- Companies
- Machinery repair and installation
- Portsmouth
- Delta Ventilation Limited
Delta Ventilation Limited
- Company number
- 03047695
- Incorporated
- 19 Apr 199531 years trading
- Registered office
- Unit 2.3 Central Point, Kirpal Road, Portsmouth, Hampshire, PO3 6FH
- Nature of business
- Installation of industrial machinery and equipment
Delta Ventilation Limited is a 31-year-old private limited company registered in Portsmouth, company number 03047695, one of 55 machinery repair and installation companies in Portsmouth. Its next accounts are due at Companies House on 29 March 2027, and the CT600 for the period to 29 June 2026 is due at HMRC on 29 June 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 £617K (+25.7%) on the year before, to £3M.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £4.3M against £1.4M owed within a year: 3.1 times cover.
- 27 employees on average, up from 26 the year before.
- 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 |
|---|---|---|---|---|---|
| 29 Jun 2025 | £3M | £1.1M | £4.3M | £1.4M | 27 |
| 29 Jun 2024 | £2.4M | £1.2M | £3.5M | £1.2M | 26 |
| 30 Jun 2023 | £4.3M | £2.2M | £4.4M | 15 | |
| 30 Jun 2022 | £3.9M | £2M | £3.9M | £51K | 15 |
| 30 Jun 2021 | £3.9M | £2.4M | £4.2M | £294K | 15 |
| 30 Jun 2020 | £3.2M | £2M | £3.4M | £175K | 15 |
| 30 Jun 2019 | £2.9M | £1.3M | £3M | £194K | |
| 30 Jun 2018 | £2.6M | £1.1M | £2.7M | £146K | |
| 30 Jun 2017 | £2.5M | £2.6M | £83K | ||
| 30 Jun 2016 | £2.4M | £1.1M | £2.5M | £138K |
Public contracts won
Delta Ventilation Limited has 2 public sector contract awards on record; the ones with their own published value total £50K, from 2024 to 2025. Source: Contracts Finder and Find a Tender award notices.
Awards by year
Main buyers
- Gov Facility Services Ltd1 award
- Gov Facility Services Limited1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Gov Facility Services Ltd | Smoke Vent Works | £27K | 3 Oct 2025 |
| Gov Facility Services Limited | Smoke Control repair/refurbishment | £23K | 19 Apr 2024 |
Where Delta Ventilation Limited is registered
The registered office is in Portsmouth (PO3), in the Portsmouth local authority area, South East. Show PO3 6FH on a map.
Other trade companies in PO3
- GJM Construction LtdBuilders
- Al Fajar Building LimitedFinishing trades
- New Milton Decor LtdPainters and decorators
- Portsmouth Autos LtdMechanics and garages
- Henley Roofing Group LimitedInstallers
- I’M Covered 365 Ac LtdPlumbers and heating engineers
- Scope Bodyshop LtdMechanics and garages
- GP Technical LtdSpecialist contractors
What happens if Delta 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 29 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Mar 2027 to 29 Apr 2027 | £150 |
| 1 to 3 months late | 30 Apr 2027 to 29 Jun 2027 | £375 |
| 3 to 6 months late | 30 Jun 2027 to 29 Sep 2027 | £750 |
| More than 6 months late | From 30 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Jun 2027 | £200 |
| 3 months late | 29 Sep 2027 | another £200 |
| 6 months late | 29 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Jun 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
- 03047695
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 April 1995 (31 years ago)
- Registered office
- Unit 2.3 Central Point, Kirpal Road, Portsmouth, Hampshire, PO3 6FH
- Nature of business
- Installation of industrial machinery and equipment (SIC 33200)
- Year end
- 29 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 29 June 2025
- Last confirmation statement
- 28 February 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Portsmouth
Other active machinery repair and installation companies registered in Portsmouth.
- Diverse Marine Limited2018
- Duchy Sky Limited2024
- Express Turbos Limited2012
- Gentec Services Ltd2007
- Goodacre Boat Repairs and Refits Ltd2006
- HB Hydraulics Limited2019
- I.M.E Group Limited2017
- I.M.E Repair Services Limited2006
All machinery repair and installation companies in Portsmouth · All trades in Portsmouth · Machinery repair and installation across the UK
Frequently asked questions
When are Delta Ventilation Limited's accounts due?
Delta Ventilation Limited's next accounts are due at Companies House by 29 March 2027 (in 167 days), covering the period to 29 June 2026.
When is Delta Ventilation Limited's CT600 due?
The CT600 for the period to 29 June 2026 is due at HMRC by 29 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 March 2027.
Is Delta Ventilation Limited still trading?
Delta Ventilation 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 Delta Ventilation Limited do?
Delta Ventilation Limited is registered under Installation of industrial machinery and equipment (SIC 33200).
How old is Delta Ventilation Limited?
Delta Ventilation Limited was incorporated on 19 April 1995, 31 years ago.
Has Delta Ventilation Limited won public sector contracts?
Yes. Delta Ventilation Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £50K), most recently from Gov Facility Services Ltd.
What is the penalty if Delta 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 Delta Ventilation 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.