- Companies
- Plumbers and heating engineers
- Gosport
- D Mills Plumbing Services Ltd
D Mills Plumbing Services Ltd
- Company number
- 04494445
- Incorporated
- 25 Jul 200224 years trading
- Registered office
- TML House, 1A the Anchorage, Gosport, Hampshire, PO12 1LY
- Nature of business
- Plumbing, heat and air-conditioning installation
D Mills Plumbing Services Ltd is a 24-year-old private limited company registered in Gosport, company number 04494445, one of 41 plumbing and heating companies in Gosport. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £15K (-80.6%) on the year before, to -£33K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £11K against £49K owed within a year: 0.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | -£33K | £6,374 | £11K | £49K | 2 |
| 30 Sep 2024 | -£18K | £3,936 | £12K | £37K | 2 |
| 30 Sep 2023 | -£6,904 | £4,047 | £4,623 | £20K | 2 |
| 30 Sep 2022 | -£6,130 | £2,028 | £4,728 | £22K | 2 |
| 30 Sep 2021 | £1,461 | £3,674 | £16K | £30K | 2 |
| 30 Sep 2020 | £1,264 | £1,591 | £6,268 | £9,569 | 2 |
| 30 Sep 2019 | £1,215 | £1,427 | £8,068 | £13K | 2 |
| 30 Sep 2018 | £103 | £1,489 | £9,669 | £17K | 2 |
| 30 Sep 2017 | £171 | £1,481 | £14K | £14K | 3 |
| 30 Sep 2016 | £168 | £2,788 | £16K | £20K |
Where D Mills Plumbing Services Ltd is registered
The registered office is in Gosport (PO12), in the Gosport local authority area, South East. Show PO12 1LY on a map.
Other trade companies in PO12
- Paws at 32 LtdCleaning companies
- New Horizons (Hampshire) LtdFinishing trades
- Smart Energy Advisers LtdElectricians
- Easy Clean (Southern) LtdCleaning companies
- RHR Energy LtdPlumbers and heating engineers
- Mitchell Tsco LtdCivil engineering
- Lyle Morgans Master Thatcher LtdRoofers
- Pebbles Cleaning Group LtdCleaning companies
Shared registered office
61 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if D Mills Plumbing Services 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 04494445
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 July 2002 (24 years ago)
- Registered office
- TML House, 1A the Anchorage, Gosport, Hampshire, PO12 1LY
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 25 July 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 Gosport
Other active plumbing and heating companies registered in Gosport.
- D&A Install Services Limited2021
- Daniel Reekie Limited2017
- DS Refrigeration & Air Conditioning Ltd2026
- Ecoheat South Ltd2018
- Fairweather Plumbing and Heating Ltd2025
- Gas Safe South Ltd2026
- Gasco Solent Heating Limited2015
- GMC Mechanical Ltd2023
All plumbing and heating companies in Gosport · All trades in Gosport · Plumbers and heating engineers across the UK
Frequently asked questions
When are D Mills Plumbing Services Ltd's accounts due?
D Mills Plumbing Services Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is D Mills Plumbing Services Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is D Mills Plumbing Services Ltd still trading?
D Mills Plumbing Services 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 D Mills Plumbing Services Ltd do?
D Mills Plumbing Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is D Mills Plumbing Services Ltd?
D Mills Plumbing Services Ltd was incorporated on 25 July 2002, 24 years ago.
What is the penalty if D Mills Plumbing Services 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 D Mills Plumbing Services 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.