- Companies
- Plumbers and heating engineers
- Towcester
- Heat Source Engineers Limited
Heat Source Engineers Limited
- Company number
- 16628259
- Incorporated
- 5 Aug 20251 year trading
- Registered office
- Office 6 Town Hall, 86 Watling Street East, Towcester, NN12 6BS
- Nature of business
- Plumbing, heat and air-conditioning installation
Heat Source Engineers Limited is a 1-year-old private limited company registered in Towcester, company number 16628259, one of 26 plumbing and heating companies in Towcester. Its next accounts are due at Companies House on 5 May 2027, and its first CT600 is due at HMRC on 4 August 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 Heat Source Engineers Limited is registered
The registered office is in Towcester (NN12), in the West Northamptonshire local authority area, East Midlands. Show NN12 6BS on a map.
Other trade companies in NN12
- Abpearce LimitedProperty developers
- Ajpearce LimitedElectricians
- Eays Rent LtdMechanics and garages
- Oske Equestrian LimitedSpecialist contractors
- Felix Painting LtdBuilders
- JF Electrical Solutions LtdElectricians
- Church's Electrical LimitedElectricians
- J.R Auto Engineering LtdMechanics and garages
Also registered at this address
15 other companies use the same registered office as Heat Source Engineers Limited.
- Advanced Loft Ladders LtdJoiners and carpenters
- Diversityscope LimitedProperty developers
- Electrikarl LtdElectricians
- Fortis Performance Centre LimitedMotor traders
- Fortis Racing LimitedMotor traders
- JN Installations LtdGlaziers
- LMR Construction LtdBuilders
- Mechanical Knight Services LtdMechanics and garages
- Mode Performance LimitedMotor traders
- Mode Racing LimitedMotor traders
- N. Huckle & Sons Garden Services LimitedLandscapers and gardeners
- New Mode Performance LimitedMotor traders
- SGH Maintenance LimitedFinishing trades
- The Gardening Girls LimitedLandscapers and gardeners
- Walter Williams Heating LtdPlumbers and heating engineers
What happens if Heat Source Engineers 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 5 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 6 May 2027 to 5 Jun 2027 | £150 |
| 1 to 3 months late | 6 Jun 2027 to 5 Aug 2027 | £375 |
| 3 to 6 months late | 6 Aug 2027 to 5 Nov 2027 | £750 |
| More than 6 months late | From 6 Nov 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
- 16628259
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 August 2025 (1 year ago)
- Registered office
- Office 6 Town Hall, 86 Watling Street East, Towcester, NN12 6BS
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 3 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 Towcester
Other active plumbing and heating companies registered in Towcester.
- Hills Plumbing & Gas Services Ltd2019
- Interior Life Limited2005
- JMG Cooling Services Limited2024
- Labrum Engineering Limited2020
- M & J Stilp Limited2001
- Ouseside Contracts Limited2016
- Resolute Heating Solutions Ltd.2022
- Rhino Plumbing Ltd2022
All plumbing and heating companies in Towcester · All trades in Towcester · Plumbers and heating engineers across the UK
Frequently asked questions
When are Heat Source Engineers Limited's accounts due?
Heat Source Engineers Limited's next accounts are due at Companies House by 5 May 2027 (in 205 days), covering the period to 31 August 2026.
When is Heat Source Engineers Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 4 August 2026, due by 4 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Heat Source Engineers Limited still trading?
Heat Source Engineers 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 Engineers Limited do?
Heat Source Engineers Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Heat Source Engineers Limited?
Heat Source Engineers Limited was incorporated on 5 August 2025, 1 year ago.
What is the penalty if Heat Source Engineers 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 Engineers 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.