- Companies
- Cleaning companies
- Diamond Cleanz Ltd
Diamond Cleanz Ltd
- Company number
- 16768131
- Incorporated
- 7 Oct 20251 year trading
- Registered office
- 56 Maes Derw, Cyffordd Llandudno, LL31 9AN
- Nature of business
- General cleaning of buildings
Diamond Cleanz Ltd is a 1-year-old private limited company registered in Cyffordd Llandudno, company number 16768131, one of the UK's cleaning companies. Its next accounts are due at Companies House on 7 July 2027, and its first CT600 is due at HMRC on 6 October 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Diamond Cleanz Ltd is registered
The registered office is in Cyffordd Llandudno (LL31), in the Conwy local authority area, Wales. Show LL31 9AN on a map.
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What happens if Diamond Cleanz 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 7 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 8 Jul 2027 to 7 Aug 2027 | £150 |
| 1 to 3 months late | 8 Aug 2027 to 7 Oct 2027 | £375 |
| 3 to 6 months late | 8 Oct 2027 to 7 Jan 2028 | £750 |
| More than 6 months late | From 8 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16768131
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 October 2025 (1 year ago)
- Registered office
- 56 Maes Derw, Cyffordd Llandudno, LL31 9AN
- Nature of business
- General cleaning of buildings (SIC 81210)
- Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies
Other active cleaning companies.
Frequently asked questions
When are Diamond Cleanz Ltd's accounts due?
Diamond Cleanz Ltd's next accounts are due at Companies House by 7 July 2027 (in 267 days), covering the period to 31 October 2026.
When is Diamond Cleanz Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 6 October 2026, due by 6 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Diamond Cleanz Ltd still trading?
Diamond Cleanz 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 Cleanz Ltd do?
Diamond Cleanz Ltd is registered under General cleaning of buildings (SIC 81210).
How old is Diamond Cleanz Ltd?
Diamond Cleanz Ltd was incorporated on 7 October 2025, 1 year ago.
What is the penalty if Diamond Cleanz 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 Cleanz 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.