- Company number
- 10962603
- Incorporated
- 14 Sep 20179 years trading
- Registered office
- The Gateway Moor Lane, Coleorton, Coalville, LE67 8FQ
- Nature of business
- Glazing
Cis Windows Ltd is a 9-year-old private limited company registered in Coalville, company number 10962603, one of the UK's glazing companies. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 up £439 (+3.6%) on the year before, to £13K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £35K against £22K owed within a year: 1.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £13K | £35K | £22K | 1 | |
| 31 Mar 2024 | £12K | £35K | £23K | 1 | |
| 31 Mar 2023 | £50K | £55K | £4,384 | 1 | |
| 31 Mar 2022 | £222 | £10K | £10K | 1 | |
| 31 Mar 2021 | £70 | £1,658 | £1,588 | 70 | |
| 31 Mar 2020 | £1 | ||||
| 31 Mar 2019 | £1 | ||||
| 31 Mar 2018 | £1 |
Where Cis Windows Ltd is registered
The registered office is in Coalville (LE67), in the North West Leicestershire local authority area, East Midlands. Show LE67 8FQ on a map.
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What happens if Cis Windows 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 10962603
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 September 2017 (9 years ago)
- Registered office
- The Gateway Moor Lane, Coleorton, Coalville, LE67 8FQ
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 13 September 2025
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 Coalville
Other active glazing companies registered in Coalville.
All glazing companies in Coalville · All trades in Coalville · Glaziers across the UK
Frequently asked questions
When are Cis Windows Ltd's accounts due?
Cis Windows Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Cis Windows Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Cis Windows Ltd still trading?
Cis Windows 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 Cis Windows Ltd do?
Cis Windows Ltd is registered under Glazing (SIC 43342).
How old is Cis Windows Ltd?
Cis Windows Ltd was incorporated on 14 September 2017, 9 years ago.
What is the penalty if Cis Windows 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 Cis Windows 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.