- Companies
- Plumbers and heating engineers
- Southampton
- Ai Plumbing and Heating Southampton Limited
Ai Plumbing and Heating Southampton Limited
- Company number
- 15327476
- Incorporated
- 4 Dec 20232 years trading
- Registered office
- Office Cca Morgans Yard Shepherds Road, Bartley, Southampton, SO40 2LH
- Nature of business
- Plumbing, heat and air-conditioning installation
Ai Plumbing and Heating Southampton Limited is a 2-year-old private limited company registered in Southampton, company number 15327476, one of 246 plumbing and heating companies in Southampton. 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 down £28K (-106%) on the year before, to -£1,607.
- Current assets of £2,524 against £9,440 owed within a year: 0.3 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | -£1,607 | £2,524 | £9,440 | 2 | |
| 31 Dec 2024 | £27K | £39K | £18K | 2 |
Where Ai Plumbing and Heating Southampton Limited is registered
The registered office is in Southampton (SO40), in the New Forest local authority area, South East. Show SO40 2LH on a map.
Other trade companies in SO40
- DW Exterior Cleaning LtdCleaning companies
- Eco Clean New Forest LtdCleaning companies
- Refine Property & Marine Services LtdCleaning companies
- Evergleam Cleaning Solutions LtdCleaning companies
- JMD Building Services LimitedBuilders
- South Coast Landscape and Groundworks LtdBuilders
- A.W. Berry Developments LtdSpecialist contractors
- MLK Services LimitedSpecialist contractors
Also registered at this address
2 other companies use the same registered office as Ai Plumbing and Heating Southampton Limited.
- Dorling Electrical Services LimitedElectricians
- Robert Smith Landscape and Gardening Maintenance LimitedLandscapers and gardeners
What happens if Ai Plumbing and Heating Southampton 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 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
- 15327476
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 December 2023 (2 years ago)
- Registered office
- Office Cca Morgans Yard Shepherds Road, Bartley, Southampton, SO40 2LH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 3 December 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 Southampton
Other active plumbing and heating companies registered in Southampton.
- Aic Heating and Plumbing Services Ltd2024
- Air 2 Heat Renewable Energy Ltd2022
- Air Cool Mechanical Services Ltd2018
- Ajb Mechanical Services Limited2016
- Alford Plumbing & Heating Ltd2007
- Allair Services Ltd2022
- Amc Plumbing and Heating Ltd2026
- Amesbury Plumbing & Heating Limited2015
All plumbing and heating companies in Southampton · All trades in Southampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Ai Plumbing and Heating Southampton Limited's accounts due?
Ai Plumbing and Heating Southampton Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Ai Plumbing and Heating Southampton Limited'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 Ai Plumbing and Heating Southampton Limited still trading?
Ai Plumbing and Heating Southampton 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 Ai Plumbing and Heating Southampton Limited do?
Ai Plumbing and Heating Southampton Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Ai Plumbing and Heating Southampton Limited?
Ai Plumbing and Heating Southampton Limited was incorporated on 4 December 2023, 2 years ago.
What is the penalty if Ai Plumbing and Heating Southampton 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 Ai Plumbing and Heating Southampton 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.