- Companies
- Plumbers and heating engineers
- London
- Gas One Group Ltd
Gas One Group Ltd
- Company number
- 12054113
- Incorporated
- 17 Jun 20197 years trading
- Registered office
- 29 Park Road, West Hendon, London, NW4 3PT
- Nature of business
- Plumbing, heat and air-conditioning installation
Gas One Group Ltd is a 7-year-old private limited company registered in London, company number 12054113, one of 2,972 plumbing and heating companies in London.
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 £3,635 on the year before, to -£3,697.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £11K against £11K owed within a year: 1.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2020 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2024 | -£3,697 | £11K | £11K | 1 | |
| 30 Jun 2023 | -£62 | £14K | £5,751 | 1 | |
| 30 Jun 2022 | £811 | £19K | £2,653 | 1 | |
| 30 Jun 2021 | £281 | £22K | £1,356 | 1 | |
| 30 Jun 2020 | £4 | £19K | £19K | 1 |
Where Gas One Group Ltd is registered
The registered office is in London (NW4), in the Barnet local authority area, London. Show NW4 3PT on a map.
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What happens if Gas One Group 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 30 June 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2026 to 31 Jul 2026 | £150 |
| 1 to 3 months late | 1 Aug 2026 to 30 Sep 2026 | £375 |
| 3 to 6 months late | 1 Oct 2026 to 31 Dec 2026 | £750 |
| More than 6 months late | From 1 Jan 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2026 | £200 |
| 3 months late | 30 Dec 2026 | another £200 |
| 6 months late | 30 Mar 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 12054113
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 June 2019 (7 years ago)
- Registered office
- 29 Park Road, West Hendon, London, NW4 3PT
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2024
- Last confirmation statement
- 16 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 London
Other active plumbing and heating companies registered in London.
- Gas Plumbing Heating Limited2026
- Gas Plumbing Safe Ltd2022
- Gas Proco (London) Ltd2014
- Gas Ray Ltd2017
- Gas Safety Certificates Ltd2025
- Gas Safety Check1 Ltd2024
- Gas Safety Inspections Ltd2012
- Gas Tech Solutions Limited2007
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Gas One Group Ltd's accounts due?
The register showed Gas One Group Ltd's accounts as due on 30 June 2026. That date has passed; the Companies House register shows whether they have been filed since.
When is Gas One Group 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 30 June 2025, due by 30 June 2026, and one for the period to 30 September 2025, due by 30 September 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Gas One Group Ltd still trading?
Gas One Group 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 Gas One Group Ltd do?
Gas One Group Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Gas One Group Ltd?
Gas One Group Ltd was incorporated on 17 June 2019, 7 years ago.
What is the penalty if Gas One Group 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 Gas One Group 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.