- Companies
- Plumbers and heating engineers
- London
- Oaj Plumbing Solutions Ltd
Oaj Plumbing Solutions Ltd
- Company number
- 16264431
- Incorporated
- 19 Feb 20251 year trading
- Registered office
- Flat 25 Gladstone House, 31 Dowells Street, London, SE10 9FF
- Nature of business
- Plumbing, heat and air-conditioning installation; Taxi operation
Oaj Plumbing Solutions Ltd is a 1-year-old private limited company registered in London, company number 16264431, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 19 November 2026, and its first CT600 is due at HMRC on 18 February 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 Oaj Plumbing Solutions Ltd is registered
The registered office is in London (SE10), in the Greenwich local authority area, London. Show SE10 9FF on a map.
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What happens if Oaj Plumbing Solutions 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 19 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 20 Nov 2026 to 19 Dec 2026 | £150 |
| 1 to 3 months late | 20 Dec 2026 to 19 Feb 2027 | £375 |
| 3 to 6 months late | 20 Feb 2027 to 19 May 2027 | £750 |
| More than 6 months late | From 20 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 16264431
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 February 2025 (1 year ago)
- Registered office
- Flat 25 Gladstone House, 31 Dowells Street, London, SE10 9FF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Taxi operation (SIC 49320) - Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 18 February 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 London
Other active plumbing and heating companies registered in London.
- Oakley & Co Heating Ltd2024
- Oasis Heating & Plumbing Ltd2022
- Obeys Maintenance Ltd2015
- Obv Mechanical Ltd2025
- Oc Heating Ltd2023
- Ocean Boiler Care Ltd2022
- Ocean Inspired Ltd2012
- Octopus Plumbing & Heating Ltd2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Oaj Plumbing Solutions Ltd's accounts due?
Oaj Plumbing Solutions Ltd's next accounts are due at Companies House by 19 November 2026 (in 37 days), covering the period to 28 February 2026.
When is Oaj Plumbing Solutions Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 18 February 2026, due by 18 February 2027, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Oaj Plumbing Solutions Ltd still trading?
Oaj Plumbing Solutions 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 Oaj Plumbing Solutions Ltd do?
Oaj Plumbing Solutions Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Taxi operation (SIC 49320).
How old is Oaj Plumbing Solutions Ltd?
Oaj Plumbing Solutions Ltd was incorporated on 19 February 2025, 1 year ago.
What is the penalty if Oaj Plumbing Solutions 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 Oaj Plumbing Solutions 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.