- Companies
- Plumbers and heating engineers
- Newry
- Alliance Mechanical Limited
Alliance Mechanical Limited
- Company number
- NI728589
- Incorporated
- 15 Apr 20251 year trading
- Registered office
- Suite 4000 to 4025 6 Margaret Street, Newry, Down, BT34 1DF
- Nature of business
- Plumbing, heat and air-conditioning installation
Alliance Mechanical Limited is a 1-year-old private limited company registered in Newry, company number NI728589, one of 72 plumbing and heating companies in Newry. Its next accounts are due at Companies House on 15 January 2027, and its first CT600 is due at HMRC on 14 April 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 Alliance Mechanical Limited is registered
The registered office is in Newry (BT34), in the Newry, Mourne and Down local authority area, Northern Ireland. Show BT34 1DF on a map.
Other trade companies in BT34
- JMP Live LimitedElectricians
- SSL Solar & Electrical LimitedElectricians
- Ocn Construction LtdBuilders
- Warren Properties Ireland LimitedBuilders
- Rog Electrical LtdElectricians
- DMN Mechanics LimitedMotor traders
- M & M Consultants Ire LtdSpecialist contractors
- C Quinn Contracts LtdBuilders
Also registered at this address
3 other companies use the same registered office as Alliance Mechanical Limited.
- GND Electrix LimitedElectricians
- Mullins & Doherty Construction LimitedInstallers
- RB & Ak Autos LimitedMotor traders
What happens if Alliance Mechanical 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 15 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 16 Jan 2027 to 15 Feb 2027 | £150 |
| 1 to 3 months late | 16 Feb 2027 to 15 Apr 2027 | £375 |
| 3 to 6 months late | 16 Apr 2027 to 15 Jul 2027 | £750 |
| More than 6 months late | From 16 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- NI728589
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 April 2025 (1 year ago)
- Registered office
- Suite 4000 to 4025 6 Margaret Street, Newry, Down, BT34 1DF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 14 April 2026
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 Newry
Other active plumbing and heating companies registered in Newry.
- B&M Mechanical Ltd2024
- BC Gas Heating Ltd2024
- BML Plumbing and Heating Ltd2024
- Brooklawn Services Ltd2019
- Cathal McMahon Plumbing & Heating Ltd2021
- CJ Mechanical Ltd2017
- Condensation Solutions Ltd2016
- Cor Mac Plumbing and Heating Ltd2020
All plumbing and heating companies in Newry · All trades in Newry · Plumbers and heating engineers across the UK
Frequently asked questions
When are Alliance Mechanical Limited's accounts due?
Alliance Mechanical Limited's next accounts are due at Companies House by 15 January 2027 (in 94 days), covering the period to 30 April 2026.
When is Alliance Mechanical 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 14 April 2026, due by 14 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Alliance Mechanical Limited still trading?
Alliance Mechanical 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 Alliance Mechanical Limited do?
Alliance Mechanical Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Alliance Mechanical Limited?
Alliance Mechanical Limited was incorporated on 15 April 2025, 1 year ago.
What is the penalty if Alliance Mechanical 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 Alliance Mechanical 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.