- Company number
- SC447436
- Incorporated
- 12 Apr 201313 years trading
- Registered office
- Iais Level One, 211 Dumbarton Road, Glasgow, Lanarkshire, G11 6AA
- Nature of business
- Glazing
Top Class Windows Ltd is a 13-year-old private limited company registered in Glasgow, company number SC447436, one of 53 glazing companies in Glasgow. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £6,854 (-114%) on the year before, to -£13K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £15K against £28K owed within a year: 0.5 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | -£13K | £4,077 | £15K | £28K | 4 |
| 30 Apr 2024 | -£6,014 | £1,457 | £8,057 | £14K | 4 |
| 30 Apr 2023 | £1,498 | £5,178 | £12K | £11K | 3 |
| 30 Apr 2022 | -£950 | £428 | £428 | £1,378 | 4 |
| 30 Apr 2021 | £1,485 | £3,862 | £6,482 | £4,997 | 5 |
| 30 Apr 2020 | -£3,338 | £858 | £22K | £26K | 8 |
| 30 Apr 2019 | £3,044 | £2,390 | £28K | £25K | 8 |
| 30 Apr 2018 | £3,026 | £443 | £9,293 | £6,267 | 7 |
| 30 Apr 2017 | £1,339 | £5,637 | £20K | £18K | |
| 30 Apr 2016 | £1,565 | £12K | £13K | £12K |
Where Top Class Windows Ltd is registered
The registered office is in Glasgow (G11), in the Glasgow City local authority area, Scotland. Show G11 6AA on a map.
Other trade companies in G11
- Northforge Trading LtdMotor traders
- Sutherland Electrical LtdElectricians
- The Glasgow Staircase Company LimitedInstallers
- Bloomcare Cleaning LtdCleaning companies
- Eti Power Engineering LimitedElectricians
- Emergency Plumbers and Heating Repairs LtdElectricians
- Quikshine LtdCleaning companies
- Go Mobile (Scotland) LtdRepair services
Also registered at this address
23 other companies use the same registered office as Top Class Windows Ltd.
- Afxx LtdMachinery repair and installation
- Allan Gibson Fencing LimitedLandscapers and gardeners
- Ardoch Joiners and Builders LtdJoiners and carpenters
- Cassillis Stoves and Fireplaces LimitedSpecialist contractors
- Chromacollection LimitedElectricians
- Clydesmill Garage LtdMechanics and garages
- Eurovans (Ayr) LimitedMotor traders
- Fairbright Homes Bearsden LtdBuilders
- Fairbright Homes LimitedBuilders
- Fairbright LtdJoiners and carpenters
- GSW Transport LimitedMachinery repair and installation
- HTM Building Services Engineers Ltd.Plumbers and heating engineers
- Imse LimitedMachinery repair and installation
- Innovative Energy Services (UK) LimitedCivil engineering
- J.O.R Joinery LimitedJoiners and carpenters
- Klassicks Motor Company LimitedMotor traders
- KMC Coatbridge LimitedMechanics and garages
- MCW Ayr LimitedJoiners and carpenters
- MCW Scotland LimitedJoiners and carpenters
- The Wee Mouse LtdJoiners and carpenters
- Thornhill Distribution LimitedProperty developers
- Top Class Builders LtdBuilders
- Top Class Conservatories (Scotland) LimitedSpecialist contractors
What happens if Top Class Windows 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- SC447436
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 April 2013 (13 years ago)
- Registered office
- Iais Level One, 211 Dumbarton Road, Glasgow, Lanarkshire, G11 6AA
- Nature of business
- Glazing (SIC 43342)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 12 April 2026
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 Glasgow
Other active glazing companies registered in Glasgow.
- Tradeline Windows and Doors Limited1993
- Tradeston Glass & Glazing Ltd2025
- True Heritage Windows Ltd2025
- Vision Clear (Glasgow) Ltd2021
- West London Windows Limited2025
- Window World Scotland Limited2025
- Windows Express Scotland Limited2026
- 3R Glass and Glazing Limited2022
All glazing companies in Glasgow · All trades in Glasgow · Glaziers across the UK
Frequently asked questions
When are Top Class Windows Ltd's accounts due?
Top Class Windows Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Top Class Windows Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Top Class Windows Ltd still trading?
Top Class Windows 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 Top Class Windows Ltd do?
Top Class Windows Ltd is registered under Glazing (SIC 43342).
How old is Top Class Windows Ltd?
Top Class Windows Ltd was incorporated on 12 April 2013, 13 years ago.
What is the penalty if Top Class Windows 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 Top Class Windows 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.