- Company number
- 05034162
- Incorporated
- 4 Feb 200422 years trading
- Registered office
- Addison Road, Chilton Industrial Estate, Sudbury, Suffolk, CO10 2YW
- Nature of business
- Glazing
Coastal Windows Limited is a 22-year-old private limited company registered in Sudbury, company number 05034162, one of the UK's glazing companies. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 unchanged on the year before, at £1.
- Net assets rose in 0 of 9 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £1 | £0 | £0 | 0 | |
| 31 Oct 2024 | £1 | £0 | 0 | ||
| 31 Oct 2023 | £1 | ||||
| 31 Oct 2022 | £1 | 0 | |||
| 31 Oct 2021 | £1 | 0 | |||
| 31 Oct 2020 | £1 | 0 | |||
| 30 Apr 2019 | £1 | ||||
| 30 Apr 2018 | £1 | ||||
| 30 Apr 2017 | £1 | ||||
| 30 Apr 2016 | £1 | £1 |
Where Coastal Windows Limited is registered
The registered office is in Sudbury (CO10), in the Babergh local authority area, East of England. Show CO10 2YW on a map.
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What happens if Coastal 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 05034162
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 February 2004 (22 years ago)
- Registered office
- Addison Road, Chilton Industrial Estate, Sudbury, Suffolk, CO10 2YW
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 22 January 2026
- Charges (mortgages)
- 0 outstanding of 1 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 in Sudbury
Other active glazing companies registered in Sudbury.
All glazing companies in Sudbury · All trades in Sudbury · Glaziers across the UK
Frequently asked questions
When are Coastal Windows Limited's accounts due?
Coastal Windows Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Coastal Windows Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Coastal Windows Limited still trading?
Coastal Windows Limited 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 Coastal Windows Limited do?
Coastal Windows Limited is registered under Glazing (SIC 43342).
How old is Coastal Windows Limited?
Coastal Windows Limited was incorporated on 4 February 2004, 22 years ago.
What is the penalty if Coastal 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 Coastal Windows Limited 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.