- Companies
- Plumbers and heating engineers
- Mills and Heath Plumbing & Heating Ltd
Mills and Heath Plumbing & Heating Ltd
- Company number
- 12744711
- Incorporated
- 15 Jul 20206 years trading
- Registered office
- Berkley ST. Business Group Arena Building 100 Berkshire Drive, Wharfdale Road, Winnersh, Berkshire, RG41 5RD
- Nature of business
- Plumbing, heat and air-conditioning installation
Mills and Heath Plumbing & Heating Ltd is a 6-year-old private limited company registered in Winnersh, company number 12744711, one of the UK's plumbing and heating companies. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £7,343 (-69.9%) on the year before, to -£18K.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £22K against £40K owed within a year: 0.6 times cover.
- 2 employees on average, up from -2 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | -£18K | £22K | £40K | 2 | |
| 31 Jul 2024 | -£11K | £12K | £22K | -2 | |
| 31 Jul 2023 | £466 | £9,435 | £7,969 | -2 | |
| 31 Jul 2022 | £918 | £5,892 | £5,974 | -2 | |
| 31 Jul 2021 | -£2,321 | £7,629 | £11K | -2 |
Where Mills and Heath Plumbing & Heating Ltd is registered
The registered office is in Winnersh (RG41), in the Wokingham local authority area, South East. Show RG41 5RD on a map.
Other trade companies in RG41
- Sage&Row LtdCleaning companies
- Irfa LtdMechanics and garages
- Brit Brush Interiors LimitedPainters and decorators
- Apex Damp Solutions LtdPlasterers
- Aliseni Construction LtdBuilders
- Loddon Valley Roofing LtdRoofers
- Ionex Built LtdBuilders
- Blue Whale Property Maintenance LtdFloor and wall tilers
What happens if Mills and Heath Plumbing & 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 12744711
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 July 2020 (6 years ago)
- Registered office
- Berkley ST. Business Group Arena Building 100 Berkshire Drive, Wharfdale Road, Winnersh, Berkshire, RG41 5RD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 14 July 2025
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
Other active plumbing and heating companies.
Frequently asked questions
When are Mills and Heath Plumbing & Heating Ltd's accounts due?
Mills and Heath Plumbing & Heating Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Mills and Heath Plumbing & Heating Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Mills and Heath Plumbing & Heating Ltd still trading?
Mills and Heath Plumbing & Heating Ltd is listed as active on the Companies House register (checked 13 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 Mills and Heath Plumbing & Heating Ltd do?
Mills and Heath Plumbing & Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Mills and Heath Plumbing & Heating Ltd?
Mills and Heath Plumbing & Heating Ltd was incorporated on 15 July 2020, 6 years ago.
What is the penalty if Mills and Heath Plumbing & 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 Mills and Heath Plumbing & Heating Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.