- Companies
- Cleaning companies
- Buckingham
- Sirius Clean Ltd
Sirius Clean Ltd
- Company number
- 15520633
- Incorporated
- 26 Feb 20242 years trading
- Registered office
- Whiteleaf Business Centre, 11 Little Balmer, Buckingham, MK18 1TF
- Nature of business
- General cleaning of buildings; Other cleaning services
Sirius Clean Ltd is a 2-year-old private limited company registered in Buckingham, company number 15520633, one of 18 cleaning companies in Buckingham. 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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Financial snapshot, 2025
From the balance sheet at 28 February 2025, as filed at Companies House.
Where Sirius Clean Ltd is registered
The registered office is in Buckingham (MK18), in the Buckinghamshire local authority area, South East. Show MK18 1TF on a map.
Other trade companies in MK18
- S L Haynes Master Thatcher LimitedRoofers
- Horizon Solar Group LtdElectricians
- RFR Custom Car Bodyworkz LtdMechanics and garages
- Used Truck and Trailer Sales LtdMotor traders
- Gatorplay LtdInstallers
- Automobile Kits LtdMotor traders
- Emily Touch LtdCleaning companies
- Amco Mechanical LtdPlumbers and heating engineers
Also registered at this address
22 other companies use the same registered office as Sirius Clean Ltd.
- Alse International LimitedMachinery repair and installation
- Apollo Construction and Development LimitedBuilders
- Ask Install and Build LtdProperty developers
- Burley Estates LtdProperty developers
- Cognitive Construction LimitedBuilders
- Darren Pearce Property Maintenance LtdFinishing trades
- Ecovery Innovations LimitedMachinery repair and installation
- G Hobbs Developments LimitedLandscapers and gardeners
- Ge Electricals (BW) LimitedElectricians
- Ge123 Electricals LimitedElectricians
- I Teach Robotics LimitedMachinery repair and installation
- JGC Automotive LimitedMechanics and garages
- Joe's Window Cleaning LimitedCleaning companies
- Lewis Technical Services Ltd.Machinery repair and installation
- Meridian Interiors LimitedSpecialist contractors
- N J R Contracts LimitedInstallers
- Penguin Leisure Construction LtdSpecialist contractors
- Penguin Leisure LimitedSpecialist contractors
- Sauros LimitedMachinery repair and installation
- Tam International LimitedMachinery repair and installation
- Vonmount LimitedMechanics and garages
- Winwood Construction (UK) LtdGroundworks and demolition
What happens if Sirius Clean 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 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
- 15520633
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 February 2024 (2 years ago)
- Registered office
- Whiteleaf Business Centre, 11 Little Balmer, Buckingham, MK18 1TF
- Nature of business
- General cleaning of buildings (SIC 81210)
Other cleaning services (SIC 81299) - Year end
- 29 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 25 February 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 Buckingham
Other active cleaning companies registered in Buckingham.
- Vale Chimneys Ltd2015
- Wheelie Good Cleaning Services Ltd2025
- Armoury Detailing Ltd2021
- Burgess Building Maintenance Limited2019
- C M Coleman Ltd2012
- Complete Cleaning Services (London) Limited2007
- Complete Shine Solutions Ltd2026
- Diamond Finish Cleaners Ltd2021
All cleaning companies in Buckingham · All trades in Buckingham · Cleaning companies across the UK
Frequently asked questions
When are Sirius Clean Ltd's accounts due?
Sirius Clean Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Sirius Clean Ltd'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 Sirius Clean Ltd still trading?
Sirius Clean 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 Sirius Clean Ltd do?
Sirius Clean Ltd is registered under General cleaning of buildings (SIC 81210); Other cleaning services (SIC 81299).
How old is Sirius Clean Ltd?
Sirius Clean Ltd was incorporated on 26 February 2024, 2 years ago.
What is the penalty if Sirius Clean 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 Sirius Clean 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.