- Companies
- Machinery repair and installation
- London
- Simply Air Ltd
Simply Air Ltd
- Company number
- 17432708
- Incorporated
- 2 Sep 2026
- Registered office
- 29 Woodfield Avenue, London, NW9 6PR
- Nature of business
- Repair of electrical equipment; Steam and air conditioning supply
Simply Air Ltd is a newly incorporated private limited company registered in London, company number 17432708, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 2 June 2028, and its first CT600 is due at HMRC on 1 September 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Simply Air Ltd is registered
The registered office is in London (NW9), in the Barnet local authority area, London. Show NW9 6PR on a map.
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Also registered at this address
1 other company uses the same registered office as Simply Air Ltd.
- Air Conditioning Service London LtdMachinery repair and installation
What happens if Simply Air 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 2 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 3 Jun 2028 to 2 Jul 2028 | £150 |
| 1 to 3 months late | 3 Jul 2028 to 2 Sep 2028 | £375 |
| 3 to 6 months late | 3 Sep 2028 to 2 Dec 2028 | £750 |
| More than 6 months late | From 3 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2029 | 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
- 17432708
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 September 2026
- Registered office
- 29 Woodfield Avenue, London, NW9 6PR
- Nature of business
- Repair of electrical equipment (SIC 33140)
Steam and air conditioning supply (SIC 35300) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in London
Other active machinery repair and installation companies registered in London.
- Siodan Ltd2021
- Sivar Refrigeration and Air Conditioning Ltd2021
- Sixtech Ltd2025
- Skills Essilfie Electrical Services Limited2020
- Skinnersig Ltd2021
- Sky Safe Aerospace Limited2026
- Skyrepair Ltd2018
- SL Railway Consultancy Services Ltd2023
All machinery repair and installation companies in London · All trades in London · Machinery repair and installation across the UK
Frequently asked questions
When are Simply Air Ltd's accounts due?
Simply Air Ltd's next accounts are due at Companies House by 2 June 2028 (in 598 days), covering the period to 30 September 2027.
When is Simply Air 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 1 September 2027, due by 1 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Simply Air Ltd still trading?
Simply Air 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 Simply Air Ltd do?
Simply Air Ltd is registered under Repair of electrical equipment (SIC 33140); Steam and air conditioning supply (SIC 35300).
How old is Simply Air Ltd?
Simply Air Ltd was incorporated on 2 September 2026, less than a year ago.
What is the penalty if Simply Air 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 Simply Air 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.