- Companies
- Plumbers and heating engineers
- Dartford
- Primary Flow Ltd
Primary Flow Ltd
- Company number
- 11424166
- Incorporated
- 20 Jun 20188 years trading
- Registered office
- C K R House, 70 East Hill, Dartford, Kent, DA1 1RZ
- Nature of business
- Plumbing, heat and air-conditioning installation
Primary Flow Ltd is a 8-year-old private limited company registered in Dartford, company number 11424166, one of 121 plumbing and heating companies in Dartford. 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 £8,025 (-56.4%) on the year before, to £6,193.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £7,175 against £9,020 owed within a year: 0.8 times cover.
- 1 employee on average, down from 2 the year before.
- 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £6,193 | £5,925 | £7,175 | £9,020 | 1 |
| 30 Jun 2024 | £14K | £17K | £18K | £8,630 | 2 |
| 30 Jun 2023 | £13K | £12K | £15K | £9,251 | 1 |
| 30 Jun 2022 | £31K | £22K | £29K | £8,259 | 1 |
| 30 Jun 2021 | £22K | £13K | £13K | £3,134 | 1 |
| 30 Jun 2020 | £5,538 | £16K | £16K | £18K | 1 |
| 30 Jun 2019 | -£2,478 | £2,748 | £3,296 | £14K |
Who runs and owns Primary Flow Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| T*** J*** | Director | Jun 2018 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| T*** J*** | Director | Jun 2018 | Jun 2018 |
Person with significant control
Where Primary Flow Ltd is registered
The registered office is in Dartford (DA1), in the Dartford local authority area, South East. Show DA1 1RZ on a map.
Other trade companies in DA1
- Unit 6 Bespoke LtdSpecialist contractors
- Smartlifting LtdBuilders
- Degrees Bespoke Finishes LtdPlasterers
- A & A Electrical and Refrigeration LtdBuilders
- Elm Servicing LtdMachinery repair and installation
- WND Refrigeration LimitedPlumbers and heating engineers
- Moore Flooring and Sons LtdFloor and wall tilers
- Kinergy Systems LtdElectricians
Also registered at this address
22 other companies use the same registered office as Primary Flow Ltd.
- CJ Hall Builders LtdBuilders
- Daljo Developments LtdBuilders
- E3A Construction LtdSpecialist contractors
- Innovate Invest LtdProperty developers
- Leven Wharf LimitedBuilders
- Major Lift Services LtdInstallers
- PBH Garage Doors LimitedJoiners and carpenters
- Plantation Gwu LtdProperty developers
- Riley's Electrical & Security LtdElectricians
- Seven Design & Build LtdProperty developers
- Sulh Finance LtdProperty developers
- Sulh Securities & Investments LtdProperty developers
- Sulh Trading LtdProperty developers
- Sulhill LimitedProperty developers
- Track365 LtdMechanics and garages
- Unos Construction LimitedFinishing trades
- Vision Construct LimitedBuilders
- Wedgewood (Sevenoaks) LtdBuilders
- Wedgewood Homes (Birchington) LimitedProperty developers
- Wedgewood Homes (Boughton) LimitedBuilders
- Wedgewood Homes (Whitstable) LtdProperty developers
- Wefit Air Conditioning LimitedPlumbers and heating engineers
What happens if Primary Flow 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 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
- 11424166
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 June 2018 (8 years ago)
- Registered office
- C K R House, 70 East Hill, Dartford, Kent, DA1 1RZ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 19 June 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 Dartford
Other active plumbing and heating companies registered in Dartford.
- Priority Plumbing & Heating Services Ltd2016
- R M Burford Plumbing & Heating Limited2008
- R-B Installations Limited2014
- Rebec Limited2002
- Rfa Smart Construction Limited2020
- Ritual Plumbing Ltd2025
- SC Heating Ltd2018
- SM & Son's Services Ltd2025
All plumbing and heating companies in Dartford · All trades in Dartford · Plumbers and heating engineers across the UK
Frequently asked questions
When are Primary Flow Ltd's accounts due?
Primary Flow Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Primary Flow Ltd'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 Primary Flow Ltd still trading?
Primary Flow 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 Primary Flow Ltd do?
Primary Flow Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Primary Flow Ltd?
Primary Flow Ltd was incorporated on 20 June 2018, 8 years ago.
Who runs Primary Flow Ltd?
Primary Flow Ltd has 1 active director, the longest-serving appointed in Jun 2018. Their names and service addresses are on the Companies House register.
Who owns Primary Flow Ltd?
One person or company has significant control of Primary Flow Ltd: an individual (has significant influence or control).
What is the penalty if Primary Flow 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 Primary Flow 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.