology Plumbing and Heating Limited
Hydrology Plumbing and Heating Limited
- Company number
- 11196357
- Incorporated
- 8 Feb 20188 years trading
- Registered office
- 55 55 Princes Gate,, Exhibition Road, London, County (Optional), SW7 2PN
- Nature of business
- Plumbing, heat and air-conditioning installation
Hydrology Plumbing and Heating Limited is a 8-year-old private limited company registered in London, company number 11196357, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 unchanged on the year before, at £2,609.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £5,759 against £6,908 owed within a year: 0.8 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £2,609 | £5,759 | £6,908 | 0 | |
| 28 Feb 2024 | £2,609 | £5,759 | £6,908 | 0 | |
| 28 Feb 2023 | £100 | £100 | |||
| 28 Feb 2022 | £100 | £100 | |||
| 28 Feb 2021 | £2,609 | £5,759 | £6,908 | 2 | |
| 28 Feb 2020 | £1,020 | £5,605 | £1,514 | 2 | |
| 28 Feb 2019 | £295 | £11K | £1,690 |
Where Hydrology Plumbing and Heating Limited is registered
The registered office is in London (SW7), in the Westminster local authority area, London. Show SW7 2PN on a map.
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- Ashcombe Projects LtdBuilders
- WM Shelfco5 LimitedProperty developers
- Platinum Electrical Systems LimitedElectricians
- Vertex Finishes LtdFinishing trades
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What happens if Hydrology Plumbing and Heating 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11196357
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 February 2018 (8 years ago)
- Registered office
- 55 55 Princes Gate,, Exhibition Road, London, County (Optional), SW7 2PN
- 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 2025
- Last confirmation statement
- 7 February 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.
- Hydronic-Heating Ltd2017
- Hydrox Energy Ltd2026
- Hyland Plumbing Ltd2010
- I Need A Plumber Ltd2004
- I S Roberts Electrical Limited2014
- I Star Maintenance Ltd2016
- I-M Homepro Ltd2016
- I.A.C.R. Ltd2005
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Hydrology Plumbing and Heating Limited's accounts due?
Hydrology Plumbing and Heating Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Hydrology Plumbing and Heating Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Hydrology Plumbing and Heating Limited still trading?
Hydrology Plumbing and Heating 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 Hydrology Plumbing and Heating Limited do?
Hydrology Plumbing and Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Hydrology Plumbing and Heating Limited?
Hydrology Plumbing and Heating Limited was incorporated on 8 February 2018, 8 years ago.
What is the penalty if Hydrology Plumbing and Heating 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 Hydrology Plumbing and Heating 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.