- Companies
- Electricians
- Aylesbury
- Aer Fire&Security Ltd
Aer Fire&Security Ltd
- Company number
- 13229020
- Incorporated
- 26 Feb 20215 years trading
- Registered office
- 26 Whinham Green, Berryfields, Aylesbury, Buckinghamshire, HP18 0XJ
- Nature of business
- Electrical installation; Security systems service activities
Aer Fire&Security Ltd is a 5-year-old private limited company registered in Aylesbury, company number 13229020, one of 110 electrical contractors in Aylesbury. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
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 £97 (-97%) on the year before, to £3.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2022 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2026 | £3 | £3 | £0 | 0 | |
| 28 Feb 2025 | £100 | £299 | £199 | 0 | |
| 29 Feb 2024 | £3,057 | £3,981 | £924 | 0 | |
| 28 Feb 2023 | £100 | £493 | £393 | 0 | |
| 28 Feb 2022 | £100 | £540 | 0 |
Where Aer Fire&Security Ltd is registered
The registered office is in Aylesbury (HP18), in the Buckinghamshire local authority area, South East. Show HP18 0XJ on a map.
Other trade companies in HP18
- Panels and Piers Building and Renovation LtdProperty developers
- Aylesbury Drainage Services LtdPlumbers and heating engineers
- Firmus Roofing and Building LtdRoofers
- Cris Global LtdMotor traders
- Peek LtdMotor traders
- MDP Plumbing LtdPlumbers and heating engineers
- Experion Decorations LtdPainters and decorators
- Vertex Modular LtdBuilders
What happens if Aer Fire&Security 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 30 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 13229020
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 February 2021 (5 years ago)
- Registered office
- 26 Whinham Green, Berryfields, Aylesbury, Buckinghamshire, HP18 0XJ
- Nature of business
- Electrical installation (SIC 43210)
Security systems service activities (SIC 80200) - Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 9 September 2026
- Previous names
- FBM Build Ltd (until 9 Sep 2026)
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Aylesbury
Other active electrical contractors registered in Aylesbury.
- Ai Energy Limited2023
- Aj Coffey Electrical Services Ltd2024
- All Sparks Electrics Security Services Limited2012
- Altok Ltd2024
- Ar Intech Ltd2020
- Atf Electrical Limited2017
- Aylesbury Electrical Services Limited1977
- Aylesbury Fire Systems Ltd.1994
All electrical contractors in Aylesbury · All trades in Aylesbury · Electricians across the UK
Frequently asked questions
When are Aer Fire&Security Ltd's accounts due?
Aer Fire&Security Ltd's next accounts are due at Companies House by 30 November 2027 (in 413 days), covering the period to 28 February 2027.
When is Aer Fire&Security Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is Aer Fire&Security Ltd still trading?
Aer Fire&Security 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 Aer Fire&Security Ltd do?
Aer Fire&Security Ltd is registered under Electrical installation (SIC 43210); Security systems service activities (SIC 80200).
How old is Aer Fire&Security Ltd?
Aer Fire&Security Ltd was incorporated on 26 February 2021, 5 years ago.
What is the penalty if Aer Fire&Security 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 Aer Fire&Security 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.