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  4. Air Source Cambridge Limited

Air Source Cambridge Limited

ActiveMicro-entity accountsPlumbers and heating engineersCambridge
Company number
15156960
Incorporated
22 Sep 20233 years trading
Registered office
38 Sheppard Way, Teversham, Cambridge, Cambridgeshire, CB1 9AX
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
79 days
31 Dec 2026
Checked with Companies House 12 Oct 2026

Air Source Cambridge Limited is a 3-year-old private limited company registered in Cambridge, company number 15156960, one of 105 plumbing and heating companies in Cambridge. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.

Key dates

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

Accounts due
31 Dec 2026
in 79 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 169 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 80 days
9 months and 1 day after the period end
Confirmation statement
5 Oct 2027
in 357 days
Last made up to 21 Sep 2026

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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 £3,428 on the year before, to £3,528.
  • Current assets of £6,254 against £1,550 owed within a year: 4.0 times cover.
  • 2 employees on average during the year.
  • Balance sheets on record for 2 years, 2024 to 2025.

Net assets by year

Net assets at each year end, 2024 to 2025£0£2,00030 September 2024: net assets £100£100202431 March 2025: net assets £3,528£3,5282025
Net assets at each year end, 2024 to 2025£0£2,00030 September 2024: net assets £100£100202431 March 2025: net assets £3,528£3,5282025
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025£3,528£6,254£1,5502
30 Sep 2024£100£1002

Where Air Source Cambridge Limited is registered

Air Source Cambridge Limited's registered office on a map of the UK

The registered office is in Cambridge (CB1), in the South Cambridgeshire local authority area, East of England. Show CB1 9AX on a map.

Other trade companies in CB1

Also registered at this address

1 other company uses the same registered office as Air Source Cambridge Limited.

What happens if Air Source Cambridge 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 December 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2027 to 31 Jan 2027£150
1 to 3 months late1 Feb 2027 to 31 Mar 2027£375
3 to 6 months late1 Apr 2027 to 30 Jun 2027£750
More than 6 months lateFrom 1 Jul 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Apr 2027£200
3 months late30 Jun 2027another £200
6 months late30 Sep 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 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
15156960
Status
Active
Company type
Private limited company
Incorporated
22 September 2023 (3 years ago)
Registered office
38 Sheppard Way, Teversham, Cambridge, Cambridgeshire, CB1 9AX
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 March (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 March 2025
Last confirmation statement
21 September 2026

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 Cambridge

Other active plumbing and heating companies registered in Cambridge.

All plumbing and heating companies in Cambridge · All trades in Cambridge · Plumbers and heating engineers across the UK

Frequently asked questions

When are Air Source Cambridge Limited's accounts due?

Air Source Cambridge Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.

When is Air Source Cambridge Limited's CT600 due?

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

Is Air Source Cambridge Limited still trading?

Air Source Cambridge 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 Air Source Cambridge Limited do?

Air Source Cambridge Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is Air Source Cambridge Limited?

Air Source Cambridge Limited was incorporated on 22 September 2023, 3 years ago.

What is the penalty if Air Source Cambridge 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 Source Cambridge 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, 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.

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