- Companies
- Plumbers and heating engineers
- Carterton
- Oxyplumb Ltd
Oxyplumb Ltd
- Company number
- 11389270
- Incorporated
- 30 May 20188 years trading
- Registered office
- 34 Ashfield Road, Carterton, Oxfordshire, OX18 3RD
- Nature of business
- Plumbing, heat and air-conditioning installation
Oxyplumb Ltd is a 8-year-old private limited company registered in Carterton, company number 11389270, one of 10 plumbing and heating companies in Carterton. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £14K (-54.8%) on the year before, to £11K.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £18K against £71K owed within a year: 0.3 times cover.
- 6 employees on average, up from 5 the year before.
- 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 May 2025 | £11K | £18K | £71K | 6 | |
| 31 May 2024 | £25K | £71K | £83K | 5 | |
| 31 May 2023 | £6,778 | £46K | £54K | 6 | |
| 31 May 2022 | £11K | £72K | £52K | 5 | |
| 31 May 2021 | £2,306 | £69K | £104K | 4 | |
| 31 May 2020 | £19K | £49K | £45K | 7 | |
| 31 May 2019 | £5,574 | £17K | £17K | 6 |
Where Oxyplumb Ltd is registered
The registered office is in Carterton (OX18), in the West Oxfordshire local authority area, South East. Show OX18 3RD on a map.
Other trade companies in OX18
- Roof Oxford LimitedBuilders
- MJ Iron & Earth Ltd.Machinery repair and installation
- King Groundwork & Landscaping LtdSpecialist contractors
- Delta London Decorate LtdPainters and decorators
- Hayes & Cole LimitedCivil engineering
- CW Construction Consultancy LtdBuilders
- 99 Problems LtdLandscapers and gardeners
- Pressed for Time Construction Cleaning LtdCleaning companies
What happens if Oxyplumb 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11389270
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 May 2018 (8 years ago)
- Registered office
- 34 Ashfield Road, Carterton, Oxfordshire, OX18 3RD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 16 May 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 Carterton
Other active plumbing and heating companies registered in Carterton.
- Revilo Plumbing & Heating Limited2022
- V4 Renewable Solutions Limited2023
- Ysters Ltd2025
- Carterton Heating and Plumbing Services Limited2007
- Central Heating Maintenance (Oxfordshire) Ltd2010
- Coppercraft Engineering Ltd2022
- Detail Bathrooms Limited2025
- Howitt's Installed Limited2012
All plumbing and heating companies in Carterton · All trades in Carterton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Oxyplumb Ltd's accounts due?
Oxyplumb Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Oxyplumb Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Oxyplumb Ltd still trading?
Oxyplumb 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 Oxyplumb Ltd do?
Oxyplumb Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Oxyplumb Ltd?
Oxyplumb Ltd was incorporated on 30 May 2018, 8 years ago.
What is the penalty if Oxyplumb 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 Oxyplumb 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.