- Company number
- 16187106
- Incorporated
- 15 Jan 20251 year trading
- Registered office
- 16 Woodstock Road, London, E7 8ND
- Nature of business
- Glazing
The Best Windows Installer Ltd is a 1-year-old private limited company registered in London, company number 16187106, one of 307 glazing companies in London. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 January 2026, as filed at Companies House.
Where The Best Windows Installer Ltd is registered
The registered office is in London (E7), in the Newham local authority area, London. Show E7 8ND on a map.
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What happens if The Best Windows Installer 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 16187106
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 January 2025 (1 year ago)
- Registered office
- 16 Woodstock Road, London, E7 8ND
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 14 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 London
Other active glazing companies registered in London.
- The Portland Window Company Ltd2019
- The Shopfronts and Shutters Company Ltd2022
- Thermal Glazing Limited2021
- Thornswift Limited1987
- Top Glass & Glazing Ltd2024
- Top Glazier Splashbacks and Worktops Ltd2015
- Total Installers Ltd2015
- Tristar Windows Limited2011
All glazing companies in London · All trades in London · Glaziers across the UK
Frequently asked questions
When are The Best Windows Installer Ltd's accounts due?
The Best Windows Installer Ltd's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is The Best Windows Installer Ltd's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is The Best Windows Installer Ltd still trading?
The Best Windows Installer 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 The Best Windows Installer Ltd do?
The Best Windows Installer Ltd is registered under Glazing (SIC 43342).
How old is The Best Windows Installer Ltd?
The Best Windows Installer Ltd was incorporated on 15 January 2025, 1 year ago.
What is the penalty if The Best Windows Installer 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 The Best Windows Installer 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.