- Companies
- Plumbers and heating engineers
- Bury St Edmunds
- C O'Brien Plumbing Ltd
C O'Brien Plumbing Ltd
- Company number
- 09288859
- Incorporated
- 30 Oct 201411 years trading
- Registered office
- 8 Lea Road, Elmswell, Bury St Edmunds, Suffolk, IP30 9YQ
- Nature of business
- Plumbing, heat and air-conditioning installation
C O'Brien Plumbing Ltd is a 11-year-old private limited company registered in Bury St Edmunds, company number 09288859, one of 65 plumbing and heating companies in Bury St Edmunds. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £16K (+102.2%) on the year before, to £343.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £96K against £54K owed within a year: 1.8 times cover.
- 1 employee on average, down from 2 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £343 | £11K | £96K | £54K | 1 |
| 31 Oct 2024 | -£15K | £0 | £69K | £37K | 2 |
| 31 Oct 2023 | £11K | £29K | £46K | £39K | 1 |
| 31 Oct 2022 | £149 | £2,519 | £48K | £31K | 2 |
| 31 Oct 2021 | £703 | -£712 | £28K | £4,567 | 2 |
| 31 Oct 2020 | £130 | £24K | £39K | £11K | 2 |
| 31 Oct 2019 | £15K | £33K | £28K | 1 | |
| 31 Oct 2018 | £13K | £27K | £21K | ||
| 31 Oct 2017 | £2,482 | £84K | £94K | ||
| 31 Oct 2016 | £880 | £13K | £16K |
Where C O'Brien Plumbing Ltd is registered
The registered office is in Bury St Edmunds (IP30), in the Mid Suffolk local authority area, East of England. Show IP30 9YQ on a map.
Other trade companies in IP30
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- Vault Motorsport LimitedMotor traders
- JD Carpentry & Construction LimitedBuilders
- Gobins LimitedProperty developers
- 4I Civils & Groundworks LtdInstallers
- Lawshall Motorworks LtdMotor traders
- SK Prime Enterprise LimitedMotor traders
- Hazaraglobaltraders LtdMotor traders
What happens if C O'Brien Plumbing 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 09288859
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 October 2014 (11 years ago)
- Registered office
- 8 Lea Road, Elmswell, Bury St Edmunds, Suffolk, IP30 9YQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 30 October 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 Bury St Edmunds
Other active plumbing and heating companies registered in Bury St Edmunds.
- Carberry Plumbing and Heating Ltd2018
- Checkmark Ltd2023
- Circulation Solutions Limited2016
- CMK Assured Heating and Plumbing Ltd2018
- Crossman Home Improvement Services Ltd2023
- Crump Bros. Ltd2024
- Cunningham Plumbing & Heating Ltd2024
- D T Bettoney Plumbing & Heating Ltd2012
All plumbing and heating companies in Bury St Edmunds · All trades in Bury St Edmunds · Plumbers and heating engineers across the UK
Frequently asked questions
When are C O'Brien Plumbing Ltd's accounts due?
C O'Brien Plumbing Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is C O'Brien Plumbing Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is C O'Brien Plumbing Ltd still trading?
C O'Brien Plumbing 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 C O'Brien Plumbing Ltd do?
C O'Brien Plumbing Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is C O'Brien Plumbing Ltd?
C O'Brien Plumbing Ltd was incorporated on 30 October 2014, 11 years ago.
What is the penalty if C O'Brien Plumbing 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 C O'Brien Plumbing 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.