- Company number
- 10563722
- Incorporated
- 13 Jan 20179 years trading
- Registered office
- 482 Lady Margaret Road, Southall, UB1 2NW
- Nature of business
- Glazing
Gem Windows Ltd is a 9-year-old private limited company registered in Southall, company number 10563722, one of 32 glazing companies in Southall. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £4,627 (+47.9%) on the year before, to £14K.
- Net assets rose in 6 of 7 year-on-year comparisons on record.
- Current assets of £30K against £20K owed within a year: 1.5 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £14K | £30K | £20K | 1 | |
| 31 Jan 2024 | £9,664 | £26K | £11K | 1 | |
| 31 Jan 2023 | £4,681 | £18K | £2,882 | 2 | |
| 31 Jan 2022 | £19 | £26K | £13K | 2 | |
| 31 Jan 2021 | £115 | £22K | £8,573 | 2 | |
| 31 Jan 2020 | £56 | £160 | £11K | 1 | |
| 31 Jan 2019 | £50 | £160 | £11K | ||
| 31 Jan 2018 | £47 | £160 | £23K |
Where Gem Windows Ltd is registered
The registered office is in Southall (UB1), in the Ealing local authority area, London. Show UB1 2NW on a map.
Other trade companies in UB1
- Kingsbury Roofing & Construction LtdRoofers
- T2Y LtdBuilders
- Driveworx LimitedMotor traders
- Raunak Design and Build LtdBuilders
- Phlo Plumbing & Heating LtdPlumbers and heating engineers
- Airpro Conditioning LimitedPlumbers and heating engineers
- Springfields Property LimitedProperty developers
- Sanndhu Construction UK LtdBuilders
Also registered at this address
19 other companies use the same registered office as Gem Windows Ltd.
- A-2-Z Tree & Garden Services LtdLandscapers and gardeners
- All in One Builders England LtdBuilders
- Arch Windows and Glazing LtdGlaziers
- Av Construction Builders LtdBuilders
- Barket LimitedProperty developers
- Broadwalk Paving LimitedLandscapers and gardeners
- Crystal Glazing LtdGlaziers
- Homesecure Glazing and Construction LtdBuilders
- JG Traders LtdFloor and wall tilers
- Khan Auto Electrician LtdMechanics and garages
- Modupe Development & Consultancy LtdProperty developers
- MP Motors London LtdMotor traders
- Peryton Cleaning LtdFacilities management
- Quality Drive & Landscape UK LimitedLandscapers and gardeners
- Rathore&Sons LtdRepair services
- SCMS Services LtdCleaning companies
- Som Development LimitedBuilders
- Sukha Construction LtdFinishing trades
- Wazz Developments LtdBuilders
What happens if Gem 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 10563722
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 January 2017 (9 years ago)
- Registered office
- 482 Lady Margaret Road, Southall, UB1 2NW
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 12 January 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 Southall
Other active glazing companies registered in Southall.
- Glazing Directs London Ltd2025
- Hellmane Ltd2026
- Kiystone Limited2025
- Lebas Bazar Limited2020
- Middlesex Windows Limited2022
- MK Glaziers Ltd2024
- Prime Glazing & Shopfronts Ltd2023
- Skyways Shopfronts Limited2015
All glazing companies in Southall · All trades in Southall · Glaziers across the UK
Frequently asked questions
When are Gem Windows Ltd's accounts due?
Gem Windows Ltd's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is Gem Windows Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Gem Windows Ltd still trading?
Gem 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 Gem Windows Ltd do?
Gem Windows Ltd is registered under Glazing (SIC 43342).
How old is Gem Windows Ltd?
Gem Windows Ltd was incorporated on 13 January 2017, 9 years ago.
What is the penalty if Gem 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 Gem 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.