- Companies
- Cleaning companies
- St Helens
- McClymont and Sons Ltd
McClymont and Sons Ltd
- Company number
- 15010667
- Incorporated
- 18 Jul 20233 years trading
- Registered office
- ST Anns Mount, 166 Prescot Road, St Helens, Merseyside, WA10 3TS
- Nature of business
- Other cleaning services
McClymont and Sons Ltd is a 3-year-old private limited company registered in St Helens, company number 15010667, one of 34 cleaning companies in St Helens. Companies House shows its accounts as overdue: they were due on 31 July 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where McClymont and Sons Ltd is registered
The registered office is in St Helens (WA10), in the St. Helens local authority area, North West. Show WA10 3TS on a map.
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- Ste Leatherbarrow Building and Roofing LtdBuilders
- Maqur Services LtdBuilders
- Speakman Chilled-Worx LtdMachinery repair and installation
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Also registered at this address
4 other companies use the same registered office as McClymont and Sons Ltd.
- CHT Technical Services LtdMachinery repair and installation
- Cleopatra Capital LtdMotor traders
- RC Electrical NW LtdElectricians
- SM Roofing and Cladding LimitedBuilders
What happens if McClymont and Sons Ltd files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 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 Aug 2026 to 31 Aug 2026 | £150 |
| 1 to 3 months late | 1 Sep 2026 to 31 Oct 2026 | £375 |
| 3 to 6 months late | 1 Nov 2026 to 31 Jan 2027 | £750 |
| More than 6 months late | From 1 Feb 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2026 | £200 |
| 3 months late | 31 Jan 2027 | another £200 |
| 6 months late | 30 Apr 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 15010667
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 July 2023 (3 years ago)
- Registered office
- ST Anns Mount, 166 Prescot Road, St Helens, Merseyside, WA10 3TS
- Nature of business
- Other cleaning services (SIC 81299)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2024
- Last confirmation statement
- 17 July 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 St Helens
Other active cleaning companies registered in St Helens.
- MJM Valets Limited2024
- Northern Industrial Services Ltd2007
- Pristine Clean NW Ltd2025
- Pristineservicesmerseyside Ltd2025
- R3 Valets Ltd2025
- Rokserv Limited2009
- Rtvalets & Detailing Ltd2025
- Sarah's Sparkle and Shine Ltd2026
All cleaning companies in St Helens · All trades in St Helens · Cleaning companies across the UK
Frequently asked questions
When are McClymont and Sons Ltd's accounts due?
McClymont and Sons Ltd's accounts were due at Companies House on 31 July 2026 and the register shows them as overdue.
When is McClymont and Sons 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 31 July 2025, due by 31 July 2026, and one for the period to 31 October 2025, due by 31 October 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is McClymont and Sons Ltd still trading?
McClymont and Sons Ltd 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 McClymont and Sons Ltd do?
McClymont and Sons Ltd is registered under Other cleaning services (SIC 81299).
How old is McClymont and Sons Ltd?
McClymont and Sons Ltd was incorporated on 18 July 2023, 3 years ago.
What is the penalty if McClymont and Sons 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 McClymont and Sons Ltd 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.