- Company number
- 13305975
- Incorporated
- 31 Mar 20215 years trading
- Registered office
- 54-56 Ormskirk Street, St Helens, Merseyside, WA10 2TF
- Nature of business
- Glazing
Mallory Windows Limited is a 5-year-old private limited company registered in St Helens, company number 13305975, one of the UK's glazing companies. Its next accounts are due at Companies House on 28 December 2026, and the CT600 for the period to 28 March 2026 is due at HMRC on 28 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 down £237 (-52.9%) on the year before, to £211.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £11K against £11K owed within a year: 1.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £211 | £6,855 | £11K | £11K | 1 |
| 31 Mar 2024 | £448 | £7,563 | £9,805 | £9,534 | 1 |
| 31 Mar 2023 | £932 | £13K | £19K | £18K | 1 |
| 31 Mar 2022 | £1 | £12K | £20K | £20K | 1 |
Who runs and owns Mallory Windows Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| A*** B*** | Director | Mar 2021 |
Person with significant control
Where Mallory Windows Limited is registered
The registered office is in St Helens (WA10), in the St. Helens local authority area, North West. Show WA10 2TF on a map.
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Shared registered office
106 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Mallory 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Dec 2026 to 28 Jan 2027 | £150 |
| 1 to 3 months late | 29 Jan 2027 to 28 Mar 2027 | £375 |
| 3 to 6 months late | 29 Mar 2027 to 28 Jun 2027 | £750 |
| More than 6 months late | From 29 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Mar 2027 | £200 |
| 3 months late | 28 Jun 2027 | another £200 |
| 6 months late | 28 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 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
- 13305975
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 March 2021 (5 years ago)
- Registered office
- 54-56 Ormskirk Street, St Helens, Merseyside, WA10 2TF
- Nature of business
- Glazing (SIC 43342)
- Year end
- 28 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 30 March 2026
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 St Helens
Other active glazing companies registered in St Helens.
- Green Life Designs UK Ltd2021
- Gib Construct Ltd2021
- Madden Installations Limited2021
- M Price International Limited2021
- Midlands UPVC Windows Limited2021
- Wolf Windows and Blinds Ltd2021
- Barter Systems Limited2021
- Misty Window Repairs Norfolk Ltd2021
All glazing companies in St Helens · All trades in St Helens · Glaziers across the UK
Frequently asked questions
When are Mallory Windows Limited's accounts due?
Mallory Windows Limited's next accounts are due at Companies House by 28 December 2026 (in 77 days), covering the period to 28 March 2026.
When is Mallory Windows Limited's CT600 due?
The CT600 for the period to 28 March 2026 is due at HMRC by 28 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 29 December 2026.
Is Mallory Windows Limited still trading?
Mallory 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 Mallory Windows Limited do?
Mallory Windows Limited is registered under Glazing (SIC 43342).
How old is Mallory Windows Limited?
Mallory Windows Limited was incorporated on 31 March 2021, 5 years ago.
Who runs Mallory Windows Limited?
Mallory Windows Limited has 1 active director, the longest-serving appointed in Mar 2021. Their names and service addresses are on the Companies House register.
Who owns Mallory Windows Limited?
One person or company has significant control of Mallory Windows Limited: an individual (owns 75% or more of the shares).
What is the penalty if Mallory 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 Mallory 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.