- Companies
- Plumbers and heating engineers
- Northampton
- Heat Source Plumbing, Heating & Renewable Energy Limited
Heat Source Plumbing, Heating & Renewable Energy Limited
- Company number
- 10329765
- Incorporated
- 15 Aug 201610 years trading
- Registered office
- 21 Holbein Gardens, Northampton, NN4 9XT
- Nature of business
- Plumbing, heat and air-conditioning installation
Heat Source Plumbing, Heating & Renewable Energy Limited is a 10-year-old private limited company registered in Northampton, company number 10329765, one of 197 plumbing and heating companies in Northampton. 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 down £30K on the year before, to -£30K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £5,957 against £21K owed within a year: 0.3 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | -£30K | £5,957 | £21K | 1 | |
| 31 Aug 2024 | £41 | £48K | £29K | 1 | |
| 31 Aug 2023 | £79 | £47K | £22K | -1 | |
| 31 Aug 2022 | -£6,878 | £4,640 | £47K | £54K | 1 |
| 31 Aug 2021 | -£16K | £9,218 | £48K | £21K | 2 |
| 31 Aug 2020 | £788 | £15K | £53K | £4,218 | 3 |
| 31 Aug 2019 | £721 | £20K | £14K | £14K | 2 |
| 31 Aug 2018 | £14K | £20K | £28K | £14K | |
| 31 Aug 2017 | £4,218 | £25K | £33K | £28K | 1 |
Where Heat Source Plumbing, Heating & Renewable Energy Limited is registered
The registered office is in Northampton (NN4), in the West Northamptonshire local authority area, East Midlands. Show NN4 9XT on a map.
Other trade companies in NN4
- Marks Performance LtdMotor traders
- Midlands Lifting Services LtdSpecialist contractors
- Collingtree Group LtdBuilders
- Lab Electrical Solutions LtdElectricians
- BM Automotive Group LtdMechanics and garages
- Keenan Rentals LtdProperty developers
- Collingtree Cool LtdPlumbers and heating engineers
- Je Brickwork LtdBuilders
What happens if Heat Source Plumbing, Heating & Renewable Energy Limited 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
- 10329765
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 August 2016 (10 years ago)
- Registered office
- 21 Holbein Gardens, Northampton, NN4 9XT
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 23 June 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 Northampton
Other active plumbing and heating companies registered in Northampton.
- Heatex Gas Solutions Ltd2026
- Heaton Plumbing & HTG Ltd2026
- High Acre Developments Limited2014
- Hogben Plumbing and Heating Limited2021
- Holywell Heating Ltd2026
- Hunsbury Heating Ltd2018
- Hunter Heating Ltd2024
- Hunter M&E Ltd2021
All plumbing and heating companies in Northampton · All trades in Northampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Heat Source Plumbing, Heating & Renewable Energy Limited's accounts due?
Heat Source Plumbing, Heating & Renewable Energy Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Heat Source Plumbing, Heating & Renewable Energy Limited'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 Heat Source Plumbing, Heating & Renewable Energy Limited still trading?
Heat Source Plumbing, Heating & Renewable Energy Limited 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 Heat Source Plumbing, Heating & Renewable Energy Limited do?
Heat Source Plumbing, Heating & Renewable Energy Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Heat Source Plumbing, Heating & Renewable Energy Limited?
Heat Source Plumbing, Heating & Renewable Energy Limited was incorporated on 15 August 2016, 10 years ago.
What is the penalty if Heat Source Plumbing, Heating & Renewable Energy Limited 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 Heat Source Plumbing, Heating & Renewable Energy Limited 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.