- Companies
- Machinery repair and installation
- Slough
- A-1 Aviation National Services Ltd
A-1 Aviation National Services Ltd
- Company number
- 11752234
- Incorporated
- 7 Jan 20197 years trading
- Registered office
- 2 Chapels Close, Cippenham, Slough, Berkshire, SL1 5TG
- Nature of business
- Repair of machinery; Repair of electrical equipment; Repair of other equipment; specialised design activities
A-1 Aviation National Services Ltd is a 7-year-old private limited company registered in Slough, company number 11752234, one of 62 machinery repair and installation companies in Slough. Its next accounts are due at Companies House on 29 December 2026, and the CT600 for the period to 29 March 2026 is due at HMRC on 29 March 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 down £2,379 (-13.3%) on the year before, to £16K.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £18K against £4,355 owed within a year: 4.2 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £16K | £18K | £4,355 | 2 | |
| 31 Mar 2024 | £18K | £34K | £19K | 1 | |
| 31 Mar 2023 | £24K | £46K | £22K | 1 | |
| 31 Mar 2022 | -£1,207 | £5,632 | £7,284 | 1 | |
| 31 Mar 2021 | -£3,807 | £3,327 | £7,929 | 1 | |
| 31 Mar 2020 | £1,868 | £7,499 | £6,814 | 1 |
Where A-1 Aviation National Services Ltd is registered
The registered office is in Slough (SL1), in the Slough local authority area, South East. Show SL1 5TG on a map.
Other trade companies in SL1
- Yanky Construction LtdBuilders
- Westside Automotive LtdMotor traders
- Shadeworks LtdInstallers
- Yad Building Services LimitedBuilders
- Slough Vehicle Repair Centre LtdMechanics and garages
- Hadi Automotive LtdMotor traders
- Imperial Berkshire Motors LtdMotor traders
- MDN General LtdBuilders
What happens if A-1 Aviation National Services 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 29 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Dec 2026 to 29 Jan 2027 | £150 |
| 1 to 3 months late | 30 Jan 2027 to 29 Mar 2027 | £375 |
| 3 to 6 months late | 30 Mar 2027 to 29 Jun 2027 | £750 |
| More than 6 months late | From 30 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Mar 2027 | £200 |
| 3 months late | 29 Jun 2027 | another £200 |
| 6 months late | 29 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Mar 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
- 11752234
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 January 2019 (7 years ago)
- Registered office
- 2 Chapels Close, Cippenham, Slough, Berkshire, SL1 5TG
- Nature of business
- Repair of machinery (SIC 33120)
Repair of electrical equipment (SIC 33140)
Repair of other equipment (SIC 33190)
specialised design activities (SIC 74100) - Year end
- 29 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 6 January 2026
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 Slough
Other active machinery repair and installation companies registered in Slough.
- Adam's Repairs and Supply Ltd2025
- Aerobus Maintenance Limited2020
- Alinmead Limited1999
- Ani’S Tech Repairs Ltd2025
- Arefix Limited2021
- Artur Automation Solutions Ltd2023
- Artus Logistics Ltd2015
- Berks Agro Ltd2023
All machinery repair and installation companies in Slough · All trades in Slough · Machinery repair and installation across the UK
Frequently asked questions
When are A-1 Aviation National Services Ltd's accounts due?
A-1 Aviation National Services Ltd's next accounts are due at Companies House by 29 December 2026 (in 77 days), covering the period to 29 March 2026.
When is A-1 Aviation National Services Ltd's CT600 due?
The CT600 for the period to 29 March 2026 is due at HMRC by 29 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 December 2026.
Is A-1 Aviation National Services Ltd still trading?
A-1 Aviation National Services 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 A-1 Aviation National Services Ltd do?
A-1 Aviation National Services Ltd is registered under Repair of machinery (SIC 33120); Repair of electrical equipment (SIC 33140); Repair of other equipment (SIC 33190); specialised design activities (SIC 74100).
How old is A-1 Aviation National Services Ltd?
A-1 Aviation National Services Ltd was incorporated on 7 January 2019, 7 years ago.
What is the penalty if A-1 Aviation National Services 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 A-1 Aviation National Services 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.