- Companies
- Plumbers and heating engineers
- Northampton
- O'Brien Heating Services Limited
O'Brien Heating Services Limited
- Company number
- 11582653
- Incorporated
- 21 Sep 20188 years trading
- Registered office
- Brakendale Vyse Road, Boughton, Northampton, NN2 8SE
- Nature of business
- Plumbing, heat and air-conditioning installation
O'Brien Heating Services Limited is a 8-year-old private limited company registered in Northampton, company number 11582653, one of 197 plumbing and heating companies in Northampton. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £8,446 (-14.8%) on the year before, to £49K.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £58K against £9,193 owed within a year: 6.3 times cover.
- 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £49K | £58K | £9,193 | 1 | |
| 30 Sep 2024 | £57K | £66K | £10K | 1 | |
| 30 Sep 2023 | £49K | £58K | £10K | 1 | |
| 30 Sep 2022 | £39K | £45K | £9,872 | 1 | |
| 30 Sep 2021 | £23K | £26K | £6,562 | 1 | |
| 30 Sep 2020 | £13K | £13K | £3,787 | 1 | |
| 30 Sep 2019 | -£7,542 | -£12K | £9,693 | 1 |
Where O'Brien Heating Services Limited is registered
The registered office is in Northampton (NN2), in the West Northamptonshire local authority area, East Midlands. Show NN2 8SE on a map.
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What happens if O'Brien Heating Services 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 11582653
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 September 2018 (8 years ago)
- Registered office
- Brakendale Vyse Road, Boughton, Northampton, NN2 8SE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 20 September 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.
- Op Ventilations System Ltd2019
- Ouse Valley Plumbing Limited2014
- P A Cassidy (Mechanical Services) Limited1998
- Parsons Plumbing & Heating Services Ltd2025
- Percy's Plumbing & Heating Limited2015
- Phase Mechanical Projects Limited2011
- Phase Mechanical Services Limited2009
- Pi Building Services Ltd2008
All plumbing and heating companies in Northampton · All trades in Northampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are O'Brien Heating Services Limited's accounts due?
O'Brien Heating Services Limited's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is O'Brien Heating Services Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is O'Brien Heating Services Limited still trading?
O'Brien Heating Services Limited is listed as active on the Companies House register (checked 12 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 O'Brien Heating Services Limited do?
O'Brien Heating Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is O'Brien Heating Services Limited?
O'Brien Heating Services Limited was incorporated on 21 September 2018, 8 years ago.
What is the penalty if O'Brien Heating Services 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 O'Brien Heating Services Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.