- Companies
- Finishing trades
- London
- Air Flow Ductwork Limited
Air Flow Ductwork Limited
- Company number
- 12253387
- Incorporated
- 10 Oct 20197 years trading
- Registered office
- Flat 3, 29 Inglis Road, London, W5 3RL
- Nature of business
- Other building completion and finishing
Air Flow Ductwork Limited is a 7-year-old private limited company registered in London, company number 12253387, one of 3,947 building finishing companies in London. 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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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 £160K (+164%) on the year before, to £258K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £620K against £370K owed within a year: 1.7 times cover.
- 1 employee on average during the year.
- 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 Sep 2025 | £258K | £612K | £620K | £370K | 1 |
| 30 Sep 2024 | £98K | £427K | £438K | £340K | 1 |
| 30 Sep 2023 | £64K | £326K | £342K | £279K | 1 |
| 30 Sep 2022 | -£48K | £63K | £78K | £126K | 1 |
| 30 Sep 2021 | £154 | £82K | £100K | £99K | 2 |
| 30 Sep 2020 | £54K | £202K | £216K | £162K | 1 |
Where Air Flow Ductwork Limited is registered
The registered office is in London (W5), in the Ealing local authority area, London. Show W5 3RL on a map.
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What happens if Air Flow Ductwork 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
- 12253387
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 October 2019 (7 years ago)
- Registered office
- Flat 3, 29 Inglis Road, London, W5 3RL
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 9 October 2025
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- Aircomm Services Ltd2002
- Aj Home and Garden Ltd2013
- Aja (London) Building Services Ltd2019
- Aja Service Groups Ltd2018
- Ajile Services Ltd2025
- Ajwr Ltd2025
- Ak Construction & Maintenance Ltd2010
- Ak Construction London Ltd2022
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Air Flow Ductwork Limited's accounts due?
Air Flow Ductwork Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Air Flow Ductwork 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 Air Flow Ductwork Limited still trading?
Air Flow Ductwork 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 Air Flow Ductwork Limited do?
Air Flow Ductwork Limited is registered under Other building completion and finishing (SIC 43390).
How old is Air Flow Ductwork Limited?
Air Flow Ductwork Limited was incorporated on 10 October 2019, 7 years ago.
What is the penalty if Air Flow Ductwork 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 Air Flow Ductwork 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.