- Companies
- Plumbers and heating engineers
- Barry
- W Mullett Limited
W Mullett Limited
- Company number
- 00693071
- Incorporated
- 17 May 196165 years trading
- Registered office
- Unit 5 Verlon Close, Ty Verlon Industrial Estate, Barry, CF63 2BE
- Nature of business
- Plumbing, heat and air-conditioning installation
W Mullett Limited is a 65-year-old private limited company registered in Barry, company number 00693071, one of 20 plumbing and heating companies in Barry. 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 £33K (-15.5%) on the year before, to £181K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £209K against £34K owed within a year: 6.2 times cover.
- 5 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 May 2026 | £181K | £166K | £209K | £34K | 5 |
| 31 May 2025 | £214K | £203K | £245K | £38K | 5 |
| 31 May 2024 | £249K | £254K | £323K | £82K | 6 |
| 31 May 2023 | £144K | £164K | £206K | £72K | 6 |
| 31 May 2022 | £121K | £108K | £163K | £55K | 6 |
| 31 May 2021 | £115K | £125K | £168K | £69K | 6 |
| 31 May 2020 | £184K | £160K | £236K | £64K | 6 |
| 31 May 2019 | £184K | £170K | £322K | £150K | 5 |
| 31 May 2018 | £135K | £177K | £255K | £124K | 6 |
| 31 May 2017 | £90K | £117K | £212K | £127K | 5 |
Who runs and owns W Mullett Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| I*** M*** | Director | Jan 2017 |
| M*** M*** | Secretary | before Dec 1990 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| I*** M*** | Director | Nov 2023 | |
| M*** M*** | Director | Jan 2010 |
People with significant control (2)
Where W Mullett Limited is registered
The registered office is in Barry (CF63), in the Vale of Glamorgan local authority area, Wales. Show CF63 2BE on a map.
Other trade companies in CF63
- A Class Renovations and Maintenance LtdBuilders
- Vaddempudi LtdCleaning companies
- G Altea Properties LtdProperty developers
- D T Smith and Grandsons LtdProperty developers
- Cardiff Road Car Detailling LtdCleaning companies
- Coast to Coast Coatings LtdPainters and decorators
- JF Coatings LtdPainters and decorators
- Onestop Automotive Vale LtdMachinery repair and installation
What happens if W Mullett Limited 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
- 00693071
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 May 1961 (65 years ago)
- Registered office
- Unit 5 Verlon Close, Ty Verlon Industrial Estate, Barry, CF63 2BE
- 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
- 26 September 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 Barry
Other active plumbing and heating companies registered in Barry.
- Zest Plumbing and Heating Limited2016
- Apex Cooling Ltd2023
- CRJ Group Limited2022
- DW Plumbing Limited2017
- Eco Heating Limited2005
- H.Marshall Plumbing and Heating Services Ltd2024
- J Giddings Plumbing and Heating Limited2026
- JSH Plumbing & Heating Ltd2017
All plumbing and heating companies in Barry · All trades in Barry · Plumbers and heating engineers across the UK
Frequently asked questions
When are W Mullett Limited's accounts due?
W Mullett Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is W Mullett Limited'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 W Mullett Limited still trading?
W Mullett Limited 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 W Mullett Limited do?
W Mullett Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is W Mullett Limited?
W Mullett Limited was incorporated on 17 May 1961, 65 years ago.
Who runs W Mullett Limited?
W Mullett Limited has 1 active director, the longest-serving appointed in Jan 2017. Their names and service addresses are on the Companies House register.
Who owns W Mullett Limited?
2 people or companies have significant control of W Mullett Limited: an individual (owns 25% to 50% of the shares); an individual (owns 50% to 75% of the shares).
What is the penalty if W Mullett Limited 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 W Mullett Limited 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.