- Companies
- Installers
- Londonderry
- McCallion Interior Systems Ltd
McCallion Interior Systems Ltd
- Company number
- NI730697
- Incorporated
- 20 Jun 20251 year trading
- Registered office
- 99 Glenroe Park, Dungiven, Londonderry, BT47 4DZ
- Nature of business
- Other construction installation
McCallion Interior Systems Ltd is a 1-year-old private limited company registered in Londonderry, company number NI730697, one of 17 installation companies (insulation, lifts, shutters and similar) in Londonderry. Its next accounts are due at Companies House on 20 March 2027, and its first CT600 is due at HMRC on 19 June 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.
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Financial snapshot, 2026
From the balance sheet at 30 June 2026, as filed at Companies House.
Where McCallion Interior Systems Ltd is registered
The registered office is in Londonderry (BT47), in the Causeway Coast and Glens local authority area, Northern Ireland. Show BT47 4DZ on a map.
Other trade companies in BT47
- RNK Contracts LimitedGroundworks and demolition
- Den Electrical LtdElectricians
- BDK Consulting LimitedProperty developers
- Oakline Engineering LtdInstallers
- Killew Property Services LimitedFacilities management
- PH Autobody LimitedMechanics and garages
- C Doherty Autos LtdMechanics and garages
- CPMH LtdBuilders
What happens if McCallion Interior Systems 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 20 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Mar 2027 to 20 Apr 2027 | £150 |
| 1 to 3 months late | 21 Apr 2027 to 20 Jun 2027 | £375 |
| 3 to 6 months late | 21 Jun 2027 to 20 Sep 2027 | £750 |
| More than 6 months late | From 21 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- NI730697
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 June 2025 (1 year ago)
- Registered office
- 99 Glenroe Park, Dungiven, Londonderry, BT47 4DZ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 19 June 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Londonderry
Other active installation companies (insulation, lifts, shutters and similar) registered in Londonderry.
- Passive Airtight Solutions Ltd2025
- Rfe Contracts Limited2025
- Rock Shelving Limited2023
- RSR Contracts Limited2014
- Ruben Fabrications Ltd2022
- RWG Fencing Ltd2020
- S O'Kane Formwork Limited2020
- Smartwall Install Limited2022
All installation companies (insulation, lifts, shutters and similar) in Londonderry · All trades in Londonderry · Installers across the UK
Frequently asked questions
When are McCallion Interior Systems Ltd's accounts due?
McCallion Interior Systems Ltd's next accounts are due at Companies House by 20 March 2027 (in 158 days), covering the period to 30 June 2026.
When is McCallion Interior Systems 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 19 June 2026, due by 19 June 2027, and one for the period to 30 June 2026, due by 30 June 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is McCallion Interior Systems Ltd still trading?
McCallion Interior Systems 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 McCallion Interior Systems Ltd do?
McCallion Interior Systems Ltd is registered under Other construction installation (SIC 43290).
How old is McCallion Interior Systems Ltd?
McCallion Interior Systems Ltd was incorporated on 20 June 2025, 1 year ago.
What is the penalty if McCallion Interior Systems 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 McCallion Interior Systems 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.