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- MR Radiator Limited
Company profile · Plumbers and heating engineers
MR Radiator Limited
MR Radiator Limited is a 9-year-old private limited company registered in Portchester, company number 10974516, 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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Financial snapshot, 2025
From the balance sheet at 31 July 2025, as filed at Companies House.
MR Radiator Limited over the years
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 £11 (+44%) on the year before, to £36.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £86K against £64K owed within a year: 1.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £36 | £1,689 | £86K | £64K | 1 |
| 31 Jul 2024 | £25 | £857 | £55K | £40K | 1 |
| 31 Jul 2023 | £73 | £19K | £47K | £28K | 2 |
| 31 Jul 2022 | -£742 | £2,831 | £39K | £20K | 2 |
| 31 Jul 2021 | £29 | £16K | £55K | £27K | 2 |
| 31 Jul 2020 | £13 | £6,487 | £56K | £21K | |
| 31 Jul 2019 | £271 | £3,960 | £14K | £16K | |
| 31 Jul 2018 | £1 |
Where MR Radiator Limited is registered
The registered office is in Portchester (PO16), in the Fareham local authority area, South East. Show PO16 8JQ on a map.
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What happens if MR Radiator 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 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
- 10974516
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 September 2017 (9 years ago)
- Registered office
- 43 Anson Grove, Portchester, Portchester, Hampshire, PO16 8JQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 20 September 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.
- Lifetime Plumbing & Heating (Ne) Ltd2017
- Heat in London Ltd2017
- Flo Well Drainage & Plumbing Ltd2017
- DBS Piping Ltd2017
- Osborne Plumbing & Heating Services Ltd2017
- PHC Services Ltd2017
- L. Crisp Plumbing & Gas Solutions Ltd2017
- London Plumbing & Heating Services Limited2017
Plumbers and heating engineers across the UK
Frequently asked questions
When are MR Radiator Limited's accounts due?
MR Radiator Limited's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is MR Radiator Limited'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 MR Radiator Limited still trading?
MR Radiator Limited is listed as active on the Companies House register (checked 12 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 MR Radiator Limited do?
MR Radiator Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is MR Radiator Limited?
MR Radiator Limited was incorporated on 21 September 2017, 9 years ago.
What is the penalty if MR Radiator 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 MR Radiator Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.