- Companies
- Plumbers and heating engineers
- Gloucester
- Thornbrook Ventilation Ltd
Thornbrook Ventilation Ltd
- Company number
- 06396325
- Incorporated
- 11 Oct 200719 years trading
- Registered office
- 25 Damson Close, Abbeymead, Gloucester, Gloucestershire, GL4 5BW
- Nature of business
- Plumbing, heat and air-conditioning installation
Thornbrook Ventilation Ltd is a 19-year-old private limited company registered in Gloucester, company number 06396325, one of 114 plumbing and heating companies in Gloucester. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Thornbrook Ventilation LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £1,382 (-8.1%) on the year before, to £16K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £218K against £166K owed within a year: 1.3 times cover.
- 1 employee 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 |
|---|---|---|---|---|---|
| 31 Oct 2025 | £16K | £10K | £218K | £166K | 1 |
| 31 Oct 2024 | £17K | £8,801 | £184K | £131K | 1 |
| 31 Oct 2023 | £52K | £24K | £210K | £123K | 1 |
| 31 Oct 2022 | £43K | £4,139 | £178K | £105K | 1 |
| 31 Oct 2021 | £18K | £2,566 | £153K | £100K | 1 |
| 31 Oct 2020 | -£33K | £102K | £108K | 2 | |
| 31 Oct 2019 | £6,351 | £0 | £125K | £127K | 2 |
| 31 Oct 2018 | £4,521 | £14K | £97K | £92K | 2 |
| 31 Oct 2017 | £55K | £0 | £135K | £94K | 2 |
| 31 Oct 2016 | £2,239 | £5,735 | £126K | £111K |
Who runs and owns Thornbrook Ventilation Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| D*** E*** | Director | Oct 2007 |
| D*** E*** | Secretary | Oct 2007 |
4 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| Form 10 Secretaries Fd Ltd | Corporate Nominee Secretary | Oct 2007 | Oct 2007 |
| C*** E*** | Director | Apr 2018 | Jan 2021 |
| B*** T*** | Director | Oct 2007 | Dec 2017 |
| Form 10 Directors Fd Ltd | Nominee director (company) | Oct 2007 | Oct 2007 |
Person with significant control
Where Thornbrook Ventilation Ltd is registered
The registered office is in Gloucester (GL4), in the Gloucester local authority area, South West. Show GL4 5BW on a map.
Other trade companies in GL4
- TPS Cleaning Services LtdCleaning companies
- Tarin Construction LtdFinishing trades
- Suli Builder LtdFinishing trades
- Cotswold Grain LtdBuilders
- Movro LtdMotor traders
- Westline Auto LtdMechanics and garages
- Merry Heart Cleaning Services LtdCleaning companies
- Elite Heating and Plumbing LimitedPlumbers and heating engineers
What happens if Thornbrook Ventilation 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 06396325
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 October 2007 (19 years ago)
- Registered office
- 25 Damson Close, Abbeymead, Gloucester, Gloucestershire, GL4 5BW
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 16 August 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 Gloucester
Other active plumbing and heating companies registered in Gloucester.
- Tim Olding Heating & Plumbing Limited2009
- Ting Energy Limited2026
- TJP Heating Contractors Ltd2016
- Viner's Plumbing & Heating Limited2013
- Vision Plumbing & Heating (Gloucester) Limited2022
- Vision Stoves and Fireplaces Ltd2024
- Your Local Plumbing & Heating Ltd2021
- Zar Heating Ltd2026
All plumbing and heating companies in Gloucester · All trades in Gloucester · Plumbers and heating engineers across the UK
Frequently asked questions
When are Thornbrook Ventilation Ltd's accounts due?
Thornbrook Ventilation Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Thornbrook Ventilation Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Thornbrook Ventilation Ltd still trading?
Thornbrook Ventilation 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 Thornbrook Ventilation Ltd do?
Thornbrook Ventilation Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Thornbrook Ventilation Ltd?
Thornbrook Ventilation Ltd was incorporated on 11 October 2007, 19 years ago.
Who runs Thornbrook Ventilation Ltd?
Thornbrook Ventilation Ltd has 1 active director, the longest-serving appointed in Oct 2007. Their names and service addresses are on the Companies House register.
Who owns Thornbrook Ventilation Ltd?
One person or company has significant control of Thornbrook Ventilation Ltd: an individual (owns 50% to 75% of the shares).
What is the penalty if Thornbrook Ventilation 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 Thornbrook Ventilation 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.