- Companies
- Finishing trades
- Chorley
- Diamond Seal UK Ltd
Diamond Seal UK Ltd
- Company number
- 06661888
- Incorporated
- 1 Aug 200818 years trading
- Registered office
- 2 Heath Paddock Hut Lane, Heath Charnock, Chorley, Lancashire, PR6 9FP
- Nature of business
- Other building completion and finishing; Roofing activities
Diamond Seal UK Ltd is a 18-year-old private limited company registered in Chorley, company number 06661888, one of 64 building finishing companies in Chorley. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £29K (-64.1%) on the year before, to £16K.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £10K against £38K owed within a year: 0.3 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £16K | £10K | £38K | 4 | |
| 31 Aug 2024 | £46K | £24K | £63K | 4 | |
| 31 Aug 2023 | £52K | £40K | £46K | £43K | 2 |
| 31 Aug 2022 | £60K | £67K | £67K | £62K | 0 |
| 31 Aug 2021 | £40K | £50K | £52K | £11K | 0 |
Where Diamond Seal UK Ltd is registered
The registered office is in Chorley (PR6), in the Chorley local authority area, North West. Show PR6 9FP on a map.
Other trade companies in PR6
- JB Brothers LtdCivil engineering
- N Lambert Property Services LtdPlumbers and heating engineers
- FST 2 LtdMotor traders
- B&R House Service LtdFinishing trades
- Windell Developments LtdBuilders
- Moorstead LimitedLandscapers and gardeners
- Optimal Home Management LtdBuilders
- Cosicool Air Conditioning LtdPlumbers and heating engineers
What happens if Diamond Seal UK 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 06661888
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 August 2008 (18 years ago)
- Registered office
- 2 Heath Paddock Hut Lane, Heath Charnock, Chorley, Lancashire, PR6 9FP
- Nature of business
- Other building completion and finishing (SIC 43390)
Roofing activities (SIC 43910) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 16 April 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Chorley
Other active building finishing companies registered in Chorley.
- Ena Property Services Ltd2016
- Erh Contracting Ltd2017
- Eze Trade Ltd2014
- Flow Screed Plus Ltd2025
- Fuller Houses Ltd2025
- GB Kitchen Solutions Ltd2019
- Go-To Developments Ltd2024
- GPS Render Systems Ltd2026
All building finishing companies in Chorley · All trades in Chorley · Finishing trades across the UK
Frequently asked questions
When are Diamond Seal UK Ltd's accounts due?
Diamond Seal UK Ltd's next accounts are due at Companies House by 31 May 2027 (in 229 days), covering the period to 31 August 2026.
When is Diamond Seal UK Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Diamond Seal UK Ltd still trading?
Diamond Seal UK 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 Seal UK Ltd do?
Diamond Seal UK Ltd is registered under Other building completion and finishing (SIC 43390); Roofing activities (SIC 43910).
How old is Diamond Seal UK Ltd?
Diamond Seal UK Ltd was incorporated on 1 August 2008, 18 years ago.
What is the penalty if Diamond Seal UK 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 Seal UK 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.