- Companies
- Plumbers and heating engineers
- London
- Thomas Gas Engineering Ltd
Thomas Gas Engineering Ltd
- Company number
- 08306264
- Incorporated
- 23 Nov 201213 years trading
- Registered office
- 21 Norris, The Concourse, London, NW9 5UL
- Nature of business
- Plumbing, heat and air-conditioning installation
Thomas Gas Engineering Ltd is a 13-year-old private limited company registered in London, company number 08306264, one of 2,972 plumbing and heating companies in London. Companies House shows its accounts as overdue: they were due on 31 August 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 £910 (-71.8%) on the year before, to £357.
- Net assets rose in 2 of 9 year-on-year comparisons on record.
- Current assets of £1,379 against £1,022 owed within a year: 1.3 times cover.
- 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 |
|---|---|---|---|---|---|
| 30 Nov 2024 | £357 | £1,379 | £1,022 | 1 | |
| 30 Nov 2023 | £1,267 | £4,684 | £3,417 | 1 | |
| 30 Nov 2022 | £7,370 | £9,756 | £2,386 | 1 | |
| 30 Nov 2021 | £7,990 | £11K | £2,660 | 1 | |
| 30 Nov 2020 | £4,805 | £4,194 | £0 | 2 | |
| 30 Nov 2019 | £142 | £1,365 | £2,446 | 2 | |
| 30 Nov 2018 | £383 | £1,710 | £3,162 | ||
| 30 Nov 2017 | £428 | £1,841 | £3,860 | ||
| 30 Nov 2016 | £1,755 | £1,826 | £3,130 | ||
| 30 Nov 2015 | £3,312 | £860 | £860 | £1,372 |
Where Thomas Gas Engineering Ltd is registered
The registered office is in London (NW9), in the Barnet local authority area, London. Show NW9 5UL on a map.
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What happens if Thomas Gas Engineering Ltd files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2026 to 30 Sep 2026 | £150 |
| 1 to 3 months late | 1 Oct 2026 to 30 Nov 2026 | £375 |
| 3 to 6 months late | 1 Dec 2026 to 28 Feb 2027 | £750 |
| More than 6 months late | From 1 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2026 | £200 |
| 3 months late | 28 Feb 2027 | another £200 |
| 6 months late | 30 May 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 2027 | 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
- 08306264
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 November 2012 (13 years ago)
- Registered office
- 21 Norris, The Concourse, London, NW9 5UL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 23 November 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 in London
Other active plumbing and heating companies registered in London.
- Thomas Heating Solutions Ltd2025
- Thomas William Properties Ltd2021
- Thy Plumber Ltd2024
- Ticu Petrea Limited2026
- Tier 1 Heating Limited2015
- Tillett Plumbing & Heating Ltd2015
- Timms Property Maintenance & Management Ltd2021
- Tinersit Group Limited2026
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Thomas Gas Engineering Ltd's accounts due?
Thomas Gas Engineering Ltd's accounts were due at Companies House on 31 August 2026 and the register shows them as overdue.
When is Thomas Gas Engineering Ltd's CT600 due?
The CT600 for the period to 30 November 2025 is due at HMRC by 30 November 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2026.
Is Thomas Gas Engineering Ltd still trading?
Thomas Gas Engineering Ltd is listed as active on the Companies House register (checked 12 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 Thomas Gas Engineering Ltd do?
Thomas Gas Engineering Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Thomas Gas Engineering Ltd?
Thomas Gas Engineering Ltd was incorporated on 23 November 2012, 13 years ago.
What is the penalty if Thomas Gas Engineering 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 Thomas Gas Engineering Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.