- Companies
- Plumbers and heating engineers
- Belfast
- Ajm Plumbing & Heating NI Limited
Ajm Plumbing & Heating NI Limited
- Company number
- NI668324
- Incorporated
- 9 Mar 20206 years trading
- Registered office
- Aisling House, 50 Stranmillis Embankment, Belfast, BT9 5FL
- Nature of business
- Plumbing, heat and air-conditioning installation
Ajm Plumbing & Heating NI Limited is a 6-year-old private limited company registered in Belfast, company number NI668324, one of 99 plumbing and heating companies in Belfast. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £5,107 (-5.1%) on the year before, to £96K.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £57K against £48K owed within a year: 1.2 times cover.
- 1 employee on average, up from 0 the year before.
- 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 Mar 2025 | £96K | £57K | £48K | 1 | |
| 31 Mar 2024 | £101K | £55K | £51K | 0 | |
| 31 Mar 2023 | £77K | £32K | £64K | 0 | |
| 31 Mar 2022 | £78K | £42K | £85K | 0 | |
| 31 Mar 2021 | £100 |
Where Ajm Plumbing & Heating NI Limited is registered
The registered office is in Belfast (BT9), in the Belfast local authority area, Northern Ireland. Show BT9 5FL on a map.
Other trade companies in BT9
- Carnkilly Estates LimitedProperty developers
- Roux Flow and Co LtdPlumbers and heating engineers
- Ormeau Parkview LtdProperty developers
- ZK Auto LimitedMotor traders
- Alina Rista Motors LtdMotor traders
- Andrews Sheet Metal Works LtdPlumbers and heating engineers
- Carbtuneshop LtdMotor traders
- Red Compliance Electrical Services LimitedElectricians
Also registered at this address
8 other companies use the same registered office as Ajm Plumbing & Heating NI Limited.
- Carenna Developments LimitedProperty developers
- Carenna Investments LimitedProperty developers
- Carnkilly Estates LimitedProperty developers
- Catherine Street Properties LimitedProperty developers
- D Electrician LimitedElectricians
- Nethercote Equine LimitedMotor traders
- Project Iver LtdProperty developers
- Tercet Properties LtdProperty developers
What happens if Ajm Plumbing & Heating NI 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- NI668324
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 March 2020 (6 years ago)
- Registered office
- Aisling House, 50 Stranmillis Embankment, Belfast, BT9 5FL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 8 March 2026
- Previous names
- Eoghan Rua Ireland No.241 Limited (until 19 Apr 2021)
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 Belfast
Other active plumbing and heating companies registered in Belfast.
- Anderson Heating Services Ltd2025
- Anderson Mechanical Limited2018
- Andrews Sheet Metal Works Ltd2026
- Arc Air Support Ltd2024
- Ashlain PVT Limited2025
- Ats Gas Services Limited2015
- B.L. Refrigeration & Air Conditioning Limited1978
- B.S. Holdings Limited2000
All plumbing and heating companies in Belfast · All trades in Belfast · Plumbers and heating engineers across the UK
Frequently asked questions
When are Ajm Plumbing & Heating NI Limited's accounts due?
Ajm Plumbing & Heating NI Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Ajm Plumbing & Heating NI Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Ajm Plumbing & Heating NI Limited still trading?
Ajm Plumbing & Heating NI 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 Ajm Plumbing & Heating NI Limited do?
Ajm Plumbing & Heating NI Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Ajm Plumbing & Heating NI Limited?
Ajm Plumbing & Heating NI Limited was incorporated on 9 March 2020, 6 years ago.
What is the penalty if Ajm Plumbing & Heating NI 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 Ajm Plumbing & Heating NI 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.