- Companies
- Plumbers and heating engineers
- Tonbridge
- Hydro Heating South Limited
Hydro Heating South Limited
- Company number
- 13438793
- Incorporated
- 4 Jun 20215 years trading
- Registered office
- 23 Little Field, Staplehurst, Tonbridge, TN12 0SZ
- Nature of business
- Plumbing, heat and air-conditioning installation
Hydro Heating South Limited is a 5-year-old private limited company registered in Tonbridge, company number 13438793, one of 46 plumbing and heating companies in Tonbridge. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £10K (-68%) on the year before, to £4,867.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £13K against £20K owed within a year: 0.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £4,867 | £13K | £20K | 0 | |
| 30 Jun 2024 | £15K | £7,449 | £1 | 0 | |
| 30 Jun 2023 | £100 | ||||
| 30 Jun 2022 | £100 |
Where Hydro Heating South Limited is registered
The registered office is in Tonbridge (TN12), in the Maidstone local authority area, South East. Show TN12 0SZ on a map.
Other trade companies in TN12
- CJS Commercials LtdMechanics and garages
- Finkis LimitedProperty developers
- Brake Thru LtdMechanics and garages
- Lspmk UK LtdPlumbers and heating engineers
- Cherry Tree Glazing LtdGlaziers
- Sole Performance LtdElectricians
- Heaven Scent Housekeeping LtdCleaning companies
- Cover IT Building LtdBuilders
What happens if Hydro Heating South 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 13438793
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 June 2021 (5 years ago)
- Registered office
- 23 Little Field, Staplehurst, Tonbridge, TN12 0SZ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 21 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 Tonbridge
Other active plumbing and heating companies registered in Tonbridge.
- Innovations Heating and Electrical Ltd2020
- Invicta Heating Ltd2020
- Jet Heating Ltd2021
- Joseph Plumbing Limited2021
- K-Air Ltd2026
- Kent Oil Heating Services Limited2026
- Kentish Plumbers Ltd2019
- L C Wakeman Limited2013
All plumbing and heating companies in Tonbridge · All trades in Tonbridge · Plumbers and heating engineers across the UK
Frequently asked questions
When are Hydro Heating South Limited's accounts due?
Hydro Heating South Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Hydro Heating South Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Hydro Heating South Limited still trading?
Hydro Heating South 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 Hydro Heating South Limited do?
Hydro Heating South Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Hydro Heating South Limited?
Hydro Heating South Limited was incorporated on 4 June 2021, 5 years ago.
What is the penalty if Hydro Heating South 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 Hydro Heating South 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.