- Companies
- Plumbers and heating engineers
- Welwyn
- Warner Bros Plumbing and Heating Ltd
Warner Bros Plumbing and Heating Ltd
- Company number
- 09475588
- Incorporated
- 6 Mar 201511 years trading
- Registered office
- 13B Woodland Way, Welwyn, AL6 0RZ
- Nature of business
- Plumbing, heat and air-conditioning installation
Warner Bros Plumbing and Heating Ltd is a 11-year-old private limited company registered in Welwyn, company number 09475588, one of 11 plumbing and heating companies in Welwyn. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £29K (+16.6%) on the year before, to £201K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £205K against £21K owed within a year: 9.8 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £201K | £205K | £21K | 2 | |
| 31 Mar 2025 | £172K | £158K | £6,984 | 2 | |
| 31 Mar 2024 | £178K | £205K | £35K | 2 | |
| 31 Mar 2023 | £118K | £230K | £121K | 2 | |
| 31 Mar 2022 | £67K | £165K | £98K | 1 | |
| 31 Mar 2021 | £31K | £98K | £17K | 1 | |
| 31 Mar 2020 | -£20K | -£55K | £25K | 1 | |
| 31 Mar 2019 | -£20K | -£28K | £8,264 | ||
| 31 Mar 2018 | £6,977 | £12K | £4,789 | ||
| 31 Mar 2017 | £5,059 | £13K | £7,506 |
Who runs and owns Warner Bros Plumbing and Heating Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| L*** W*** | Director | Mar 2015 |
Person with significant control
Public contracts won
Warner Bros Plumbing and Heating Ltd has one public sector contract award on record (2026). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Epping Forest District Council | Provision of Repairs and Maintenance | Ceiling, not shown | 21 Jul 2026 |
Where Warner Bros Plumbing and Heating Ltd is registered
The registered office is in Welwyn (AL6), in the Welwyn Hatfield local authority area, East of England. Show AL6 0RZ on a map.
Other trade companies in AL6
- Herts Climate Solutions LtdPlumbers and heating engineers
- Cosmorepairs LtdRepair services
- Little Enterprise Group LtdProperty developers
- Sehiti Plumbing and Heating LtdPlumbers and heating engineers
- LMC Highway Design LtdCivil engineering
- Fox Huhu Trading LimitedBuilders
- Enclosure Zoolutions LtdProperty developers
- G.I. Installation Services LimitedBuilders
Also registered at this address
1 other company uses the same registered office as Warner Bros Plumbing and Heating Ltd.
- Warner Property Solutions LtdProperty developers
What happens if Warner Bros Plumbing and Heating 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 09475588
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 March 2015 (11 years ago)
- Registered office
- 13B Woodland Way, Welwyn, AL6 0RZ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 6 March 2026
- Previous names
- L Warner Ltd (until 29 Sep 2018)
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 Welwyn
Other active plumbing and heating companies registered in Welwyn.
- 360 Heating Ltd2014
- Aquaspark Contractors Limited2015
- C A Warner Ltd2015
- G & A Plumbing and Heating Engineers Limited2000
- Hertfordshire Premier Plumbing and Heating Ltd2018
- Herts Climate Solutions Ltd2026
- Oaklands Plumbing Company Ltd2026
- Sehiti Plumbing and Heating Ltd2026
All plumbing and heating companies in Welwyn · All trades in Welwyn · Plumbers and heating engineers across the UK
Frequently asked questions
When are Warner Bros Plumbing and Heating Ltd's accounts due?
Warner Bros Plumbing and Heating Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Warner Bros Plumbing and Heating Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Warner Bros Plumbing and Heating Ltd still trading?
Warner Bros Plumbing and Heating 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 Warner Bros Plumbing and Heating Ltd do?
Warner Bros Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Warner Bros Plumbing and Heating Ltd?
Warner Bros Plumbing and Heating Ltd was incorporated on 6 March 2015, 11 years ago.
Who runs Warner Bros Plumbing and Heating Ltd?
Warner Bros Plumbing and Heating Ltd has 1 active director, the longest-serving appointed in Mar 2015. Their names and service addresses are on the Companies House register.
Who owns Warner Bros Plumbing and Heating Ltd?
One person or company has significant control of Warner Bros Plumbing and Heating Ltd: an individual (owns 75% or more of the shares).
Has Warner Bros Plumbing and Heating Ltd won public sector contracts?
Yes. Warner Bros Plumbing and Heating Ltd has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Epping Forest District Council.
What is the penalty if Warner Bros Plumbing and Heating 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 Warner Bros Plumbing and Heating 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.