- Companies
- Plumbers and heating engineers
- Aylesbury
- Kool Vent Ltd
Kool Vent Ltd
- Company number
- 11920707
- Incorporated
- 2 Apr 20197 years trading
- Registered office
- 2 Griffin Industrial Mall, Griffin Lane, Aylesbury, Buckinghamshire, HP19 8BP
- Nature of business
- Plumbing, heat and air-conditioning installation
Kool Vent Ltd is a 7-year-old private limited company registered in Aylesbury, company number 11920707, one of 119 plumbing and heating companies in Aylesbury. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 up £143K (+26.5%) on the year before, to £683K.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £959K against £342K owed within a year: 2.8 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 30 Apr 2025 | £683K | £744K | £959K | £342K | 0 |
| 30 Apr 2024 | £540K | £346K | £696K | £227K | 5 |
| 30 Apr 2023 | £429K | £227K | £623K | £247K | 3 |
| 30 Apr 2022 | £197K | £255K | £124K | 3 | |
| 30 Apr 2021 | £219K | £348K | £141K | 3 | |
| 30 Apr 2020 | £147K | £218K | 3 |
Where Kool Vent Ltd is registered
The registered office is in Aylesbury (HP19), in the Buckinghamshire local authority area, South East. Show HP19 8BP on a map.
Other trade companies in HP19
- TPV Group LtdProperty developers
- Aylesbury Claims Management LtdMechanics and garages
- Abi Handyman LimitedFinishing trades
- KWK Properties LimitedProperty developers
- Redline Group Properties LimitedProperty developers
- Ridge and Crown Roofing LtdRoofers
- Lightning Performance Auto Services LimitedMechanics and garages
- Spartan Facades LtdSpecialist contractors
What happens if Kool Vent 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 11920707
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 April 2019 (7 years ago)
- Registered office
- 2 Griffin Industrial Mall, Griffin Lane, Aylesbury, Buckinghamshire, HP19 8BP
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 1 April 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 Aylesbury
Other active plumbing and heating companies registered in Aylesbury.
- Kovo Heat Ltd2023
- Lane Services Limited2026
- London Pro Plumbing Ltd2026
- M Wheatley Plumbing and Heating Ltd2018
- M&G Plumbing and Heating Ltd2024
- Mason Plumbing and Heating Limited2015
- MDP Plumbing Ltd2026
- MGR Plumbing & Heating Ltd2016
All plumbing and heating companies in Aylesbury · All trades in Aylesbury · Plumbers and heating engineers across the UK
Frequently asked questions
When are Kool Vent Ltd's accounts due?
Kool Vent Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Kool Vent Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Kool Vent Ltd still trading?
Kool Vent 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 Kool Vent Ltd do?
Kool Vent Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Kool Vent Ltd?
Kool Vent Ltd was incorporated on 2 April 2019, 7 years ago.
What is the penalty if Kool Vent 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 Kool Vent 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.