- Companies
- Joiners and carpenters
- Port Talbot
- Margam UPVC Windows & Doors Limited
Margam UPVC Windows & Doors Limited
- Company number
- 03346128
- Incorporated
- 7 Apr 199729 years trading
- Registered office
- Unit 18 Baglan Way, Baglan Industrial Park, Port Talbot, SA12 7BY
- Nature of business
- Joinery installation
Margam UPVC Windows & Doors Limited is a 29-year-old private limited company registered in Port Talbot, company number 03346128, one of 7 joinery companies in Port Talbot. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Margam UPVC Windows & Doors LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £15K (-3.9%) on the year before, to £378K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £507K against £133K owed within a year: 3.8 times cover.
- 4 employees on average, down from 5 the year before.
- 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 |
|---|---|---|---|---|---|
| 28 Feb 2025 | £378K | £507K | £133K | 4 | |
| 29 Feb 2024 | £393K | £521K | £126K | 5 | |
| 28 Feb 2023 | £416K | £562K | £139K | 6 | |
| 28 Feb 2022 | £415K | £439K | £131K | 5 | |
| 28 Feb 2021 | £404K | £365K | £132K | 5 | |
| 29 Feb 2020 | £333K | £227K | £62K | 5 | |
| 28 Feb 2019 | £326K | £229K | £69K | ||
| 28 Feb 2018 | £297K | £210K | £64K | ||
| 28 Feb 2017 | £347K | £141K | £169K | £33K | |
| 29 Feb 2016 | £272K | £155K | £194K | £62K |
Where Margam UPVC Windows & Doors Limited is registered
The registered office is in Port Talbot (SA12), in the Neath Port Talbot local authority area, Wales. Show SA12 7BY on a map.
Other trade companies in SA12
- Wearne Warmproof Specialist LimitedRoofers
- LMG Independent Bath Co LimitedElectricians
- South Wales Heritage Wood Revival LimitedPainters and decorators
- JD Industrial Services LtdCleaning companies
- Sherwood's Carpentry and Building Services LtdBuilders
- CDM Property Ventures LtdProperty developers
- Lawz Fabrications LtdMachinery repair and installation
- Smooth Operators Screeding LtdBuilders
What happens if Margam UPVC Windows & Doors 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 03346128
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 April 1997 (29 years ago)
- Registered office
- Unit 18 Baglan Way, Baglan Industrial Park, Port Talbot, SA12 7BY
- Nature of business
- Joinery installation (SIC 43320)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 29 January 2026
- Charges (mortgages)
- 0 outstanding of 1 registered
Filing notes for joinery companies
Joinery companies can carry stock and work in progress at the year end, especially bespoke workshop work, and that figure moves the profit for the year.
Similar companies in Port Talbot
Other active joinery companies registered in Port Talbot.
- Wearne Windows Limited2020
- Xylo Solutions Ltd2026
- Bradshaw's Carpentry Ltd2026
- DC Carpentry & Joinery Limited2012
- Dean Heycock Carpentry Limited2003
- KRJ Carpentry Ltd2022
All joinery companies in Port Talbot · All trades in Port Talbot · Joiners and carpenters across the UK
Frequently asked questions
When are Margam UPVC Windows & Doors Limited's accounts due?
Margam UPVC Windows & Doors Limited's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Margam UPVC Windows & Doors Limited's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Margam UPVC Windows & Doors Limited still trading?
Margam UPVC Windows & Doors 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 Margam UPVC Windows & Doors Limited do?
Margam UPVC Windows & Doors Limited is registered under Joinery installation (SIC 43320).
How old is Margam UPVC Windows & Doors Limited?
Margam UPVC Windows & Doors Limited was incorporated on 7 April 1997, 29 years ago.
What is the penalty if Margam UPVC Windows & Doors 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 Margam UPVC Windows & Doors 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.