- Companies
- Plumbers and heating engineers
- Hemel Hempstead
- Connor Air Limited
Connor Air Limited
- Company number
- 17398726
- Incorporated
- 13 Aug 2026
- Registered office
- Barnacres Mill, The Denes, Hemel Hempstead, HP3 8AP
- Nature of business
- Plumbing, heat and air-conditioning installation
Connor Air Limited is a newly incorporated private limited company registered in Hemel Hempstead, company number 17398726, one of 89 plumbing and heating companies in Hemel Hempstead. Its next accounts are due at Companies House on 13 May 2028, and its first CT600 is due at HMRC on 12 August 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 Connor Air Limited is registered
The registered office is in Hemel Hempstead (HP3), in the Dacorum local authority area, East of England. Show HP3 8AP on a map.
Other trade companies in HP3
- G-Force Plumbing & Heating Contractors LimitedPlumbers and heating engineers
- Primeline Property Solutions LtdRoofers
- Elite Roof Repairs LtdRoofers
- Irv Services LtdInstallers
- Herts Number Plates LtdMotor traders
- RH Design and Electrical LtdBuilders
- Ejc Plumbing LtdPlumbers and heating engineers
- Madhouse Construction LtdBuilders
Also registered at this address
1 other company uses the same registered office as Connor Air Limited.
- Connor Construction (Watford) LimitedFinishing trades
What happens if Connor Air 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 13 May 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 14 May 2028 to 13 Jun 2028 | £150 |
| 1 to 3 months late | 14 Jun 2028 to 13 Aug 2028 | £375 |
| 3 to 6 months late | 14 Aug 2028 to 13 Nov 2028 | £750 |
| More than 6 months late | From 14 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2028 | £200 |
| 3 months late | 30 Nov 2028 | another £200 |
| 6 months late | 28 Feb 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 17398726
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 August 2026
- Registered office
- Barnacres Mill, The Denes, Hemel Hempstead, HP3 8AP
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (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 Hemel Hempstead
Other active plumbing and heating companies registered in Hemel Hempstead.
- Courtney Property Services Limited2025
- Dacorum Plumbing Ltd2026
- Davudov Ltd2019
- DC Prime Heating Limited2024
- Delux Projects Limited2011
- Dey Mechanical Services Ltd2016
- DK Heating & Plumbing Services Ltd2021
- DLG Plumbing & Heating Ltd2025
All plumbing and heating companies in Hemel Hempstead · All trades in Hemel Hempstead · Plumbers and heating engineers across the UK
Frequently asked questions
When are Connor Air Limited's accounts due?
Connor Air Limited's next accounts are due at Companies House by 13 May 2028 (in 578 days), covering the period to 31 August 2027.
When is Connor Air 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 12 August 2027, due by 12 August 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Connor Air Limited still trading?
Connor Air 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 Connor Air Limited do?
Connor Air Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Connor Air Limited?
Connor Air Limited was incorporated on 13 August 2026, less than a year ago.
What is the penalty if Connor Air 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 Connor Air 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.