- Companies
- Plumbers and heating engineers
- Hemel Hempstead
- North Thames Heating Ltd
North Thames Heating Ltd
- Company number
- 11417043
- Incorporated
- 15 Jun 20188 years trading
- Registered office
- 11 Cedar Walk, Hemel Hempstead, Hertfordshire, HP3 9EB
- Nature of business
- Plumbing, heat and air-conditioning installation
North Thames Heating Ltd is a 8-year-old private limited company registered in Hemel Hempstead, company number 11417043, one of 89 plumbing and heating companies in Hemel Hempstead. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £777 (+76.9%) on the year before, to £1,788.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1,788 | £25K | 1 | ||
| 31 Mar 2024 | £1,011 | £29K | 1 | ||
| 31 Mar 2023 | £1,288 | £34K | 1 | ||
| 31 Mar 2022 | £838 | £42K | £45K | 1 | |
| 31 Mar 2021 | £422 | £44K | £0 | 1 | |
| 31 Mar 2020 | £1,452 | £7,505 | £13K | 1 | |
| 30 Jun 2019 | £2,106 | £3,311 | £8,339 |
Where North Thames Heating Ltd is registered
The registered office is in Hemel Hempstead (HP3), in the Dacorum local authority area, East of England. Show HP3 9EB on a map.
Other trade companies in HP3
- G-Force Plumbing & Heating Contractors LimitedPlumbers and heating engineers
- Primeline Property Solutions LtdRoofers
- Elite Roof Repairs LtdRoofers
- Connor Air LimitedPlumbers and heating engineers
- Irv Services LtdInstallers
- Herts Number Plates LtdMotor traders
- RH Design and Electrical LtdBuilders
- Ejc Plumbing LtdPlumbers and heating engineers
What happens if North Thames 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11417043
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 June 2018 (8 years ago)
- Registered office
- 11 Cedar Walk, Hemel Hempstead, Hertfordshire, HP3 9EB
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 2 June 2026
- Previous names
- NT Gas (London) Ltd (until 25 Apr 2025)
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 Hemel Hempstead
Other active plumbing and heating companies registered in Hemel Hempstead.
- On Point Plumbing and Heating Services Limited2024
- Orion Building Engineering Services Limited1998
- Plumb Heating Ltd2017
- Plumbalb Plumbers Ltd2016
- Plumbline Building Services Limited2009
- Pro-Heat (Gas Services) Limited2004
- Professional Gas Heating Services Limited1997
- Property Champions Management Ltd2025
All plumbing and heating companies in Hemel Hempstead · All trades in Hemel Hempstead · Plumbers and heating engineers across the UK
Frequently asked questions
When are North Thames Heating Ltd's accounts due?
North Thames Heating Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is North Thames Heating Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is North Thames Heating Ltd still trading?
North Thames 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 North Thames Heating Ltd do?
North Thames Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is North Thames Heating Ltd?
North Thames Heating Ltd was incorporated on 15 June 2018, 8 years ago.
What is the penalty if North Thames 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 North Thames 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.