- Companies
- Plumbers and heating engineers
- London
- Gas Heat Flow Ltd
Gas Heat Flow Ltd
- Company number
- 16465825
- Incorporated
- 21 May 20251 year trading
- Registered office
- 17A Electric Lane, London, SW9 8LA
- Nature of business
- Plumbing, heat and air-conditioning installation
Gas Heat Flow Ltd is a 1-year-old private limited company registered in London, company number 16465825, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 21 February 2027, and its first CT600 is due at HMRC on 20 May 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Gas Heat Flow Ltd is registered
The registered office is in London (SW9), in the Lambeth local authority area, London. Show SW9 8LA on a map.
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Also registered at this address
5 other companies use the same registered office as Gas Heat Flow Ltd.
- 98 Avenue Road LtdProperty developers
- Kin LtdProperty developers
- Ratio Developments LtdProperty developers
- Saphire Cleaning LtdCleaning companies
- T.W.G. Cleaning Services LtdCleaning companies
What happens if Gas Heat Flow 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 21 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 22 Feb 2027 to 21 Mar 2027 | £150 |
| 1 to 3 months late | 22 Mar 2027 to 21 May 2027 | £375 |
| 3 to 6 months late | 22 May 2027 to 21 Aug 2027 | £750 |
| More than 6 months late | From 22 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 16465825
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 May 2025 (1 year ago)
- Registered office
- 17A Electric Lane, London, SW9 8LA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
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 Help Ltd2025
- Gas Inspections Ltd2023
- Gas Logik Gas Engineers Ltd2019
- Gas on Tap Ltd2018
- Gas One Group Ltd2019
- Gas Plumbing Heating Limited2026
- Gas Plumbing Safe Ltd2022
- Gas Proco (London) Ltd2014
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Gas Heat Flow Ltd's accounts due?
Gas Heat Flow Ltd's next accounts are due at Companies House by 21 February 2027 (in 131 days), covering the period to 31 May 2026.
When is Gas Heat Flow 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 20 May 2026, due by 20 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Gas Heat Flow Ltd still trading?
Gas Heat Flow Ltd is listed as active on the Companies House register (checked 13 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 Heat Flow Ltd do?
Gas Heat Flow Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Gas Heat Flow Ltd?
Gas Heat Flow Ltd was incorporated on 21 May 2025, 1 year ago.
What is the penalty if Gas Heat Flow 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 Heat Flow Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.