- Companies
- Joiners and carpenters
- Pentre
- Williams Carpentry & Building Ltd
Williams Carpentry & Building Ltd
- Company number
- 09821527
- Incorporated
- 13 Oct 201511 years trading
- Registered office
- 28 Maindy Crescent, Ton Pentre, Pentre, CF41 7ES
- Nature of business
- Joinery installation
Williams Carpentry & Building Ltd is a 11-year-old private limited company registered in Pentre, company number 09821527, one of the UK's joinery 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 £17K (+4.2%) on the year before, to £425K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £392K against £70K owed within a year: 5.6 times cover.
- 4 employees on average during the year.
- 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 Mar 2025 | £425K | £241K | £392K | £70K | 4 |
| 31 Mar 2024 | £408K | £151K | £390K | £79K | 4 |
| 31 Mar 2023 | £435K | £326K | £561K | £99K | 3 |
| 31 Mar 2022 | £336K | £396K | £402K | £52K | 3 |
| 31 Mar 2021 | £289K | £189K | £368K | £65K | 2 |
| 31 Mar 2020 | £261K | £185K | £326K | 1 | |
| 31 Mar 2019 | £173K | £115K | £233K | £68K | |
| 31 Oct 2018 | £120K | £109K | £184K | £74K | |
| 31 Oct 2017 | £63K | £152K | £102K | ||
| 31 Oct 2016 | £20K | £29K | £18K |
Public contracts won
Williams Carpentry & Building Ltd has one public sector contract award on record; the ones with their own published value total £48K (2025). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Rhondda Cynon Taf CBC | Vision Products - WC Refurbishment | £48K | 8 Dec 2025 |
Where Williams Carpentry & Building Ltd is registered
The registered office is in Pentre (CF41), in the Rhondda Cynon Taf local authority area, Wales. Show CF41 7ES on a map.
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- Enviroclad LimitedFinishing trades
- JT Renovations LtdBuilders
- Trident Facilities Group LtdCleaning companies
- Symmons Aviation Services LtdMachinery repair and installation
What happens if Williams Carpentry & Building 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
- 09821527
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 October 2015 (11 years ago)
- Registered office
- 28 Maindy Crescent, Ton Pentre, Pentre, CF41 7ES
- Nature of business
- Joinery installation (SIC 43320)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 12 October 2025
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 Pentre
Other active joinery companies registered in Pentre.
All joinery companies in Pentre · All trades in Pentre · Joiners and carpenters across the UK
Frequently asked questions
When are Williams Carpentry & Building Ltd's accounts due?
Williams Carpentry & Building Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Williams Carpentry & Building 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 Williams Carpentry & Building Ltd still trading?
Williams Carpentry & Building 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 Williams Carpentry & Building Ltd do?
Williams Carpentry & Building Ltd is registered under Joinery installation (SIC 43320).
How old is Williams Carpentry & Building Ltd?
Williams Carpentry & Building Ltd was incorporated on 13 October 2015, 11 years ago.
Has Williams Carpentry & Building Ltd won public sector contracts?
Yes. Williams Carpentry & Building Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £48K), most recently from Rhondda Cynon Taf CBC.
What is the penalty if Williams Carpentry & Building 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 Williams Carpentry & Building 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.