- Companies
- Plumbers and heating engineers
- London
- GML Plumbing & Heating Ltd
GML Plumbing & Heating Ltd
- Company number
- 14309641
- Incorporated
- 22 Aug 20224 years trading
- Registered office
- 22 Norbury Rise, London, SW16 4JF
- Nature of business
- Plumbing, heat and air-conditioning installation; Other building completion and finishing
GML Plumbing & Heating Ltd is a 4-year-old private limited company registered in London, company number 14309641, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £28K (+43.8%) on the year before, to £92K.
- Current assets of £97K against £14K owed within a year: 7.1 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £92K | £97K | £14K | 2 | |
| 31 Aug 2024 | £64K | £72K | £21K | 2 | |
| 31 Aug 2023 | £29K | £18K | £9,267 | 2 |
Where GML Plumbing & Heating Ltd is registered
The registered office is in London (SW16), in the Croydon local authority area, London. Show SW16 4JF on a map.
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- N.L. Unique Home LtdBuilders
- MD Flooring Specialists LtdFloor and wall tilers
- Aman Cleaning LtdCleaning companies
- Infinity Buildings LimitedBuilders
- Cleaning Perfect London LtdCleaning companies
What happens if GML Plumbing & Heating 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 14309641
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 August 2022 (4 years ago)
- Registered office
- 22 Norbury Rise, London, SW16 4JF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other building completion and finishing (SIC 43390) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 21 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 London
Other active plumbing and heating companies registered in London.
- GMS Residential Limited2026
- GMZ Property Solution Ltd2025
- GNP Airconditioning Ltd2022
- GNR Installation Ltd2026
- Go Gas Heating Ltd2024
- Go With the Flow Limited2007
- Go With the Flow Plumbing and Heating Ltd2009
- Go-Plumb Limited2022
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are GML Plumbing & Heating Ltd's accounts due?
GML Plumbing & Heating Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is GML Plumbing & Heating Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is GML Plumbing & Heating Ltd still trading?
GML Plumbing & Heating 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 GML Plumbing & Heating Ltd do?
GML Plumbing & Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other building completion and finishing (SIC 43390).
How old is GML Plumbing & Heating Ltd?
GML Plumbing & Heating Ltd was incorporated on 22 August 2022, 4 years ago.
What is the penalty if GML Plumbing & Heating 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 GML Plumbing & Heating 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.