- Companies
- Plumbers and heating engineers
- Belfast
- Arc Air Support Ltd
Arc Air Support Ltd
- Company number
- NI721559
- Incorporated
- 23 Sep 20242 years trading
- Registered office
- Suite 303, 7 Donegall Square West, Belfast, BT1 6JH
- Nature of business
- Plumbing, heat and air-conditioning installation
Arc Air Support Ltd is a 2-year-old private limited company registered in Belfast, company number NI721559, one of 99 plumbing and heating companies in Belfast. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 up £2,675 on the year before, to £2,705.
- Current assets of £3,458 against £753 owed within a year: 4.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2025 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £2,705 | £3,458 | £753 | 0 | |
| 31 Mar 2025 | £30 | £30 | 0 |
Where Arc Air Support Ltd is registered
The registered office is in Belfast (BT1), in the Belfast local authority area, Northern Ireland. Show BT1 6JH on a map.
Other trade companies in BT1
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- Geohac LimitedGroundworks and demolition
- XM Vehicle Solutions LimitedMotor traders
- Shine Renewables NI LimitedElectricians
- The Rathstone Group LtdCleaning companies
- Chenyukeji LtdMotor traders
- Linnexttech Shop LtdMotor traders
- Techright Environmental Ireland LtdCleaning companies
What happens if Arc Air Support 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 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- NI721559
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 September 2024 (2 years ago)
- Registered office
- Suite 303, 7 Donegall Square West, Belfast, BT1 6JH
- 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 2026
- Last confirmation statement
- 22 September 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 Belfast
Other active plumbing and heating companies registered in Belfast.
- Ashlain PVT Limited2025
- Ats Gas Services Limited2015
- B.L. Refrigeration & Air Conditioning Limited1978
- B.S. Holdings Limited2000
- Bathroom Fitouts NI Ltd2026
- BBS Plumbing and Heating Services Ltd2025
- Belfast Gas Ltd2026
- Belfast Powerflushing Ltd2023
All plumbing and heating companies in Belfast · All trades in Belfast · Plumbers and heating engineers across the UK
Frequently asked questions
When are Arc Air Support Ltd's accounts due?
Arc Air Support Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Arc Air Support Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Arc Air Support Ltd still trading?
Arc Air Support Ltd is listed as active on the Companies House register (checked 13 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 Arc Air Support Ltd do?
Arc Air Support Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Arc Air Support Ltd?
Arc Air Support Ltd was incorporated on 23 September 2024, 2 years ago.
What is the penalty if Arc Air Support 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 Arc Air Support Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.