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- Droitwich
- KMJ Ventilation Limited
Company profile · Plumbers and heating engineers
KMJ Ventilation Limited
KMJ Ventilation Limited is a 24-year-old private limited company registered in Droitwich, company number 04542915, one of 25 plumbing and heating companies in Droitwich. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 September 2025, as filed at Companies House.
KMJ Ventilation Limited over the years
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 down £5,043 (-3.6%) on the year before, to £133K.
- Net assets rose in 2 of 9 year-on-year comparisons on record.
- Current assets of £203K against £84K owed within a year: 2.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £133K | £203K | £84K | 1 | |
| 30 Sep 2024 | £138K | £209K | £89K | 1 | |
| 30 Sep 2023 | £141K | £204K | £88K | 1 | |
| 30 Sep 2022 | £144K | £202K | £71K | 1 | |
| 30 Sep 2021 | £149K | £224K | £91K | 1 | |
| 30 Sep 2020 | £158K | £217K | £80K | 1 | |
| 30 Sep 2019 | £181K | £234K | £71K | ||
| 30 Sep 2018 | £203K | £290K | £111K | ||
| 30 Sep 2017 | £190K | £255K | £77K | ||
| 30 Sep 2016 | £186K | £181K | £261K | £86K |
Where KMJ Ventilation Limited is registered
The registered office is in Droitwich (WR9), in the Wychavon local authority area, West Midlands. Show WR9 7DQ on a map.
Other trade companies in WR9
- Viking Patios and Fencing LtdLandscapers and gardeners
- CPW Construction LtdBuilders
- D G Cables LimitedElectricians
- D and J Timber and Garden Rooms LimitedJoiners and carpenters
- Classic Plasterwork LimitedPlasterers
- Pretty Homes (Stock Green) LimitedCivil engineering
- J Field Commercial LtdBuilders
- SPH Property Solutions LimitedFinishing trades
What happens if KMJ 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 04542915
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 September 2002 (24 years ago)
- Registered office
- 31 York Avenue, Droitwich, Worcestershire, WR9 7DQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 24 September 2025
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 Droitwich
Other active plumbing and heating companies registered in Droitwich.
- Martin's Plumbing and Heating Solutions Ltd2020
- Olby Mechanical Services Ltd.2022
- Rowlands Plumbing & Heating Limited2018
- Roy's Commercial Heating Services Limited2022
- Russ Plumbing Ltd2003
- Spa Gas Limited1998
- Stephen Wakeman Gas Plumbing and Heating Services Ltd2019
- Weldons Building Maintenance Ltd2003
All plumbing and heating companies in Droitwich · All trades in Droitwich · Plumbers and heating engineers across the UK
Frequently asked questions
When are KMJ Ventilation Limited's accounts due?
KMJ Ventilation Limited's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is KMJ Ventilation Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is KMJ Ventilation Limited still trading?
KMJ 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 KMJ Ventilation Limited do?
KMJ Ventilation Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is KMJ Ventilation Limited?
KMJ Ventilation Limited was incorporated on 24 September 2002, 24 years ago.
What is the penalty if KMJ 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 KMJ 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.