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  4. C.I Airflow Limited

C.I Airflow Limited

ActiveMicro-entity accountsPlumbers and heating engineersLondon
Company number
12964463
Incorporated
21 Oct 20205 years trading
Registered office
347A-347B Prince Regent Lane, London, E16 3JL
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
292 days
31 Jul 2027
Net assets
£19K▼
-14.4% on the year before
Employees
2
Average during the year
From the Companies House register, 1 Oct 2026

C.I Airflow Limited is a 5-year-old private limited company registered in London, company number 12964463, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Jul 2027
in 292 days
For the period to 31 Oct 2026
CT600 due
31 Oct 2027
in 384 days
Period 1 Nov 2025 to 31 Oct 2026
Corporation tax payment
1 Aug 2027
in 293 days
9 months and 1 day after the period end
Confirmation statement
3 Nov 2026
in 22 days
Last made up to 20 Oct 2025

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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 down £683 (-3.4%) on the year before, to £19K.
  • Net assets rose in 1 of 4 year-on-year comparisons on record.
  • Current assets of £20K against £597 owed within a year: more than 10 times cover.
  • 2 employees on average, up from 1 the year before.
  • Balance sheets on record for 5 years, 2021 to 2025.

Net assets by year

Net assets at each year end, 2021 to 2025£0£20K31 October 2021: net assets £34K£34K202131 October 2022: net assets £32K£32K202231 October 2023: net assets £8,056£8,056202331 October 2024: net assets £20K£20K202431 October 2025: net assets £19K£19K2025
Net assets at each year end, 2021 to 2025£0£20K31 October 2021: net assets £34K£34K202131 October 2022: net assets £32K£32K202231 October 2023: net assets £8,056£8,056202331 October 2024: net assets £20K£20K202431 October 2025: net assets £19K£19K2025
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Oct 2025£19K£20K£5972
31 Oct 2024£20K£20K£01
31 Oct 2023£8,056£14K£8911
31 Oct 2022£32K£37K£4,7922
31 Oct 2021£34K£42K1

Where C.I Airflow Limited is registered

C.I Airflow Limited's registered office on a map of the UK

The registered office is in London (E16), in the Newham local authority area, London. Show E16 3JL on a map.

Other trade companies in E16

What happens if C.I Airflow 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 July 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Aug 2027 to 31 Aug 2027£150
1 to 3 months late1 Sep 2027 to 31 Oct 2027£375
3 to 6 months late1 Nov 2027 to 31 Jan 2028£750
More than 6 months lateFrom 1 Feb 2028£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Nov 2027£200
3 months late31 Jan 2028another £200
6 months late30 Apr 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Oct 2028another 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
12964463
Status
Active
Company type
Private limited company
Incorporated
21 October 2020 (5 years ago)
Registered office
347A-347B Prince Regent Lane, London, E16 3JL
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 October (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 October 2025
Last confirmation statement
20 October 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.

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Other active plumbing and heating companies registered in London.

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Frequently asked questions

When are C.I Airflow Limited's accounts due?

C.I Airflow Limited's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.

When is C.I Airflow Limited's CT600 due?

The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.

Is C.I Airflow Limited still trading?

C.I Airflow 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 C.I Airflow Limited do?

C.I Airflow Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is C.I Airflow Limited?

C.I Airflow Limited was incorporated on 21 October 2020, 5 years ago.

What is the penalty if C.I Airflow 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 C.I Airflow Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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