- Companies
- Installers
- Orpington
- Aos Air Conditioning and Mechanical Services Limited
Aos Air Conditioning and Mechanical Services Limited
- Company number
- 13888304
- Incorporated
- 2 Feb 20224 years trading
- Registered office
- 39 High Street, Orpington, Kent, BR6 0JE
- Nature of business
- Other construction installation; Other engineering activities
Aos Air Conditioning and Mechanical Services Limited is a 4-year-old private limited company registered in Orpington, company number 13888304, one of 46 installation companies (insulation, lifts, shutters and similar) in Orpington. Its next accounts are due at Companies House on 29 June 2027, and the CT600 for the period to 29 September 2026 is due at HMRC on 29 September 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 £356K on the year before, to £356K.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £805K against £542K owed within a year: 1.5 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £356K | £269K | £805K | £542K | 1 |
| 30 Sep 2024 | £100 | £100 | £100 | 1 | |
| 28 Feb 2024 | £100 | £100 | £100 | 1 | |
| 28 Feb 2023 | £100 | £100 | £100 | 1 | |
| 28 Feb 2022 | £100 | £100 | £100 | 1 |
Where Aos Air Conditioning and Mechanical Services Limited is registered
The registered office is in Orpington (BR6), in the Bromley local authority area, London. Show BR6 0JE on a map.
Other trade companies in BR6
- Tog Fire Protection LtdPlumbers and heating engineers
- Pointfast Global LtdMachinery repair and installation
- Chebic Energy and Property Services LtdFinishing trades
- Prime Refurbishment Kent LtdBuilders
- A.D Building Services London LtdFinishing trades
- Nemo Wash and Go LtdCleaning companies
- T.E.A.Mspotless LtdCleaning companies
- Howard Construction LtdProperty developers
Shared registered office
131 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Aos Air Conditioning and Mechanical Services 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 29 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Jun 2027 to 29 Jul 2027 | £150 |
| 1 to 3 months late | 30 Jul 2027 to 29 Sep 2027 | £375 |
| 3 to 6 months late | 30 Sep 2027 to 29 Dec 2027 | £750 |
| More than 6 months late | From 30 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Sep 2027 | £200 |
| 3 months late | 29 Dec 2027 | another £200 |
| 6 months late | 29 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Sep 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
- 13888304
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 February 2022 (4 years ago)
- Registered office
- 39 High Street, Orpington, Kent, BR6 0JE
- Nature of business
- Other construction installation (SIC 43290)
Other engineering activities (SIC 71129) - Year end
- 29 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 21 October 2025
- Previous names
- Aos Air Conditioning Limited (until 21 Oct 2024)
Trent Utilities Limited (until 17 Oct 2024)
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 Orpington
Other active installation companies (insulation, lifts, shutters and similar) registered in Orpington.
- As Plumbing and Gas (London) Limited2014
- Bit Cloud Ltd2018
- Bolt Lifts Ltd2022
- Brixmont Ltd2025
- Constructiq Ltd2023
- David Smith Gas Installations Limited2019
- Deceo Ltd2011
- Elite Orbit Ltd2026
All installation companies (insulation, lifts, shutters and similar) in Orpington · All trades in Orpington · Installers across the UK
Frequently asked questions
When are Aos Air Conditioning and Mechanical Services Limited's accounts due?
Aos Air Conditioning and Mechanical Services Limited's next accounts are due at Companies House by 29 June 2027 (in 259 days), covering the period to 29 September 2026.
When is Aos Air Conditioning and Mechanical Services Limited's CT600 due?
The CT600 for the period to 29 September 2026 is due at HMRC by 29 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 June 2027.
Is Aos Air Conditioning and Mechanical Services Limited still trading?
Aos Air Conditioning and Mechanical Services 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 Aos Air Conditioning and Mechanical Services Limited do?
Aos Air Conditioning and Mechanical Services Limited is registered under Other construction installation (SIC 43290); Other engineering activities (SIC 71129).
How old is Aos Air Conditioning and Mechanical Services Limited?
Aos Air Conditioning and Mechanical Services Limited was incorporated on 2 February 2022, 4 years ago.
What is the penalty if Aos Air Conditioning and Mechanical 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 Aos Air Conditioning and Mechanical Services 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.