- Companies
- Plumbers and heating engineers
- London
- Gas First Ltd
Gas First Ltd
- Company number
- 08110842
- Incorporated
- 19 Jun 201214 years trading
- Registered office
- 145A Green Street, London, E7 8JE
- Nature of business
- Plumbing, heat and air-conditioning installation
Gas First Ltd is a 14-year-old private limited company registered in London, company number 08110842, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £3,655 (+9.9%) on the year before, to -£33K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £8,434 against £3,098 owed within a year: 2.7 times cover.
- 1 employee on average, down from 2 the year before.
- 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 Jun 2025 | -£33K | £3,952 | £8,434 | £3,098 | 1 |
| 30 Jun 2024 | -£37K | £400 | £6,070 | £4,800 | 2 |
| 30 Jun 2023 | -£37K | £1,156 | £15K | £12K | 2 |
| 30 Jun 2022 | -£17K | £8,221 | £26K | £3,807 | 1 |
| 30 Jun 2021 | -£22K | £28K | £31K | £2,625 | 1 |
| 30 Jun 2020 | -£1,116 | £49K | £52K | £3,455 | 1 |
| 30 Jun 2019 | £498 | £348 | £3,210 | £2,712 | |
| 30 Jun 2018 | £1,045 | £3,192 | £3,669 | £2,624 | |
| 30 Jun 2017 | £899 | £374 | £1,351 | £452 | |
| 30 Jun 2016 | £1 | £1 |
Where Gas First Ltd is registered
The registered office is in London (E7), in the Newham local authority area, London. Show E7 8JE on a map.
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What happens if Gas First 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 08110842
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 June 2012 (14 years ago)
- Registered office
- 145A Green Street, London, E7 8JE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 29 June 2026
- Previous names
- Kustom FX Limited (until 1 Oct 2016)
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 Flow Pro Ltd2024
- Gas Force Direct Heating and Cooling Ltd2019
- Gas Heat Flow Ltd2025
- Gas Help Ltd2025
- Gas Inspections Ltd2023
- Gas Logik Gas Engineers Ltd2019
- Gas on Tap Ltd2018
- Gas One Group Ltd2019
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Gas First Ltd's accounts due?
Gas First Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Gas First Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Gas First Ltd still trading?
Gas First 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 First Ltd do?
Gas First Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Gas First Ltd?
Gas First Ltd was incorporated on 19 June 2012, 14 years ago.
What is the penalty if Gas First 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 First 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.