- Companies
- Machinery repair and installation
- London
- Thermoflow Ltd
Thermoflow Ltd
- Company number
- 07456699
- Incorporated
- 1 Dec 201015 years trading
- Registered office
- 30 Porcupine Close, London, SE9 3AE
- Nature of business
- Repair of other equipment
Thermoflow Ltd is a 15-year-old private limited company registered in London, company number 07456699, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 31 December 2026.
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 £3,972 (-86%) on the year before, to £644.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | £644 | £9,580 | £12K | 1 | |
| 31 Dec 2023 | £4,616 | £17K | £15K | 1 | |
| 31 Dec 2022 | £3,330 | £16K | £15K | 1 | |
| 31 Dec 2021 | £387 | £7,953 | £8,892 | 1 | |
| 31 Dec 2020 | £156 | £2,367 | £2,986 | 1 | |
| 31 Dec 2019 | £997 | £4,407 | £4,407 | £5,876 | 1 |
| 31 Dec 2018 | £2,095 | £8,070 | £10K | ||
| 31 Dec 2017 | £2,095 | £4,790 | £8,070 | £10K | |
| 31 Dec 2016 | £1,061 | £3,212 | £6,955 | £12K | |
| 31 Dec 2015 | £245 | £1,084 | £5,111 | £12K |
Who runs and owns Thermoflow Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| G*** A*** | Director | Dec 2010 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| G*** K*** | Secretary | Dec 2010 | Dec 2013 |
Person with significant control
Where Thermoflow Ltd is registered
The registered office is in London (SE9), in the Greenwich local authority area, London. Show SE9 3AE on a map.
Other trade companies in SE9
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- Yoi As LtdBuilders
- Interfix LtdSpecialist contractors
- South East London Locksmith LimitedSpecialist contractors
- S&O Maintenance LimitedInstallers
- Colvin Construction LimitedBuilders
What happens if Thermoflow 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 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
- 07456699
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 December 2010 (15 years ago)
- Registered office
- 30 Porcupine Close, London, SE9 3AE
- Nature of business
- Repair of other equipment (SIC 33190)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 1 December 2025
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in London
Other active machinery repair and installation companies registered in London.
- Thurrock Cater Care Ltd2025
- Tidehold One Limited2012
- Tiles Bloom Limited2025
- Titchfield Digital Support Limited2024
- TJ Decorators Ltd2017
- TJ74 Ltd2012
- TJCP Investments Limited2021
- TNT Solutions Ltd2018
All machinery repair and installation companies in London · All trades in London · Machinery repair and installation across the UK
Frequently asked questions
When are Thermoflow Ltd's accounts due?
Thermoflow Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Thermoflow Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 December 2025, due by 31 December 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Thermoflow Ltd still trading?
Thermoflow 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 Thermoflow Ltd do?
Thermoflow Ltd is registered under Repair of other equipment (SIC 33190).
How old is Thermoflow Ltd?
Thermoflow Ltd was incorporated on 1 December 2010, 15 years ago.
Who runs Thermoflow Ltd?
Thermoflow Ltd has 1 active director, the longest-serving appointed in Dec 2010. Their names and service addresses are on the Companies House register.
Who owns Thermoflow Ltd?
One person or company has significant control of Thermoflow Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Thermoflow 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 Thermoflow 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.