Silverline Windows Limited
- Company number
- 01567550
- Incorporated
- 11 Jun 198145 years trading
- Registered office
- Silverline Place, 91 Trinity Road, Wood Green, London, N22 8YB
- Nature of business
- Glazing
Silverline Windows Limited is a 45-year-old private limited company registered in Wood Green, company number 01567550, one of the UK's glazing companies. Its next accounts are due at Companies House on 28 October 2026, and its first CT600 is due at HMRC on 31 July 2026.
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 £62K (+215.4%) on the year before, to £91K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £276K against £209K owed within a year: 1.3 times cover.
- 7 employees on average during the year.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2024 | £91K | £193K | £276K | £209K | 7 |
| 31 Jul 2023 | £29K | £248K | £225K | 7 | |
| 31 Jul 2022 | £72K | £421K | £358K | 7 | |
| 31 Jul 2021 | £29K | £361K | £325K | 7 | |
| 31 Jul 2020 | £4,157 | £203K | £184K | 7 | |
| 31 Jul 2019 | £2,875 | £157K | £196K | 7 | |
| 31 Jul 2018 | £12K | £109K | £155K | ||
| 31 Jul 2017 | £9,833 | £52K | £111K | £119K | 8 |
| 31 Jul 2016 | £5,329 | £31K | £89K | £102K | |
| 31 Jul 2015 | £14K | £61K | £139K | £143K |
Where Silverline Windows Limited is registered
The registered office is in Wood Green (N22), in the Haringey local authority area, London. Show N22 8YB on a map.
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What happens if Silverline Windows Limited 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 28 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Oct 2026 to 28 Nov 2026 | £150 |
| 1 to 3 months late | 29 Nov 2026 to 28 Jan 2027 | £375 |
| 3 to 6 months late | 29 Jan 2027 to 28 Apr 2027 | £750 |
| More than 6 months late | From 29 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Jan 2027 | £200 |
| 3 months late | 28 Apr 2027 | another £200 |
| 6 months late | 28 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 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
- 01567550
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 June 1981 (45 years ago)
- Registered office
- Silverline Place, 91 Trinity Road, Wood Green, London, N22 8YB
- Nature of business
- Glazing (SIC 43342)
- Year end
- 27 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2024
- Last confirmation statement
- 4 September 2025
- Charges (mortgages)
- 2 outstanding of 2 registered
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
Other active glazing companies.
Frequently asked questions
When are Silverline Windows Limited's accounts due?
Silverline Windows Limited's next accounts are due at Companies House by 28 October 2026 (in 16 days), covering the period to 28 January 2026.
When is Silverline Windows Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 July 2025, due by 31 July 2026, and one for the period to 28 January 2026, due by 28 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Silverline Windows Limited still trading?
Silverline Windows Limited is listed as active on the Companies House register (checked 12 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 Silverline Windows Limited do?
Silverline Windows Limited is registered under Glazing (SIC 43342).
How old is Silverline Windows Limited?
Silverline Windows Limited was incorporated on 11 June 1981, 45 years ago.
What is the penalty if Silverline Windows Limited 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 Silverline Windows Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.