- Companies
- Machinery repair and installation
- Prestwick
- Keir Air Ltd. Ltd
Keir Air Ltd. Ltd
- Company number
- SC893123
- Incorporated
- 18 Jun 2026
- Registered office
- 46 Coronation Street, Prestwick, KA9 2QW
- Nature of business
- Repair and maintenance of aircraft and spacecraft
Keir Air Ltd. Ltd is a newly incorporated private limited company registered in Prestwick, company number SC893123, one of 18 machinery repair and installation companies in Prestwick. Its next accounts are due at Companies House on 18 March 2028, and its first CT600 is due at HMRC on 17 June 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 Keir Air Ltd. Ltd is registered
The registered office is in Prestwick (KA9), in the South Ayrshire local authority area, Scotland. Show KA9 2QW on a map.
Other trade companies in KA9
- R.McCulloch Electrical Services LtdElectricians
- Vantage Rope Access LtdSpecialist contractors
- McDowall Aviation Consulting LimitedMachinery repair and installation
- J Smith Exterior Cleaning LtdCleaning companies
- Devo Group LtdElectricians
- TS Aero Maintenance Services LtdMachinery repair and installation
- Northwing Aerospace LtdMachinery repair and installation
- Ayrshire Fencing & Gardening LimitedLandscapers and gardeners
What happens if Keir Air Ltd. 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 18 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 19 Mar 2028 to 18 Apr 2028 | £150 |
| 1 to 3 months late | 19 Apr 2028 to 18 Jun 2028 | £375 |
| 3 to 6 months late | 19 Jun 2028 to 18 Sep 2028 | £750 |
| More than 6 months late | From 19 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- SC893123
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 June 2026
- Registered office
- 46 Coronation Street, Prestwick, KA9 2QW
- Nature of business
- Repair and maintenance of aircraft and spacecraft (SIC 33160)
- Year end
- 30 June (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 Prestwick
Other active machinery repair and installation companies registered in Prestwick.
- McDowall Aviation Consulting Limited2026
- McNeeaviation Limited2024
- P Duffey Services Ltd2016
- Pik(Premindrakiyaan)Aero Services Limited2022
- PM Aerotechnics Ltd2024
- Polar Refrigeration & Air Conditioning Ltd2010
- RPH Solutions Limited2023
- Scottwind Renewables Ltd2024
All machinery repair and installation companies in Prestwick · All trades in Prestwick · Machinery repair and installation across the UK
Frequently asked questions
When are Keir Air Ltd. Ltd's accounts due?
Keir Air Ltd. Ltd's next accounts are due at Companies House by 18 March 2028 (in 522 days), covering the period to 30 June 2027.
When is Keir Air Ltd. 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 17 June 2027, due by 17 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Keir Air Ltd. Ltd still trading?
Keir Air Ltd. 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 Keir Air Ltd. Ltd do?
Keir Air Ltd. Ltd is registered under Repair and maintenance of aircraft and spacecraft (SIC 33160).
How old is Keir Air Ltd. Ltd?
Keir Air Ltd. Ltd was incorporated on 18 June 2026, less than a year ago.
What is the penalty if Keir Air Ltd. 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 Keir Air Ltd. 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.