- Company number
- SC165708
- Incorporated
- 16 May 199630 years trading
- Registered office
- Unit 1 Pickering House, Netherton Road, Wishaw, North Lanarkshire, ML2 0EQ
- Nature of business
- Glazing
Fortress Doors & Windows Limited is a 30-year-old private limited company registered in Wishaw, company number SC165708, one of the UK's glazing companies. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 down £39K (-93.3%) on the year before, to £2,767.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £33K against £46K owed within a year: 0.7 times cover.
- 3 employees on average, down from 4 the year before.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £2,767 | £21K | £33K | £46K | 3 |
| 31 May 2024 | £42K | £69K | £123K | £87K | 4 |
| 31 May 2023 | £934 | £55K | £72K | £55K | 4 |
| 31 May 2022 | £5,461 | £62K | £86K | £56K | 4 |
| 31 May 2021 | -£4,581 | £62K | £110K | £75K | 4 |
| 31 May 2020 | -£15K | £47K | £58K | £35K | 4 |
| 31 May 2019 | -£20K | £743 | £14K | £45K | 4 |
| 31 May 2018 | -£9,314 | £0 | £41K | £63K | 4 |
| 31 May 2017 | -£9,163 | £6,068 | £25K | £47K | 4 |
Where Fortress Doors & Windows Limited is registered
The registered office is in Wishaw (ML2), in the North Lanarkshire local authority area, Scotland. Show ML2 0EQ on a map.
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- Bluebell Safety LtdSpecialist contractors
- RM Bricklaying Services LtdBuilders
- Buan Roofing LtdRoofers
- Greig McArthur Construction Services LtdElectricians
- Munro Group Assets LtdMechanics and garages
- Xclusive Cleaning Services LtdCleaning companies
What happens if Fortress Doors & Windows 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- SC165708
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 May 1996 (30 years ago)
- Registered office
- Unit 1 Pickering House, Netherton Road, Wishaw, North Lanarkshire, ML2 0EQ
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 16 May 2026
- Charges (mortgages)
- 0 outstanding of 2 registered
Filing notes for glazing companies
Glazing companies often take deposits before work starts. Deposits held at the year end are a liability, not income, until the job is done.
Similar companies in Wishaw
Other active glazing companies registered in Wishaw.
All glazing companies in Wishaw · All trades in Wishaw · Glaziers across the UK
Frequently asked questions
When are Fortress Doors & Windows Limited's accounts due?
Fortress Doors & Windows Limited's next accounts are due at Companies House by 28 February 2027 (in 137 days), covering the period to 31 May 2026.
When is Fortress Doors & Windows Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Fortress Doors & Windows Limited still trading?
Fortress Doors & Windows 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 Fortress Doors & Windows Limited do?
Fortress Doors & Windows Limited is registered under Glazing (SIC 43342).
How old is Fortress Doors & Windows Limited?
Fortress Doors & Windows Limited was incorporated on 16 May 1996, 30 years ago.
What is the penalty if Fortress Doors & Windows 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 Fortress Doors & Windows 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.