- Company number
- 12729504
- Incorporated
- 8 Jul 20206 years trading
- Registered office
- Flat 51 Vermillion Building, 30, Barking Road, London, E16 1GQ
- Nature of business
- Glazing; Other building completion and finishing
Kozarev Windows Ltd is a 6-year-old private limited company registered in London, company number 12729504, one of 307 glazing companies in London. 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 £506 (+99.2%) on the year before, to £1,016.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £1,472 against £556 owed within a year: 2.6 times cover.
- 2 employees on average, down from 3 the year before.
- 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 | £1,016 | £1,472 | £556 | 2 | |
| 31 Jul 2024 | £510 | £960 | £550 | 3 | |
| 31 Jul 2023 | £2,763 | £3,203 | £540 | 2 | |
| 31 Jul 2022 | £4,002 | £1,202 | 2 | ||
| 31 Jul 2021 | £2,204 | £2,998 | £894 | 3 |
Where Kozarev Windows Ltd is registered
The registered office is in London (E16), in the Newham local authority area, London. Show E16 1GQ on a map.
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What happens if Kozarev 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
- 12729504
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 July 2020 (6 years ago)
- Registered office
- Flat 51 Vermillion Building, 30, Barking Road, London, E16 1GQ
- Nature of business
- Glazing (SIC 43342)
Other building completion and finishing (SIC 43390) - Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 7 July 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 London
Other active glazing companies registered in London.
- KP Glazing Ltd2015
- Krasio Construct Limited2017
- Lea Bridge Windows Limited2025
- Lens Logic Ltd2024
- Lima Windows Ltd2022
- Lock & Glaze Ltd2024
- Locksmith South London Ltd2025
- London Aluminium Windows Limited2019
All glazing companies in London · All trades in London · Glaziers across the UK
Frequently asked questions
When are Kozarev Windows Ltd's accounts due?
Kozarev 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 Kozarev 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 Kozarev Windows Ltd still trading?
Kozarev 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 Kozarev Windows Ltd do?
Kozarev Windows Ltd is registered under Glazing (SIC 43342); Other building completion and finishing (SIC 43390).
How old is Kozarev Windows Ltd?
Kozarev Windows Ltd was incorporated on 8 July 2020, 6 years ago.
What is the penalty if Kozarev 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 Kozarev 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.