- Companies
- Plumbers and heating engineers
- London
- GNP Airconditioning Ltd
GNP Airconditioning Ltd
- Company number
- 14511213
- Incorporated
- 28 Nov 20223 years trading
- Registered office
- 107 George Lane, London, E18 1AN
- Nature of business
- Plumbing, heat and air-conditioning installation; Wholesale of hardware, plumbing and heating equipment and supplies
GNP Airconditioning Ltd is a 3-year-old private limited company registered in London, company number 14511213, 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 up £13K (+373.6%) on the year before, to £16K.
- Current assets of £25K against £15K owed within a year: 1.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2023 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2024 | £16K | £752 | £25K | £15K | 1 |
| 30 Nov 2023 | £3,397 | £6,264 | £9,978 | £6,581 | 1 |
Who runs and owns GNP Airconditioning Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| D*** P*** | Director | Nov 2022 |
Person with significant control
Where GNP Airconditioning Ltd is registered
The registered office is in London (E18), in the Redbridge local authority area, London. Show E18 1AN on a map.
Other trade companies in E18
- SRW Construction LtdSpecialist contractors
- FDG Group Solutions LtdBuilders
- Nga Cleaners LtdCleaning companies
- JCN Decorators LtdBuilders
- CS Auto Parts LtdMotor traders
- Phantom Car Parts LtdMotor traders
- SK UK Construction LtdBuilders
- Neoflex LtdJoiners and carpenters
Also registered at this address
3 other companies use the same registered office as GNP Airconditioning Ltd.
- A1Rforce LtdPlumbers and heating engineers
- Caverton Group LtdMotor traders
- Under One Trade LtdFinishing trades
What happens if GNP Airconditioning 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
- 14511213
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 November 2022 (3 years ago)
- Registered office
- 107 George Lane, London, E18 1AN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Wholesale of hardware, plumbing and heating equipment and supplies (SIC 46740) - Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 27 November 2025
- Previous names
- DSTC Ltd (until 15 Apr 2024)
DST London Limited (until 8 Dec 2022)
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.
- GNR Installation Ltd2026
- Go Gas Heating Ltd2024
- Go With the Flow Limited2007
- Go With the Flow Plumbing and Heating Ltd2009
- Go-Plumb Limited2022
- Godrevy Gas Limited2015
- Gofix Services Ltd2026
- Gold Bear Ltd2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are GNP Airconditioning Ltd's accounts due?
GNP Airconditioning Ltd's accounts were due at Companies House on 31 August 2026 and the register shows them as overdue.
When is GNP Airconditioning 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 GNP Airconditioning Ltd still trading?
GNP Airconditioning 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 GNP Airconditioning Ltd do?
GNP Airconditioning Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Wholesale of hardware, plumbing and heating equipment and supplies (SIC 46740).
How old is GNP Airconditioning Ltd?
GNP Airconditioning Ltd was incorporated on 28 November 2022, 3 years ago.
Who runs GNP Airconditioning Ltd?
GNP Airconditioning Ltd has 1 active director, the longest-serving appointed in Nov 2022. Their names and service addresses are on the Companies House register.
Who owns GNP Airconditioning Ltd?
One person or company has significant control of GNP Airconditioning Ltd: an individual (owns 75% or more of the shares).
What is the penalty if GNP Airconditioning 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 GNP Airconditioning 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.