- Companies
- Plumbers and heating engineers
- Southampton
- MPH South Ltd
MPH South Ltd
- Company number
- 17000552
- Incorporated
- 30 Jan 2026
- Registered office
- 1ST Floor Chilworth Point, 1 Chilworth Road, Southampton, Hampshire, SO16 7JQ
- Nature of business
- Plumbing, heat and air-conditioning installation
MPH South Ltd is a newly incorporated private limited company registered in Southampton, company number 17000552, one of 246 plumbing and heating companies in Southampton. Its next accounts are due at Companies House on 30 October 2027, and its first CT600 is due at HMRC on 29 January 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where MPH South Ltd is registered
The registered office is in Southampton (SO16), in the Southampton local authority area, South East. Show SO16 7JQ on a map.
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- Coastline Living LimitedProperty developers
- STN Brickwork LimitedBuilders
- Bam M.E.P LtdPlumbers and heating engineers
- PPK Carpentry LimitedJoiners and carpenters
- Law Building Facilities LtdBuilders
- Liberty Link Investments LtdProperty developers
- Pathway Cars UK LtdMotor traders
Also registered at this address
10 other companies use the same registered office as MPH South Ltd.
- BDJ Homes LimitedProperty developers
- Broyst Group LimitedProperty developers
- Camargue Property Developments LimitedProperty developers
- City Construction & Maintenance LimitedFinishing trades
- Excel Preparation and Coating Specialist LimitedPainters and decorators
- Excel Uhp LimitedPainters and decorators
- Infraroad Group LtdSpecialist contractors
- JC Rae Decorating LtdPainters and decorators
- Precision Builders Management LimitedInstallers
- Precision Builders South LimitedBuilders
What happens if MPH 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Oct 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 30 Jan 2028 | £375 |
| 3 to 6 months late | 31 Jan 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 17000552
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 January 2026
- Registered office
- 1ST Floor Chilworth Point, 1 Chilworth Road, Southampton, Hampshire, SO16 7JQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
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 Southampton
Other active plumbing and heating companies registered in Southampton.
- MPK Plumbing & Gas Services Limited2016
- MTV Plumbing and Heating Ltd2019
- My New Bathroom Ltd2021
- N Brown Plumbing & Heating Ltd.2001
- Nabline Ltd2021
- New Forest Air Conditioning Ltd2018
- New Forest Emergency Plumbing Limited2021
- Nova Plumbing and Heating Ltd2008
All plumbing and heating companies in Southampton · All trades in Southampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are MPH South Ltd's accounts due?
MPH South Ltd's next accounts are due at Companies House by 30 October 2027 (in 382 days), covering the period to 31 January 2027.
When is MPH South Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 29 January 2027, due by 29 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is MPH South Ltd still trading?
MPH 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 MPH South Ltd do?
MPH South Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is MPH South Ltd?
MPH South Ltd was incorporated on 30 January 2026, less than a year ago.
What is the penalty if MPH 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 MPH 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.