- Companies
- Cleaning companies
- Newcastle
- Diamond Cleaning and Maintenance Limited
Diamond Cleaning and Maintenance Limited
- Company number
- 12315640
- Incorporated
- 14 Nov 20196 years trading
- Registered office
- 12 Roebuck Drive, Baldwins Gate, Newcastle, ST5 5FE
- Nature of business
- General cleaning of buildings; Window cleaning services; Other cleaning services
Diamond Cleaning and Maintenance Limited is a 6-year-old private limited company registered in Newcastle, company number 12315640, one of 24 cleaning companies in Newcastle. 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.
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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 £1,014 (+4.1%) on the year before, to £26K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £54K against £29K owed within a year: 1.9 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 5 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £26K | £2,070 | £54K | £29K | 2 |
| 29 Feb 2024 | £25K | £457 | £30K | £6,361 | 1 |
| 30 Nov 2022 | £3,482 | £458 | £1,406 | £1,705 | 1 |
| 30 Nov 2021 | £14 | £577 | £1,399 | £6,182 | 1 |
| 30 Nov 2020 | £510 | £4,136 | £4,522 | 1 |
Where Diamond Cleaning and Maintenance Limited is registered
The registered office is in Newcastle (ST5), in the Newcastle-under-Lyme local authority area, West Midlands. Show ST5 5FE on a map.
Other trade companies in ST5
- Stonesmith Construction LtdSpecialist contractors
- Restore Property Group LimitedInstallers
- DT Mobile Engineering LtdMechanics and garages
- Woolliscroft Homes (Mow Cop) LimitedBuilders
- Brazier Construction (Stoke on Trent) New LimitedFinishing trades
- Cav-Ex Solutions LtdSpecialist contractors
- Matrix Key Solutions LimitedMechanics and garages
- NW Ground Solutions LtdCivil engineering
What happens if Diamond Cleaning and Maintenance 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
- 12315640
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 November 2019 (6 years ago)
- Registered office
- 12 Roebuck Drive, Baldwins Gate, Newcastle, ST5 5FE
- Nature of business
- General cleaning of buildings (SIC 81210)
Window cleaning services (SIC 81221)
Other cleaning services (SIC 81299) - Year end
- 29 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 19 August 2026
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 in Newcastle
Other active cleaning companies registered in Newcastle.
- E&A Cleaning Limited2025
- Fab General Services Ltd2025
- Green Cleen (Stoke) Limited2024
- Halo All Surface Cleaning Limited2000
- J K Goche Services Ltd2024
- Jet Wash North East Limited2016
- Joe & Son Cleaning Ltd2024
- Joe's Gleaming Ovens Ltd2023
All cleaning companies in Newcastle · All trades in Newcastle · Cleaning companies across the UK
Frequently asked questions
When are Diamond Cleaning and Maintenance Limited's accounts due?
Diamond Cleaning and Maintenance 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 Diamond Cleaning and Maintenance 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 Diamond Cleaning and Maintenance Limited still trading?
Diamond Cleaning and Maintenance 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 Diamond Cleaning and Maintenance Limited do?
Diamond Cleaning and Maintenance Limited is registered under General cleaning of buildings (SIC 81210); Window cleaning services (SIC 81221); Other cleaning services (SIC 81299).
How old is Diamond Cleaning and Maintenance Limited?
Diamond Cleaning and Maintenance Limited was incorporated on 14 November 2019, 6 years ago.
What is the penalty if Diamond Cleaning and Maintenance 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 Diamond Cleaning and Maintenance 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.