- Company number
- 12753982
- Incorporated
- 19 Jul 20206 years trading
- Registered office
- 189 Westmorland Avenue, Luton, LU3 2PU
- Nature of business
- Glazing
A J Windows Ltd is a 6-year-old private limited company registered in Luton, company number 12753982, one of 12 glazing companies in Luton. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £1,027 (+211.3%) on the year before, to £1,513.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £2,919 against £1,406 owed within a year: 2.1 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £1,513 | £2,919 | £1,406 | 2 | |
| 31 Jul 2024 | £486 | £3,996 | £4,482 | 2 | |
| 31 Jul 2023 | £1,259 | £6,417 | £5,158 | 2 | |
| 31 Jul 2022 | £1,500 | £3,197 | £1,697 | 2 | |
| 31 Jul 2021 | £294 | £294 | 2 |
Where A J Windows Ltd is registered
The registered office is in Luton (LU3), in the Luton local authority area, East of England. Show LU3 2PU on a map.
Other trade companies in LU3
- Build Automotive LtdMotor traders
- Mot's 247 LtdMechanics and garages
- Naresh GCS LtdBuilders
- First World General Trading LimitedMotor traders
- Oriel Vista LtdGlaziers
- Brooks R Electrical Services LtdElectricians
- MSDD Marchidan LimitedCleaning companies
- Ssbo LtdInstallers
What happens if A J 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 12753982
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 July 2020 (6 years ago)
- Registered office
- 189 Westmorland Avenue, Luton, LU3 2PU
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 29 September 2025
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 Luton
Other active glazing companies registered in Luton.
- A1 Window Solutions Limited2011
- Andrew and Son Home Improvements Ltd2021
- Apex Windows Limited2012
- Blueskyglazing Ltd2024
- Ha Windows and Doors Ltd2021
- Icknield Home Improvements Limited2012
- Mota Windows & Doors Ltd2025
- Oriel Vista Ltd2026
All glazing companies in Luton · All trades in Luton · Glaziers across the UK
Frequently asked questions
When are A J Windows Ltd's accounts due?
A J Windows Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is A J Windows Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is A J Windows Ltd still trading?
A J 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 A J Windows Ltd do?
A J Windows Ltd is registered under Glazing (SIC 43342).
How old is A J Windows Ltd?
A J Windows Ltd was incorporated on 19 July 2020, 6 years ago.
What is the penalty if A J 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 A J 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.