- Companies
- Installers
- London
- Sterilised Air Solutions Limited
Sterilised Air Solutions Limited
- Company number
- 15869705
- Incorporated
- 1 Aug 20242 years trading
- Registered office
- 5 ST. John's Lane, London, EC1M 4BH
- Nature of business
- Other construction installation
Sterilised Air Solutions Limited is a 2-year-old private limited company registered in London, company number 15869705, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 31 May 2027, and its first CT600 is due at HMRC on 30 August 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 30 August 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Sterilised Air Solutions Limited is registered
The registered office is in London (EC1M), in the Islington local authority area, London. Show EC1M 4BH on a map.
Other trade companies in EC1M
- Uoutasy LtdProperty developers
- Common Machines LimitedMachinery repair and installation
- Aevum Consulting LimitedProperty developers
- Sre B3 LimitedProperty developers
- Surrey Projects Group LtdBuilders
- Hampstead Flooring LtdFloor and wall tilers
- House Clarence LimitedProperty developers
- Suncat 1 LimitedProperty developers
Also registered at this address
3 other companies use the same registered office as Sterilised Air Solutions Limited.
- Globalcustom Commerce LLC LtdMotor traders
- GP Global Equipment LimitedBuilders
- The Watchmaker (London) LtdRepair services
What happens if Sterilised Air Solutions 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 15869705
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 August 2024 (2 years ago)
- Registered office
- 5 ST. John's Lane, London, EC1M 4BH
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 August 2025
- Last confirmation statement
- 31 July 2026
- Previous names
- Sanitised Air Solutions Limited (until 6 Jun 2025)
Clensair Limited (until 3 Jun 2025)
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Sterling Contracting Ltd2023
- Sterling Renewables Limited2026
- Steve and Co Services Ltd2025
- Stilex Solution Ltd2022
- Stokes Creative Ltd2025
- Stone & More Ltd2021
- Stone and Woodshop Installation Ltd2025
- Stone Art London Ltd2018
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Frequently asked questions
When are Sterilised Air Solutions Limited's accounts due?
Sterilised Air Solutions Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Sterilised Air Solutions Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 August 2026, due by 30 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sterilised Air Solutions Limited still trading?
Sterilised Air Solutions 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 Sterilised Air Solutions Limited do?
Sterilised Air Solutions Limited is registered under Other construction installation (SIC 43290).
How old is Sterilised Air Solutions Limited?
Sterilised Air Solutions Limited was incorporated on 1 August 2024, 2 years ago.
What is the penalty if Sterilised Air Solutions 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 Sterilised Air Solutions 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.