- Companies
- Plumbers and heating engineers
- Gosport
- Cleanair Ventilation Systems Ltd
Cleanair Ventilation Systems Ltd
- Company number
- 10389416
- Incorporated
- 22 Sep 201610 years trading
- Registered office
- 1 Melville Road, Gosport, PO12 4QU
- Nature of business
- Plumbing, heat and air-conditioning installation
Cleanair Ventilation Systems Ltd is a 10-year-old private limited company registered in Gosport, company number 10389416, one of 41 plumbing and heating companies in Gosport. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 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 up £121K (+150.7%) on the year before, to £201K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £257K against £106K owed within a year: 2.4 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £201K | £257K | £106K | 2 | |
| 31 Mar 2025 | £80K | £116K | £67K | 2 | |
| 31 Mar 2024 | £65K | £98K | £39K | 2 | |
| 31 Mar 2023 | £37K | £76K | £45K | 2 | |
| 31 Mar 2022 | £21K | £104K | £90K | 2 | |
| 31 Mar 2021 | £4,420 | £20K | £98K | £117K | 2 |
| 31 Mar 2020 | £52K | £13K | £128K | £169K | 2 |
| 31 Mar 2019 | £24K | £4,146 | £87K | £102K | 0 |
| 31 Mar 2018 | £18K | £4,200 | £32K | £53K | 1 |
| 31 Mar 2017 | £1,075 | £739 | £8,776 | £29K | 1 |
Where Cleanair Ventilation Systems Ltd is registered
The registered office is in Gosport (PO12), in the Gosport local authority area, South East. Show PO12 4QU on a map.
Other trade companies in PO12
- Paws at 32 LtdCleaning companies
- New Horizons (Hampshire) LtdFinishing trades
- Smart Energy Advisers LtdElectricians
- Easy Clean (Southern) LtdCleaning companies
- RHR Energy LtdPlumbers and heating engineers
- Mitchell Tsco LtdCivil engineering
- Lyle Morgans Master Thatcher LtdRoofers
- Pebbles Cleaning Group LtdCleaning companies
What happens if Cleanair Ventilation Systems 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 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 10389416
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 September 2016 (10 years ago)
- Registered office
- 1 Melville Road, Gosport, PO12 4QU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 21 September 2026
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 Gosport
Other active plumbing and heating companies registered in Gosport.
- Cooper Heating Ltd2025
- D Mills Plumbing Services Ltd2002
- D&A Install Services Limited2021
- Daniel Reekie Limited2017
- DS Refrigeration & Air Conditioning Ltd2026
- Ecoheat South Ltd2018
- Fairweather Plumbing and Heating Ltd2025
- Gas Safe South Ltd2026
All plumbing and heating companies in Gosport · All trades in Gosport · Plumbers and heating engineers across the UK
Frequently asked questions
When are Cleanair Ventilation Systems Ltd's accounts due?
Cleanair Ventilation Systems Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Cleanair Ventilation Systems Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Cleanair Ventilation Systems Ltd still trading?
Cleanair Ventilation Systems Ltd is listed as active on the Companies House register (checked 12 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 Cleanair Ventilation Systems Ltd do?
Cleanair Ventilation Systems Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Cleanair Ventilation Systems Ltd?
Cleanair Ventilation Systems Ltd was incorporated on 22 September 2016, 10 years ago.
What is the penalty if Cleanair Ventilation Systems 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 Cleanair Ventilation Systems Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.