- Companies
- Plumbers and heating engineers
- Swansea
- Flush H2O Ltd
Flush H2O Ltd
- Company number
- 13923271
- Incorporated
- 17 Feb 20224 years trading
- Registered office
- 60 Llanllienwen Close, Ynysforgan, Swansea, SA6 6LY
- Nature of business
- Plumbing, heat and air-conditioning installation
Flush H2O Ltd is a 4-year-old private limited company registered in Swansea, company number 13923271, one of 148 plumbing and heating companies in Swansea. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 -£249.
- Current assets of £1 against £250 owed within a year: 0.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | -£249 | £1 | £250 | 1 | |
| 29 Feb 2024 | -£249 | £1 | £250 | 1 | |
| 28 Feb 2023 | -£249 | £1 | 1 |
Where Flush H2O Ltd is registered
The registered office is in Swansea (SA6), in the Swansea local authority area, Wales. Show SA6 6LY on a map.
Other trade companies in SA6
- Alpine Roofing (Swansea) LimitedRoofers
- Auto Surplus Wales LtdMotor traders
- Roofmaster Roofing and Building LtdProperty developers
- Everyday Maintenance Services LtdSpecialist contractors
- M.E Exterior Cleaning LimitedCleaning companies
- Color Harmony LtdPainters and decorators
- RSM Cars LimitedMotor traders
- T&T Roofing & Home Improvements LtdRoofers
What happens if Flush H2O 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 13923271
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 February 2022 (4 years ago)
- Registered office
- 60 Llanllienwen Close, Ynysforgan, Swansea, SA6 6LY
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 16 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 Swansea
Other active plumbing and heating companies registered in Swansea.
- Freshwater Interiors Ltd2004
- Garmik Gas Services Limited2017
- Gas Care Swansea Ltd2025
- Gas Right Limited2025
- Gas Services Wales Limited2001
- Gower Gas & Renewables Limited2015
- Gower Refrigeration and Air Conditioning Ltd2026
- Graham's Heating & Plumbing Ltd2010
All plumbing and heating companies in Swansea · All trades in Swansea · Plumbers and heating engineers across the UK
Frequently asked questions
When are Flush H2O Ltd's accounts due?
Flush H2O Ltd's next accounts are due at Companies House by 30 November 2026 (in 49 days), covering the period to 28 February 2026.
When is Flush H2O Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Flush H2O Ltd still trading?
Flush H2O 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 Flush H2O Ltd do?
Flush H2O Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Flush H2O Ltd?
Flush H2O Ltd was incorporated on 17 February 2022, 4 years ago.
What is the penalty if Flush H2O 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 Flush H2O 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.