- Company number
- 12323859
- Incorporated
- 20 Nov 20196 years trading
- Registered office
- 98 Wentworth Crescent, Hayes, UB3 1NR
- Nature of business
- Construction of domestic buildings; Roofing activities
Diamond Joineries Ltd is a 6-year-old private limited company registered in Hayes, company number 12323859, one of 850 building contractors in Hayes. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £1,782 (-48.3%) on the year before, to £1,911.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £26K against £5,883 owed within a year: 4.5 times cover.
- 3 employees on average, up from 2 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £1,911 | £26K | £5,883 | 3 | |
| 30 Nov 2024 | £3,693 | £35K | £13K | 2 | |
| 30 Nov 2023 | £4,046 | £22K | £18K | 2 | |
| 30 Nov 2022 | £3,748 | £14K | 1 | ||
| 30 Nov 2021 | £1,443 | £20K | £28K | £14K | 1 |
| 30 Nov 2020 | £1,739 | £29K | £14K | 0 |
Where Diamond Joineries Ltd is registered
The registered office is in Hayes (UB3), in the Hillingdon local authority area, London. Show UB3 1NR on a map.
Other trade companies in UB3
- Rennove LimitedProperty developers
- KSJ Design & Build LtdBuilders
- KCRQ LimitedCleaning companies
- HKR Roofing LtdRoofers
- Syg Development Group LtdProperty developers
- Ironspan Industrial Services LtdMachinery repair and installation
- RK9 LimitedBuilders
- Elite Construction and Roofing LimitedBuilders
Also registered at this address
1 other company uses the same registered office as Diamond Joineries Ltd.
- Diamond Roofing & Build LtdBuilders
What happens if Diamond Joineries 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 12323859
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 November 2019 (6 years ago)
- Registered office
- 98 Wentworth Crescent, Hayes, UB3 1NR
- Nature of business
- Construction of domestic buildings (SIC 41202)
Roofing activities (SIC 43910) - Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 15 November 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Hayes
Other active building contractors registered in Hayes.
- Diamond Roofing & Build Ltd2017
- Diamond Virk Construction Limited2025
- Diligent Global Services Ltd2025
- Diljit Singh UK Construction Limited2023
- Dipenkumar Ltd2024
- DK Prime Build Ltd2026
- DND Builder Ltd2019
- DPS Construction London Limited2024
All building contractors in Hayes · All trades in Hayes · Builders across the UK
Frequently asked questions
When are Diamond Joineries Ltd's accounts due?
Diamond Joineries Ltd's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Diamond Joineries Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Diamond Joineries Ltd still trading?
Diamond Joineries 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 Diamond Joineries Ltd do?
Diamond Joineries Ltd is registered under Construction of domestic buildings (SIC 41202); Roofing activities (SIC 43910).
How old is Diamond Joineries Ltd?
Diamond Joineries Ltd was incorporated on 20 November 2019, 6 years ago.
What is the penalty if Diamond Joineries 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 Diamond Joineries 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.