- Companies
- Plumbers and heating engineers
- Southampton
- Simon Griffiths Plumbing and Heating Limited
Simon Griffiths Plumbing and Heating Limited
- Company number
- 16796423
- Incorporated
- 20 Oct 2025
- Registered office
- 4 the Brackens, Locks Heath, Southampton, SO31 6TU
- Nature of business
- Plumbing, heat and air-conditioning installation
Simon Griffiths Plumbing and Heating Limited is a newly incorporated private limited company registered in Southampton, company number 16796423, one of 246 plumbing and heating companies in Southampton. Its next accounts are due at Companies House on 20 July 2027, and its first CT600 is due at HMRC on 19 October 2027.
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.
Is this your company?
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Where Simon Griffiths Plumbing and Heating Limited is registered
The registered office is in Southampton (SO31), in the Fareham local authority area, South East. Show SO31 6TU on a map.
Other trade companies in SO31
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- Mars Eng. LtdMachinery repair and installation
- Amc Plumbing and Heating LtdPlumbers and heating engineers
- Pride & Bloom LtdLandscapers and gardeners
- Hampshire Heating and Cooling LtdPlumbers and heating engineers
- Kelpie Landscape & Build LtdFinishing trades
- FSC Facilities Services LtdInstallers
- Fitton & Redding Services LimitedMechanics and garages
What happens if Simon Griffiths Plumbing and Heating 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 20 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Jul 2027 to 20 Aug 2027 | £150 |
| 1 to 3 months late | 21 Aug 2027 to 20 Oct 2027 | £375 |
| 3 to 6 months late | 21 Oct 2027 to 20 Jan 2028 | £750 |
| More than 6 months late | From 21 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16796423
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 October 2025
- Registered office
- 4 the Brackens, Locks Heath, Southampton, SO31 6TU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (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.
- SJW Gas Services Limited2018
- Skylines Air Conditioning Ltd2011
- SM Systems Plumbing and Heating Ltd2021
- Smith & Webb Limited1998
- Solar Hut Ltd2022
- Solent Water Treatment Ltd2017
- South Coast Gas Ltd2023
- Southampton Gas & Plumbing Ltd2013
All plumbing and heating companies in Southampton · All trades in Southampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Simon Griffiths Plumbing and Heating Limited's accounts due?
Simon Griffiths Plumbing and Heating Limited's next accounts are due at Companies House by 20 July 2027 (in 280 days), covering the period to 31 October 2026.
When is Simon Griffiths Plumbing and Heating Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 19 October 2026, due by 19 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Simon Griffiths Plumbing and Heating Limited still trading?
Simon Griffiths Plumbing and Heating Limited 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 Simon Griffiths Plumbing and Heating Limited do?
Simon Griffiths Plumbing and Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Simon Griffiths Plumbing and Heating Limited?
Simon Griffiths Plumbing and Heating Limited was incorporated on 20 October 2025, less than a year ago.
What is the penalty if Simon Griffiths Plumbing and Heating 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 Simon Griffiths Plumbing and Heating Limited 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.