- Company number
- 04260496
- Incorporated
- 27 Jul 200125 years trading
- Registered office
- Castle House, High Street, Ammanford, Carmarthenshire, SA18 2NB
- Nature of business
- Glazing
Ultimate Window Systems Limited is a 25-year-old private limited company registered in Ammanford, company number 04260496, one of the UK's glazing companies. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
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 £32K (+16.9%) on the year before, to £220K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £508K against £297K owed within a year: 1.7 times cover.
- 20 employees on average, down from 22 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £220K | £40K | £508K | £297K | 20 |
| 31 Jan 2025 | £188K | £45K | £397K | £220K | 22 |
| 31 Jan 2024 | £151K | £78K | £350K | £216K | 24 |
| 31 Jan 2023 | £282K | £181K | £532K | £270K | 27 |
| 31 Jan 2022 | £352K | £289K | £655K | £336K | 25 |
| 31 Jan 2021 | £748K | £591K | £1.1M | £374K | 23 |
| 31 Jan 2020 | £514K | £463K | £771K | £279K | 22 |
| 31 Jan 2019 | £394K | £257K | £614K | £259K | 19 |
| 31 Jan 2018 | £282K | £210K | £452K | £210K | 16 |
| 31 Jan 2017 | £186K | £126K | £318K | £166K | 13 |
Who runs and owns Ultimate Window Systems Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| R*** W*** | Director | Oct 2021 |
5 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| G*** E*** | Secretary | Jul 2001 | Oct 2021 |
| H*** L*** | Nominee Secretary | Jul 2001 | Jul 2001 |
| G*** E*** | Director | Jul 2001 | Oct 2021 |
| M*** E*** | Director | Jul 2001 | Oct 2021 |
| H*** L*** | Nominee director | Jul 2001 | Jul 2001 |
Person with significant control
Charges (secured borrowing)
1 of 2 registered charges are outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| A private lender, A private lender | Outstanding | Oct 2021 |
| HSBC Bank PLC | Satisfied Oct 2021 | Mar 2002 |
Where Ultimate Window Systems Limited is registered
The registered office is in Ammanford (SA18), in the Carmarthenshire local authority area, Wales. Show SA18 2NB on a map.
Other trade companies in SA18
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- Dyfed Engineering LtdElectricians
- Serval Mechanical & Fabrication LtdMechanics and garages
- Timber and Trade Solutions LtdBuilders
- West Wales Cleaning Group LtdCleaning companies
- Carpet Confession LtdCleaning companies
- Elite Painting Solutions LtdPainters and decorators
- Dafku Construction LtdCivil engineering
Shared registered office
34 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 Ultimate 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 31 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 04260496
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 July 2001 (25 years ago)
- Registered office
- Castle House, High Street, Ammanford, Carmarthenshire, SA18 2NB
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 27 July 2026
- Charges (mortgages)
- 1 outstanding of 2 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 Ammanford
Other active glazing companies registered in Ammanford.
All glazing companies in Ammanford · All trades in Ammanford · Glaziers across the UK
Frequently asked questions
When are Ultimate Window Systems Limited's accounts due?
Ultimate Window Systems Limited's next accounts are due at Companies House by 31 October 2027 (in 384 days), covering the period to 31 January 2027.
When is Ultimate Window Systems Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Ultimate Window Systems Limited still trading?
Ultimate 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 Ultimate Window Systems Limited do?
Ultimate Window Systems Limited is registered under Glazing (SIC 43342).
How old is Ultimate Window Systems Limited?
Ultimate Window Systems Limited was incorporated on 27 July 2001, 25 years ago.
Who runs Ultimate Window Systems Limited?
Ultimate Window Systems Limited has 1 active director, the longest-serving appointed in Oct 2021. Their names and service addresses are on the Companies House register.
Who owns Ultimate Window Systems Limited?
One person or company has significant control of Ultimate Window Systems Limited: Ultimate Window Systems Holdings Limited (owns 75% or more of the shares).
What is the penalty if Ultimate 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 Ultimate 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.