- Companies
- Installers
- Winsford
- Windowseal Limited
Windowseal Limited
- Company number
- 17432342
- Incorporated
- 2 Sep 2026
- Registered office
- Willow Bank Clay Lane, Marton, Winsford, CW7 2QG
- Nature of business
- Other construction installation
Windowseal Limited is a newly incorporated private limited company registered in Winsford, company number 17432342, one of 6 installation companies (insulation, lifts, shutters and similar) in Winsford. Its next accounts are due at Companies House on 2 June 2028, and its first CT600 is due at HMRC on 1 September 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Windowseal Limited is registered
The registered office is in Winsford (CW7), in the Cheshire West and Chester local authority area, North West. Show CW7 2QG on a map.
Other trade companies in CW7
- Best Trades Northwest LtdBuilders
- Young's Building Services LtdBuilders
- Northwest Roofing Repairs LtdRoofers
- Weaver Scaffolding LimitedScaffolders
- Anderson Rail Engineering Solutions LtdElectricians
- Smartpaw Home LtdElectricians
- DTF Auto’S LtdMotor traders
- R & G Roofing Services LtdRoofers
What happens if Windowseal 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 2 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 3 Jun 2028 to 2 Jul 2028 | £150 |
| 1 to 3 months late | 3 Jul 2028 to 2 Sep 2028 | £375 |
| 3 to 6 months late | 3 Sep 2028 to 2 Dec 2028 | £750 |
| More than 6 months late | From 3 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 17432342
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 September 2026
- Registered office
- Willow Bank Clay Lane, Marton, Winsford, CW7 2QG
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
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 Winsford
Other active installation companies (insulation, lifts, shutters and similar) registered in Winsford.
- A. G. Building & Joinery Limited1999
- Beesley's Developments Ltd2012
- Excel Granite and Marble Limited2013
- Ja & ST Fencing Ltd2025
- Steve Dunning Ltd2013
All installation companies (insulation, lifts, shutters and similar) in Winsford · All trades in Winsford · Installers across the UK
Frequently asked questions
When are Windowseal Limited's accounts due?
Windowseal Limited's next accounts are due at Companies House by 2 June 2028 (in 599 days), covering the period to 30 September 2027.
When is Windowseal 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 1 September 2027, due by 1 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Windowseal Limited still trading?
Windowseal 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 Windowseal Limited do?
Windowseal Limited is registered under Other construction installation (SIC 43290).
How old is Windowseal Limited?
Windowseal Limited was incorporated on 2 September 2026, less than a year ago.
What is the penalty if Windowseal 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 Windowseal 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.