- Companies
- Specialist contractors
- Redruth
- South West Ventilation Ltd
South West Ventilation Ltd
- Company number
- 08606564
- Incorporated
- 11 Jul 201313 years trading
- Registered office
- Holmewood United Road, Carharrack, Redruth, TR16 5QY
- Nature of business
- Other specialised construction activities n.e.c.
South West Ventilation Ltd is a 13-year-old private limited company registered in Redruth, company number 08606564, one of 16 specialist construction companies in Redruth. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 30 July 2026 is due at HMRC on 30 July 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 £73K (+89.4%) on the year before, to £155K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £125K against £288K owed within a year: 0.4 times cover.
- 9 employees 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 Jul 2025 | £155K | £125K | £288K | 9 | |
| 30 Jul 2024 | £82K | £120K | £197K | 9 | |
| 30 Jul 2023 | £12K | £77K | £109K | 7 | |
| 30 Jul 2022 | £29K | £91K | £90K | 7 | |
| 30 Jul 2021 | £66K | £80K | £36K | 2 | |
| 30 Jul 2020 | £42K | £81K | £48K | 3 | |
| 31 Jul 2019 | £22K | £45K | £30K | ||
| 31 Jul 2018 | £24K | £40K | £25K | ||
| 31 Jul 2017 | £29K | £70K | £52K | ||
| 31 Jul 2016 | £1,419 | £27K | £33K |
Where South West Ventilation Ltd is registered
The registered office is in Redruth (TR16), in the Cornwall local authority area, South West. Show TR16 5QY on a map.
Other trade companies in TR16
- Treads Tyres Mobile Services LtdMechanics and garages
- Cornwall Pellet Stoves LtdPlumbers and heating engineers
- RS Rail LtdSpecialist contractors
- Cornish Custom Homes LtdProperty developers
- Pressure Services LimitedMachinery repair and installation
- PM Classic Cars LimitedMechanics and garages
- Mini Machines Cornwall LtdProperty developers
- Szelesi Property Holdings LtdProperty developers
Also registered at this address
2 other companies use the same registered office as South West Ventilation Ltd.
- Quillet Construction LimitedBuilders
- Roben Squared LimitedProperty developers
What happens if South West Ventilation 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Jul 2027 | £200 |
| 3 months late | 30 Oct 2027 | another £200 |
| 6 months late | 30 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jul 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
- 08606564
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 July 2013 (13 years ago)
- Registered office
- Holmewood United Road, Carharrack, Redruth, TR16 5QY
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 July 2025
- Last confirmation statement
- 11 July 2026
- Previous names
- South West Ventiation Ltd (until 30 Jul 2013)
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Redruth
Other active specialist construction companies registered in Redruth.
- 4D Construction Management Services Ltd2012
- Arjcompany Ltd2025
- Carrick Consultancy Ltd2023
- Cornwall Renovation Specialists Limited2007
- David Reynolds Building Preservation Limited2016
- DN Manship Construction Limited2026
- Frewfix Ltd2010
- Hart's Plant Hire Limited2013
All specialist construction companies in Redruth · All trades in Redruth · Specialist contractors across the UK
Frequently asked questions
When are South West Ventilation Ltd's accounts due?
South West Ventilation Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 30 July 2026.
When is South West Ventilation Ltd's CT600 due?
The CT600 for the period to 30 July 2026 is due at HMRC by 30 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is South West Ventilation Ltd still trading?
South West Ventilation 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 South West Ventilation Ltd do?
South West Ventilation Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is South West Ventilation Ltd?
South West Ventilation Ltd was incorporated on 11 July 2013, 13 years ago.
What is the penalty if South West Ventilation 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 South West Ventilation 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.