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- Bangor
- Windows & Doors N.I. Ltd
Windows & Doors N.I. Ltd
- Company number
- NI690465
- Incorporated
- 18 Aug 20224 years trading
- Registered office
- 28 Skipperstone Road, Bangor, BT20 4EP
- Nature of business
- Other construction installation; Joinery installation
Windows & Doors N.I. Ltd is a 4-year-old private limited company registered in Bangor, company number NI690465, one of 12 installation companies (insulation, lifts, shutters and similar) in Bangor. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 up £32K (+64.6%) on the year before, to £81K.
- Current assets of £97K against £8,588 owed within a year: more than 10 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £81K | £97K | £8,588 | 1 | |
| 31 Dec 2024 | £49K | £98K | £69K | 1 | |
| 31 Dec 2023 | £37K | £53K | £32K | 1 |
Where Windows & Doors N.I. Ltd is registered
The registered office is in Bangor (BT20), in the Ards and North Down local authority area, Northern Ireland. Show BT20 4EP on a map.
Other trade companies in BT20
- Venger Group LtdMachinery repair and installation
- DK Electrical Solutions LtdElectricians
- Radaconstruct86 LimitedBuilders
- McCullough Homes LimitedProperty developers
- Eagle Wing Developments LtdProperty developers
- J & D Johnston Construction LtdInstallers
- 24Seven FM Services LimitedFacilities management
- Saandbanks LtdProperty developers
What happens if Windows & Doors N.I. 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- NI690465
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 August 2022 (4 years ago)
- Registered office
- 28 Skipperstone Road, Bangor, BT20 4EP
- Nature of business
- Other construction installation (SIC 43290)
Joinery installation (SIC 43320) - Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 17 August 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 Bangor
Other active installation companies (insulation, lifts, shutters and similar) registered in Bangor.
- Blue Tree Logistics Ltd2018
- Construction Junction Limited2012
- Evermore Fencing Ltd2015
- Glenside Acoustics Limited1991
- GS Fireplace Installations Ltd2022
- Interior Transition Limited2006
- J & D Johnston Construction Ltd2025
- Net Facilities Limited2023
All installation companies (insulation, lifts, shutters and similar) in Bangor · All trades in Bangor · Installers across the UK
Frequently asked questions
When are Windows & Doors N.I. Ltd's accounts due?
Windows & Doors N.I. Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Windows & Doors N.I. Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Windows & Doors N.I. Ltd still trading?
Windows & Doors N.I. 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 Windows & Doors N.I. Ltd do?
Windows & Doors N.I. Ltd is registered under Other construction installation (SIC 43290); Joinery installation (SIC 43320).
How old is Windows & Doors N.I. Ltd?
Windows & Doors N.I. Ltd was incorporated on 18 August 2022, 4 years ago.
What is the penalty if Windows & Doors N.I. 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 Windows & Doors N.I. 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.