- Company number
- 17208265
- Incorporated
- 8 May 2026
- Registered office
- 43 Burgh Road, Skegness, PE25 2RA
- Nature of business
- Glazing
Insulate Window Systems Limited is a newly incorporated private limited company registered in Skegness, company number 17208265, one of the UK's glazing companies. Its next accounts are due at Companies House on 8 February 2028, and its first CT600 is due at HMRC on 7 May 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 Insulate Window Systems Limited is registered
The registered office is in Skegness (PE25), in the East Lindsey local authority area, East Midlands. Show PE25 2RA on a map.
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What happens if Insulate Window Systems 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 8 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 9 Feb 2028 to 8 Mar 2028 | £150 |
| 1 to 3 months late | 9 Mar 2028 to 8 May 2028 | £375 |
| 3 to 6 months late | 9 May 2028 to 8 Aug 2028 | £750 |
| More than 6 months late | From 9 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 17208265
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 May 2026
- Registered office
- 43 Burgh Road, Skegness, PE25 2RA
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
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 Skegness
Other active glazing companies registered in Skegness.
- Cannock Composite Doors Ltd2026
- S2Hglass Ltd2026
- Nordberg Systems Ltd2026
- Better View Glazing Limited2026
- Ak Double Glazing Ltd2026
- Cpe Southern Windows & Doors Limited2026
- Maldon Rapid Repair Ltd2026
- Eminence Windows and Doors Ltd2026
All glazing companies in Skegness · All trades in Skegness · Glaziers across the UK
Frequently asked questions
When are Insulate Window Systems Limited's accounts due?
Insulate Window Systems Limited's next accounts are due at Companies House by 8 February 2028 (in 484 days), covering the period to 31 May 2027.
When is Insulate Window Systems 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 7 May 2027, due by 7 May 2028, and one for the period to 31 May 2027, due by 31 May 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Insulate Window Systems Limited still trading?
Insulate Window Systems 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 Insulate Window Systems Limited do?
Insulate Window Systems Limited is registered under Glazing (SIC 43342).
How old is Insulate Window Systems Limited?
Insulate Window Systems Limited was incorporated on 8 May 2026, less than a year ago.
What is the penalty if Insulate Window Systems 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 Insulate Window Systems 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.