- Companies
- Plumbers and heating engineers
- London
- Theo Plumbing Ltd
Theo Plumbing Ltd
- Company number
- 15734430
- Incorporated
- 22 May 20242 years trading
- Registered office
- 1 Wallis Walk, London, E16 2XR
- Nature of business
- Plumbing, heat and air-conditioning installation
Theo Plumbing Ltd is a 2-year-old private limited company registered in London, company number 15734430, one of 2,972 plumbing and heating companies in London. 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 £120 on the year before, to -£120.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | -£120 | -£120 | 0 | ||
| 31 May 2024 | £0 | £0 | 0 |
Who runs and owns Theo Plumbing Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| N*** K*** | Director | May 2024 |
Person with significant control
Where Theo Plumbing Ltd is registered
The registered office is in London (E16), in the Newham local authority area, London. Show E16 2XR on a map.
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What happens if Theo 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 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
- 15734430
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 May 2024 (2 years ago)
- Registered office
- 1 Wallis Walk, London, E16 2XR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 21 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 London
Other active plumbing and heating companies registered in London.
- Therm-Fix Ltd2020
- Thermacool Facilities Services Ltd2014
- Thermacore Renewables Ltd2026
- Thermaflo Ltd2026
- Thermal Efficient Ltd2020
- Thermal Solutions Ltd2024
- Thermasure Ltd2022
- Thermoflow Heating & Plumbing Ltd2026
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Theo Plumbing Ltd's accounts due?
Theo Plumbing 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 Theo Plumbing 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 Theo Plumbing Ltd still trading?
Theo 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 Theo Plumbing Ltd do?
Theo Plumbing Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Theo Plumbing Ltd?
Theo Plumbing Ltd was incorporated on 22 May 2024, 2 years ago.
Who runs Theo Plumbing Ltd?
Theo Plumbing Ltd has 1 active director, the longest-serving appointed in May 2024. Their names and service addresses are on the Companies House register.
Who owns Theo Plumbing Ltd?
One person or company has significant control of Theo Plumbing Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Theo 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 Theo 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.