- Companies
- Builders
- Waterlooville
- H2 Flow Plumbing & Construction Limited
H2 Flow Plumbing & Construction Limited
- Company number
- 10696589
- Incorporated
- 29 Mar 20179 years trading
- Registered office
- 23A the Precinct, London Road, Waterlooville, Hampshire, PO7 7DT
- Nature of business
- Construction of domestic buildings; Plumbing, heat and air-conditioning installation; Other construction installation
H2 Flow Plumbing & Construction Limited is a 9-year-old private limited company registered in Waterlooville, company number 10696589, one of 163 building contractors in Waterlooville. 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 down £4,292 (-38.1%) on the year before, to £6,966.
- Net assets rose in 3 of 7 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £6,966 | £7,301 | 1 | ||
| 31 Mar 2024 | £11K | £4,346 | 1 | ||
| 31 Mar 2023 | £3,936 | £115 | 1 | ||
| 31 Mar 2022 | £9,987 | £261 | 1 | ||
| 31 Mar 2021 | £2,576 | £1,227 | 1 | ||
| 31 Mar 2020 | £7,345 | £750 | 1 | ||
| 31 Mar 2019 | £9,856 | £6,009 | |||
| 31 Mar 2018 | £2,338 | £10K |
Who runs and owns H2 Flow Plumbing & Construction Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| J*** J*** | Director | Mar 2017 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| Kitform Limited | Secretary (company) | Mar 2017 | Nov 2023 |
Person with significant control
Where H2 Flow Plumbing & Construction Limited is registered
The registered office is in Waterlooville (PO7), in the Havant local authority area, South East. Show PO7 7DT on a map.
Other trade companies in PO7
- Coast to Coast Flooring LtdFloor and wall tilers
- Fortress Roofing Services LtdInstallers
- Redlands Roofing LtdInstallers
- WCP Plumbing & Heating LtdPlumbers and heating engineers
- Sparmor Developments LtdProperty developers
- Titan Home Improvements LtdProperty developers
- Accord Housing LimitedProperty developers
- JM Property & Stoves Services LimitedBuilders
Also registered at this address
22 other companies use the same registered office as H2 Flow Plumbing & Construction Limited.
- A G C Property Services LimitedBuilders
- Akr Motor Company LimitedMotor traders
- Apex Industrial Roofing & Cladding LimitedRoofers
- B R T Surfacing LimitedInstallers
- Church White Windows LimitedGlaziers
- D T W Roofing LimitedRoofers
- G B H Builders LimitedBuilders
- Gavinci Plastering LimitedPlasterers
- Houghton's Autos LimitedMechanics and garages
- J H Plumbing Services LimitedPlumbers and heating engineers
- Keats Building LimitedGroundworks and demolition
- L & V Paving LimitedLandscapers and gardeners
- L H Plastering LimitedPlasterers
- Legend Kitchen Services LimitedJoiners and carpenters
- Lovedean Plumbing LimitedPlumbers and heating engineers
- Osmans Wood Floors LimitedFloor and wall tilers
- P Plumbing & Heating LimitedPlumbers and heating engineers
- Portsmouth Construction Services LimitedSpecialist contractors
- Secure Scaffolding Services LimitedScaffolders
- The Beam Team Services LimitedInstallers
- TJ Hearn Contracting LtdSpecialist contractors
- V P R Construction LtdPlumbers and heating engineers
What happens if H2 Flow Plumbing & Construction 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
- 10696589
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 March 2017 (9 years ago)
- Registered office
- 23A the Precinct, London Road, Waterlooville, Hampshire, PO7 7DT
- Nature of business
- Construction of domestic buildings (SIC 41202)
Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 27 March 2026
- Previous names
- H 2 Flow Plumbing Limited (until 23 Mar 2021)
Southern Spraytech Limited (until 2 Dec 2019)
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Waterlooville
Other active building contractors registered in Waterlooville.
- Hampshire Co Living Ltd2023
- Hampshire Group Southern Ltd2024
- Hampshire Paving & Construction Limited2017
- Harvey Brickwork Ltd2024
- Hayward Builders Ltd2025
- Henry Morris Homes Limited2015
- Homescape Construction Ltd2026
- Hughes Masonry Ltd2023
All building contractors in Waterlooville · All trades in Waterlooville · Builders across the UK
Frequently asked questions
When are H2 Flow Plumbing & Construction Limited's accounts due?
H2 Flow Plumbing & Construction 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 H2 Flow Plumbing & Construction 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 H2 Flow Plumbing & Construction Limited still trading?
H2 Flow Plumbing & Construction 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 H2 Flow Plumbing & Construction Limited do?
H2 Flow Plumbing & Construction Limited is registered under Construction of domestic buildings (SIC 41202); Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290).
How old is H2 Flow Plumbing & Construction Limited?
H2 Flow Plumbing & Construction Limited was incorporated on 29 March 2017, 9 years ago.
Who runs H2 Flow Plumbing & Construction Limited?
H2 Flow Plumbing & Construction Limited has 1 active director, the longest-serving appointed in Mar 2017. Their names and service addresses are on the Companies House register.
Who owns H2 Flow Plumbing & Construction Limited?
One person or company has significant control of H2 Flow Plumbing & Construction Limited: an individual (owns 75% or more of the shares).
What is the penalty if H2 Flow Plumbing & Construction 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 H2 Flow Plumbing & Construction 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.