- Companies
- Installers
- London
- Ertan Glass & Windows Systems Ltd
Ertan Glass & Windows Systems Ltd
- Company number
- 13186699
- Incorporated
- 8 Feb 20215 years trading
- Registered office
- Suite 314 Ashley House, 235-239 High Road, Wood Green, London, N22 8HF
- Nature of business
- Other construction installation; Glazing; Other specialised construction activities n.e.c.
Ertan Glass & Windows Systems Ltd is a 5-year-old private limited company registered in London, company number 13186699, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £133 (+53.8%) on the year before, to £380.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £2,343 against £2,444 owed within a year: 1.0 times cover.
- 1 employee 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £380 | £2,343 | £2,444 | 1 | |
| 30 Sep 2024 | £247 | £5,303 | £5,598 | 1 | |
| 30 Sep 2023 | £202 | £3,225 | £3,750 | 1 | |
| 30 Sep 2022 | £192 | £668 | £1,370 | 1 | |
| 30 Sep 2021 | £144 | £2,026 | £1,927 | 0 |
Where Ertan Glass & Windows Systems Ltd is registered
The registered office is in London (N22), in the Haringey local authority area, London. Show N22 8HF on a map.
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Also registered at this address
5 other companies use the same registered office as Ertan Glass & Windows Systems Ltd.
- Aymaz Construction LimitedBuilders
- Delta Exhibitions & Carpentry LtdGroundworks and demolition
- Interior Knightsbridge LtdFinishing trades
- La Rose Nan LtdPainters and decorators
- Rohiv LimitedSpecialist contractors
What happens if Ertan Glass & Windows Systems 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 13186699
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 February 2021 (5 years ago)
- Registered office
- Suite 314 Ashley House, 235-239 High Road, Wood Green, London, N22 8HF
- Nature of business
- Other construction installation (SIC 43290)
Glazing (SIC 43342)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 5 February 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Es Build & Maintenance Ltd2025
- Esenchel Gas and Electric Ltd2026
- Essential Plastics Limited2013
- Essex Groundworks Memorials Ltd2026
- Essex Industries Limited1999
- Essex Projects Limited2023
- Essex Stoves and Chimneys Limited2010
- Essex Ventilation Services Ltd2002
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Ertan Glass & Windows Systems Ltd's accounts due?
Ertan Glass & Windows Systems Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Ertan Glass & Windows Systems Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Ertan Glass & Windows Systems Ltd still trading?
Ertan Glass & Windows Systems 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 Ertan Glass & Windows Systems Ltd do?
Ertan Glass & Windows Systems Ltd is registered under Other construction installation (SIC 43290); Glazing (SIC 43342); Other specialised construction activities n.e.c. (SIC 43999).
How old is Ertan Glass & Windows Systems Ltd?
Ertan Glass & Windows Systems Ltd was incorporated on 8 February 2021, 5 years ago.
What is the penalty if Ertan Glass & Windows Systems 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 Ertan Glass & Windows Systems 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.