- Companies
- Plumbers and heating engineers
- Romsey
- Prime Plumbing and Heating (South) Ltd
Prime Plumbing and Heating (South) Ltd
- Company number
- 13059339
- Incorporated
- 3 Dec 20205 years trading
- Registered office
- 24 the Vikings, Romsey, SO51 5RG
- Nature of business
- Plumbing, heat and air-conditioning installation
Prime Plumbing and Heating (South) Ltd is a 5-year-old private limited company registered in Romsey, company number 13059339, one of 17 plumbing and heating companies in Romsey. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 up £11K (+58.8%) on the year before, to £29K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £93K against £80K owed within a year: 1.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Dec 2025 | £29K | £17K | £93K | £80K | 0 |
| 31 Dec 2024 | £18K | £21K | £82K | £73K | 0 |
| 31 Dec 2023 | £827 | £9,459 | £29K | £38K | 1 |
| 31 Dec 2022 | £1,187 | £9,971 | £12K | £18K | 1 |
| 31 Dec 2021 | £100 | £100 |
Where Prime Plumbing and Heating (South) Ltd is registered
The registered office is in Romsey (SO51), in the Test Valley local authority area, South East. Show SO51 5RG on a map.
Other trade companies in SO51
- Automarketgroup LtdMotor traders
- Mitchells Magic LtdPainters and decorators
- Emmerdale Agriculture Online LtdLandscapers and gardeners
- McAy Sprays LtdPainters and decorators
- SB Maintenance LimitedFacilities management
- Oscar Landscaping and Building LimitedBuilders
- Haime Construction LimitedProperty developers
- Black Lake Operations LtdRoofers
What happens if Prime Plumbing and Heating (South) 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 13059339
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 December 2020 (5 years ago)
- Registered office
- 24 the Vikings, Romsey, SO51 5RG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 21 November 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 in Romsey
Other active plumbing and heating companies registered in Romsey.
- RHB Plumbing and Heating Solutions Ltd2025
- S&T Heating Services Ltd2020
- Say Southern Plumbing & Heating Limited2023
- Semco Services Limited2000
- Thomas Air Services (Tas) Ltd2020
- TW Plumbing and Heating Limited2019
- A&E Drainage and Plumbing Ltd2025
- Abel Environmental Services Limited1989
All plumbing and heating companies in Romsey · All trades in Romsey · Plumbers and heating engineers across the UK
Frequently asked questions
When are Prime Plumbing and Heating (South) Ltd's accounts due?
Prime Plumbing and Heating (South) Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Prime Plumbing and Heating (South) Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Prime Plumbing and Heating (South) Ltd still trading?
Prime Plumbing and Heating (South) 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 Prime Plumbing and Heating (South) Ltd do?
Prime Plumbing and Heating (South) Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Prime Plumbing and Heating (South) Ltd?
Prime Plumbing and Heating (South) Ltd was incorporated on 3 December 2020, 5 years ago.
What is the penalty if Prime Plumbing and Heating (South) 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 Prime Plumbing and Heating (South) 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.