- Companies
- Plumbers and heating engineers
- Flowmasters Environmental Services Limited
Flowmasters Environmental Services Limited
- Company number
- 06011595
- Incorporated
- 28 Nov 200619 years trading
- Registered office
- 46 Syon Lane, Osterley, TW7 5NQ
- Nature of business
- Plumbing, heat and air-conditioning installation
Flowmasters Environmental Services Limited is a 19-year-old private limited company registered in Osterley, company number 06011595, one of the UK's plumbing and heating companies. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 up £3,647 (+27.9%) on the year before, to £17K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £35K against £26K owed within a year: 1.3 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £17K | £30K | £35K | £26K | 4 |
| 30 Nov 2024 | £13K | £11K | £19K | £18K | 4 |
| 30 Nov 2023 | £30K | £40K | £46K | £16K | 4 |
| 30 Nov 2022 | £31K | £32K | £48K | £19K | 4 |
| 30 Nov 2021 | £11K | £24K | £33K | £23K | 4 |
| 30 Nov 2020 | £35K | £13K | £54K | £19K | 4 |
| 30 Nov 2019 | £47K | £26K | £60K | £17K | 4 |
| 30 Nov 2018 | £64K | £35K | £66K | £10K | 4 |
| 30 Nov 2017 | £46K | £13K | £40K | £5,694 | 3 |
| 30 Nov 2016 | £23K | £17K | £32K | £9,048 |
Where Flowmasters Environmental Services Limited is registered
The registered office is in Osterley (TW7), in the Hounslow local authority area, London. Show TW7 5NQ on a map.
Other trade companies in TW7
- Pracom LtdMachinery repair and installation
- V&R Construction Group LtdBuilders
- Gio Construction LimitedBuilders
- S & H Bodywork LtdMechanics and garages
- KS Garage Isleworth LtdMotor traders
- C Wiseman Services LtdCleaning companies
- Avenida Developments LtdProperty developers
- Courtesy Cars Group UK LtdMotor traders
Also registered at this address
19 other companies use the same registered office as Flowmasters Environmental Services Limited.
- Atlantis Diesels (UK) LimitedMechanics and garages
- Bara Bore LtdProperty developers
- CRM Plumbing Services LtdPlumbers and heating engineers
- Dass & Roda Homes LimitedProperty developers
- FSP London LimitedMechanics and garages
- Gem Construction Services (UK) LtdBuilders
- Horsepower Collective LtdMotor traders
- Horsepower Logistics LimitedMotor traders
- Imbrex Roofing LtdRoofers
- Inspired Design and Build LimitedBuilders
- JC Sealants LtdSpecialist contractors
- M J M Plumbing & Heating (2022) LtdPlumbers and heating engineers
- MD Garden Services LimitedLandscapers and gardeners
- Nidaan LtdProperty developers
- Oakbrook Gas,Water and Heating Services LimitedPlumbers and heating engineers
- Opus Int LtdProperty developers
- Seehorizons LimitedFinishing trades
- Simon's Autos LimitedMotor traders
- Syon Cleaning LtdCleaning companies
What happens if Flowmasters Environmental Services 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 06011595
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 November 2006 (19 years ago)
- Registered office
- 46 Syon Lane, Osterley, TW7 5NQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 31 October 2025
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
Other active plumbing and heating companies.
Frequently asked questions
When are Flowmasters Environmental Services Limited's accounts due?
Flowmasters Environmental Services Limited's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Flowmasters Environmental Services Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Flowmasters Environmental Services Limited still trading?
Flowmasters Environmental Services 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 Flowmasters Environmental Services Limited do?
Flowmasters Environmental Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Flowmasters Environmental Services Limited?
Flowmasters Environmental Services Limited was incorporated on 28 November 2006, 19 years ago.
What is the penalty if Flowmasters Environmental Services 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 Flowmasters Environmental Services 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.