- Companies
- Plumbers and heating engineers
- High Wycombe
- KB Ventilation Limited
KB Ventilation Limited
- Company number
- 16719016
- Incorporated
- 15 Sep 20251 year trading
- Registered office
- Oakingham House, Frederick Place, High Wycombe, Buckinghamshire, HP11 1JU
- Nature of business
- Plumbing, heat and air-conditioning installation
KB Ventilation Limited is a 1-year-old private limited company registered in High Wycombe, company number 16719016, one of 120 plumbing and heating companies in High Wycombe. 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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Financial snapshot, 2026
From the balance sheet at 31 March 2026, as filed at Companies House.
Where KB Ventilation Limited is registered
The registered office is in High Wycombe (HP11), in the Buckinghamshire local authority area, South East. Show HP11 1JU on a map.
Other trade companies in HP11
- Voltenara Energy LtdInstallers
- 2M Cars Sales LtdMotor traders
- Medway Cars LimitedMotor traders
- Chilterns Air Conditioning LtdPlumbers and heating engineers
- Foundries Roofing and Building LtdFinishing trades
- Service Heat and Cool LimitedPlumbers and heating engineers
- Goat & Co UK LtdProperty developers
- Eighty Eighty Services LimitedElectricians
Also registered at this address
6 other companies use the same registered office as KB Ventilation Limited.
- JDM Heating & Plumbing LtdPlumbers and heating engineers
- Martin (UK) Roofing Systems LimitedRoofers
- Rees & Brookman LimitedPlumbers and heating engineers
- Service Heat and Cool LimitedPlumbers and heating engineers
- Suite-Bathrooms - Dave Spicer LtdPlumbers and heating engineers
- Yellow Interiors LimitedFinishing trades
What happens if KB Ventilation 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 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
- 16719016
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 September 2025 (1 year ago)
- Registered office
- Oakingham House, Frederick Place, High Wycombe, Buckinghamshire, HP11 1JU
- 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
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 High Wycombe
Other active plumbing and heating companies registered in High Wycombe.
- Kingdom Heating Services Ltd2021
- KLT Plumbing & Heating Limited2025
- KPW Ltd2007
- Layton Air Conditioning Limited2025
- London Improvements Ltd2022
- M Hale Limited2018
- M P Ferguson Ltd2005
- Main Plumbing Limited2021
All plumbing and heating companies in High Wycombe · All trades in High Wycombe · Plumbers and heating engineers across the UK
Frequently asked questions
When are KB Ventilation Limited's accounts due?
KB Ventilation Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is KB Ventilation Limited'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 KB Ventilation Limited still trading?
KB Ventilation Limited 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 KB Ventilation Limited do?
KB Ventilation Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is KB Ventilation Limited?
KB Ventilation Limited was incorporated on 15 September 2025, 1 year ago.
What is the penalty if KB Ventilation 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 KB Ventilation Limited 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.