- Companies
- Glaziers
- Birkenhead
- C & S Aluminium Windows Limited
C & S Aluminium Windows Limited
- Company number
- 01584724
- Incorporated
- 9 Sep 198145 years trading
- Registered office
- 6 Abbots Quay, Monks Ferry, Birkenhead, Wirral, CH41 5LH
- Nature of business
- Glazing
C & S Aluminium Windows Limited is a 45-year-old private limited company registered in Birkenhead, company number 01584724, one of 8 glazing companies in Birkenhead. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £63K (-13%) on the year before, to £422K.
- Net assets rose in 1 of 9 year-on-year comparisons on record.
- Current assets of £831K against £673K owed within a year: 1.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £422K | £145K | £831K | £673K | 0 |
| 31 May 2024 | £485K | £226K | £787K | £547K | 32 |
| 31 May 2023 | £673K | £293K | £838K | £440K | 32 |
| 31 May 2022 | £778K | £441K | £937K | £428K | 32 |
| 31 May 2021 | £908K | £636K | £1.2M | £527K | 32 |
| 31 May 2020 | £1.1M | £512K | £1M | £243K | 29 |
| 31 May 2019 | £890K | £598K | £1.2M | £541K | |
| 31 May 2018 | £1.1M | £895K | £1.3M | £498K | |
| 31 May 2017 | £1.1M | £731K | £1.2M | £413K | 29 |
| 31 May 2016 | £1.2M | £797K | £1.1M | £269K | 26 |
Public contracts won
C & S Aluminium Windows Limited has 2 public sector contract awards on record; the ones with their own published value total £20M (2024). Source: Contracts Finder and Find a Tender award notices. For 1 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 1 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- LHC Procurement Group1 award
- LHC Procurement Group for the Welsh Procurement Alliance (WPA)1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| LHC Procurement Group | Aluminium Windows and Doors | Ceiling, not shown | 4 Apr 2024 |
| LHC Procurement Group for the Welsh Procurement Alliance (WPA) | Supply and Installation of Aluminium Windows & Doors | £20M | 3 Apr 2024 |
Where C & S Aluminium Windows Limited is registered
The registered office is in Birkenhead (CH41), in the Wirral local authority area, North West. Show CH41 5LH on a map.
Other trade companies in CH41
- Bennetts Garage (NW) LtdMechanics and garages
- M&R Global Trading LtdCleaning companies
- Southern Rig Services UK LtdMachinery repair and installation
- NW Recovery LtdMotor traders
- J Harris & Son Roofing Services LtdRoofers
- TQ Welding Services LimitedMachinery repair and installation
- Serandib Auto Care LtdMotor traders
- Simply Sparkle LtdCleaning companies
Also registered at this address
16 other companies use the same registered office as C & S Aluminium Windows Limited.
- Bayston Properties LimitedProperty developers
- C.& S.Glaziers(North Wales)LimitedGlaziers
- Evolution Performance Cars (Wirral) LtdMotor traders
- Fraser Blair Associates LimitedProperty developers
- GMC Property Development LimitedProperty developers
- J.Shaw Electrical Engineers LimitedElectricians
- Jagged Rock Investments LtdBuilders
- JJ Classic Restorations LimitedProperty developers
- John T.Smith (Brick) LimitedProperty developers
- Just Developing LimitedBuilders
- Leasebrick LimitedFinishing trades
- MMS London Properties LimitedProperty developers
- Penwaig LimitedProperty developers
- Pfa Electrics LimitedElectricians
- Tanglin Developments LimitedProperty developers
- The Vacuum Glazing Network LimitedGlaziers
What happens if C & S Aluminium 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 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 01584724
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 September 1981 (45 years ago)
- Registered office
- 6 Abbots Quay, Monks Ferry, Birkenhead, Wirral, CH41 5LH
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 9 October 2025
- Charges (mortgages)
- 1 outstanding of 3 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 Birkenhead
Other active glazing companies registered in Birkenhead.
- C.& S.Glaziers(North Wales)Limited1969
- Eastham Aluminium Limited2016
- The Everite Window Range Limited2019
- The Vacuum Glazing Network Limited2023
- Trade Frame Direct Ltd2019
- Wirral Double Glazing Ltd2025
- Wrightway Windows & Construction Limited2019
All glazing companies in Birkenhead · All trades in Birkenhead · Glaziers across the UK
Frequently asked questions
When are C & S Aluminium Windows Limited's accounts due?
C & S Aluminium Windows Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is C & S Aluminium Windows Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is C & S Aluminium Windows Limited still trading?
C & S Aluminium 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 C & S Aluminium Windows Limited do?
C & S Aluminium Windows Limited is registered under Glazing (SIC 43342).
How old is C & S Aluminium Windows Limited?
C & S Aluminium Windows Limited was incorporated on 9 September 1981, 45 years ago.
Has C & S Aluminium Windows Limited won public sector contracts?
Yes. C & S Aluminium Windows Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £20M), most recently from LHC Procurement Group.
What is the penalty if C & S Aluminium 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 C & S Aluminium 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.