- Companies
- Plumbers and heating engineers
- Newtownards
- Gilnahirk Boiler Services Ltd
Gilnahirk Boiler Services Ltd
- Company number
- NI740434
- Incorporated
- 7 May 2026
- Registered office
- 25 Cairndore Walk, Newtownards, BT23 8PE
- Nature of business
- Plumbing, heat and air-conditioning installation
Gilnahirk Boiler Services Ltd is a newly incorporated private limited company registered in Newtownards, company number NI740434, one of 21 plumbing and heating companies in Newtownards. Its next accounts are due at Companies House on 7 February 2028, and its first CT600 is due at HMRC on 6 May 2028.
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.
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Where Gilnahirk Boiler Services Ltd is registered
The registered office is in Newtownards (BT23), in the Ards and North Down local authority area, Northern Ireland. Show BT23 8PE on a map.
Other trade companies in BT23
- Ards Comber Boiler Services LimitedPlumbers and heating engineers
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- Paxco LimitedMotor traders
- Valtori LtdMotor traders
- DJH Boiler Services (2026) LtdPlumbers and heating engineers
- SK Motor Trade & Tools LtdMotor traders
- Redline Vehicle Repairs LtdMechanics and garages
- JSW Siphonic Roof Drainage LtdRoofers
What happens if Gilnahirk Boiler Services 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 7 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 8 Feb 2028 to 7 Mar 2028 | £150 |
| 1 to 3 months late | 8 Mar 2028 to 7 May 2028 | £375 |
| 3 to 6 months late | 8 May 2028 to 7 Aug 2028 | £750 |
| More than 6 months late | From 8 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- NI740434
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 May 2026
- Registered office
- 25 Cairndore Walk, Newtownards, BT23 8PE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (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 Newtownards
Other active plumbing and heating companies registered in Newtownards.
- GRS Plumbing and Heating Ltd2023
- Hydrogas(N.I.) Ltd2021
- J James N.I. Ltd2025
- Jo Leonard Plumbing and Heating Contractor Ltd2019
- Killinchy Plumbing & Heating Ltd2026
- Matthew McDowell Heating & Plumbing Ltd2017
- Orcas Systems Ltd1997
- P J Hughes Plumbing & Heating Ltd2005
All plumbing and heating companies in Newtownards · All trades in Newtownards · Plumbers and heating engineers across the UK
Frequently asked questions
When are Gilnahirk Boiler Services Ltd's accounts due?
Gilnahirk Boiler Services Ltd's next accounts are due at Companies House by 7 February 2028 (in 481 days), covering the period to 31 May 2027.
When is Gilnahirk Boiler Services Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 6 May 2027, due by 6 May 2028, and one for the period to 31 May 2027, due by 31 May 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Gilnahirk Boiler Services Ltd still trading?
Gilnahirk Boiler Services Ltd 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 Gilnahirk Boiler Services Ltd do?
Gilnahirk Boiler Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Gilnahirk Boiler Services Ltd?
Gilnahirk Boiler Services Ltd was incorporated on 7 May 2026, less than a year ago.
What is the penalty if Gilnahirk Boiler Services 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 Gilnahirk Boiler Services Ltd 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.