- Companies
- Plumbers and heating engineers
- Winchester
- Aeronix Limited
Aeronix Limited
- Company number
- 17484998
- Incorporated
- 28 Sep 2026
- Registered office
- 41 Southgate Street, Winchester, SO23 9EH
- Nature of business
- Plumbing, heat and air-conditioning installation
Aeronix Limited is a newly incorporated private limited company registered in Winchester, company number 17484998, one of 42 plumbing and heating companies in Winchester. Its next accounts are due at Companies House on 28 June 2028, and its first CT600 is due at HMRC on 27 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 Aeronix Limited is registered
The registered office is in Winchester (SO23), in the Winchester local authority area, South East. Show SO23 9EH on a map.
Other trade companies in SO23
- Z Cubic Home LtdJoiners and carpenters
- Fordstone Groundworks & Civil Engineering LtdCivil engineering
- Osr Homes LtdBuilders
- Welborne LS LimitedProperty developers
- Charlecote Sussex LimitedSpecialist contractors
- Shorewood Pankridge Street LtdBuilders
- The Home & Garden Collective LtdBuilders
- Rangers Roofing LtdRoofers
Also registered at this address
9 other companies use the same registered office as Aeronix Limited.
- A-Plus Electrical Systems LimitedElectricians
- Apollo Passive Fire LtdFinishing trades
- Apollo Plastering LimitedPlasterers
- Ardema D&B LimitedProperty developers
- J.F Practical Services LtdFinishing trades
- Jenkins Utilities LimitedCivil engineering
- JMLK Construction LtdBuilders
- Lum Electric Technology UK LtdMotor traders
- Pga Property Services LimitedFacilities management
What happens if Aeronix 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 28 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Jun 2028 to 28 Jul 2028 | £150 |
| 1 to 3 months late | 29 Jul 2028 to 28 Sep 2028 | £375 |
| 3 to 6 months late | 29 Sep 2028 to 28 Dec 2028 | £750 |
| More than 6 months late | From 29 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
- 17484998
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 September 2026
- Registered office
- 41 Southgate Street, Winchester, SO23 9EH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Winchester
Other active plumbing and heating companies registered in Winchester.
- Air Improve Limited1998
- Allbrook Heating Limited2012
- Arj Plumbing & Heating Services Ltd2018
- Bardkins Ltd2025
- Bkay Plumbing & Heating Limited2025
- Cannons Heating Services Limited2012
- Charlie Dalton Plumbing & Heating Ltd2024
- D and D Craftsmen Ltd2021
All plumbing and heating companies in Winchester · All trades in Winchester · Plumbers and heating engineers across the UK
Frequently asked questions
When are Aeronix Limited's accounts due?
Aeronix Limited's next accounts are due at Companies House by 28 June 2028 (in 624 days), covering the period to 30 September 2027.
When is Aeronix Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 27 September 2027, due by 27 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 Aeronix Limited still trading?
Aeronix 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 Aeronix Limited do?
Aeronix Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Aeronix Limited?
Aeronix Limited was incorporated on 28 September 2026, less than a year ago.
What is the penalty if Aeronix 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 Aeronix 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.