- Companies
- Cleaning companies
- Treharris
- South Wales Cleaning Services Limited
South Wales Cleaning Services Limited
- Company number
- 12366838
- Incorporated
- 17 Dec 20196 years trading
- Registered office
- 3 Navigation Close, Treharris, CF46 5EX
- Nature of business
- Other cleaning services
South Wales Cleaning Services Limited is a 6-year-old private limited company registered in Treharris, company number 12366838, one of 5 cleaning companies in Treharris. Companies House shows its accounts as overdue: they were due on 30 September 2026.
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 £9,836 (+59.5%) on the year before, to -£6,693.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £85 against £12K owed within a year: 0.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2020 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | -£6,693 | £85 | £85 | £12K | 1 |
| 31 Dec 2023 | -£17K | £391 | £29K | 1 | |
| 31 Dec 2022 | -£29K | £8 | £8 | £39K | 0 |
| 31 Dec 2021 | -£16K | £305 | £1,305 | £31K | 0 |
| 31 Dec 2020 | -£11K | £30K | £35K | £32K | 1 |
Where South Wales Cleaning Services Limited is registered
The registered office is in Treharris (CF46), in the Merthyr Tydfil local authority area, Wales. Show CF46 5EX on a map.
Other trade companies in CF46
- Dragon Water Services LtdPlumbers and heating engineers
- All Cleaned Up FM LtdCleaning companies
- Stadeyn Civils & Groundworks LtdCivil engineering
- JDP Plumbing & Property Maintenance LtdBuilders
- Alpha Exterior Solutions LtdCleaning companies
- Foreman's Tyres LimitedMotor traders
- Fox Electrical and Building Maintenance LtdBuilders
- L M Hydraulic Services LimitedMachinery repair and installation
What happens if South Wales Cleaning Services Limited files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 12366838
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 December 2019 (6 years ago)
- Registered office
- 3 Navigation Close, Treharris, CF46 5EX
- Nature of business
- Other cleaning services (SIC 81299)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 16 December 2025
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 Treharris
Other active cleaning companies registered in Treharris.
- TCG Facilities Ltd2020
- All Cleaned Up FM Ltd2026
- Alpha Exterior Solutions Ltd2026
- Dazzle 'N' Shine Ltd2019
All cleaning companies in Treharris · All trades in Treharris · Cleaning companies across the UK
Frequently asked questions
When are South Wales Cleaning Services Limited's accounts due?
South Wales Cleaning Services Limited's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is South Wales Cleaning Services Limited's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is South Wales Cleaning Services Limited still trading?
South Wales Cleaning Services Limited is listed as active on the Companies House register (checked 13 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 South Wales Cleaning Services Limited do?
South Wales Cleaning Services Limited is registered under Other cleaning services (SIC 81299).
How old is South Wales Cleaning Services Limited?
South Wales Cleaning Services Limited was incorporated on 17 December 2019, 6 years ago.
What is the penalty if South Wales Cleaning Services 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 South Wales Cleaning Services Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.