- Company number
- 15382693
- Incorporated
- 2 Jan 20242 years trading
- Registered office
- 8 Selby Gardens, Southall, UB1 2XN
- Nature of business
- Glazing
A G Windows & Doors Ltd is a 2-year-old private limited company registered in Southall, company number 15382693, 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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Where A G Windows & Doors Ltd is registered
The registered office is in Southall (UB1), in the Ealing local authority area, London. Show UB1 2XN 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
What happens if A G Windows & Doors 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
- 15382693
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 January 2024 (2 years ago)
- Registered office
- 8 Selby Gardens, Southall, UB1 2XN
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 1 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.
- A&S Windows Craftsman Ltd2025
- Advance Glazing Ltd2011
- Al Anwar Solutions Ltd2009
- Arch Windows and Glazing Ltd2023
- Blue Oak Home Improvements Ltd2026
- Crystal Glazing Ltd2025
- Dream Windows Limited2022
- Duraglaze Windows and Doors Ltd2020
All glazing companies in Southall · All trades in Southall · Glaziers across the UK
Frequently asked questions
When are A G Windows & Doors Ltd's accounts due?
A G Windows & Doors Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is A G Windows & Doors 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 A G Windows & Doors Ltd still trading?
A G Windows & Doors 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 A G Windows & Doors Ltd do?
A G Windows & Doors Ltd is registered under Glazing (SIC 43342).
How old is A G Windows & Doors Ltd?
A G Windows & Doors Ltd was incorporated on 2 January 2024, 2 years ago.
What is the penalty if A G Windows & Doors 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 A G Windows & Doors 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.