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  4. CPN Plumbing Ltd

CPN Plumbing Ltd

ActiveUnaudited abridged accountsPlumbers and heating engineersCanterbury
Company number
10947942
Incorporated
6 Sep 20179 years trading
Registered office
ST Augustine House & Hall, Rhodaus Town, Canterbury, CT1 2YA
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
79 days
31 Dec 2026
Net assets
-£68K▼
-419.7% on the year before
Cash at bank
£2,029▼
At 31 Mar 2025
Employees
1
Average during the year
Checked with Companies House 13 Oct 2026

CPN Plumbing Ltd is a 9-year-old private limited company registered in Canterbury, company number 10947942, one of 40 plumbing and heating companies in Canterbury. 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
19 Sep 2026
Overdue by 24 days
Last made up to 5 Sep 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 £55K (-419.7%) on the year before, to -£68K.
  • Net assets rose in 2 of 7 year-on-year comparisons on record.
  • Current assets of £90K against £166K owed within a year: 0.5 times cover.
  • 1 employee on average during the year.
  • Balance sheets on record for 8 years, 2018 to 2025.

Net assets by year

Net assets at each year end, 2018 to 2025-£50K£031 March 2018: net assets £10K£10K201831 March 2019: net assets £10K£10K201931 March 2020: net assets £26K£26K202031 March 2021: net assets -£4,313-£4,313202131 March 2022: net assets -£5,420-£5,420202231 March 2023: net assets £20K£20K202331 March 2024: net assets -£13K-£13K202431 March 2025: net assets -£68K-£68K2025
Net assets at each year end, 2018 to 2025-£50K£031 March 2018: net assets £10K£10K'1831 March 2019: net assets £10K£10K'1931 March 2020: net assets £26K£26K'2031 March 2021: net assets -£4,313-£4,313'2131 March 2022: net assets -£5,420-£5,420'2231 March 2023: net assets £20K£20K'2331 March 2024: net assets -£13K-£13K'2431 March 2025: net assets -£68K-£68K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025-£68K£2,029£90K£166K1
31 Mar 2024-£13K£2,528£112K£116K1
31 Mar 2023£20K£32K£170K£130K1
31 Mar 2022-£5,420£108£136K£112K1
31 Mar 2021-£4,313£36K£129K£141K1
31 Mar 2020£26K£24K£104K£86K1
31 Mar 2019£10K£1,804£17K£14K2
31 Mar 2018£10K£5,747£10K£8,2782

Who runs and owns CPN Plumbing Ltd

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officers (2)

NameRoleAppointed
C*** N***DirectorSep 2017
A*** S***SecretaryNov 2017
2 former officers
NameRoleAppointedLeft
Spain Brothers & Co LimitedSecretary (company)Sep 2017Nov 2017
A*** S***DirectorMar 2018Nov 2019

People with significant control (2)

Individual · since Jul 2018
A*** S***
Owns 25% to 50% of the shares
Holds 25% to 50% of the votes
Individual · since Sep 2017
C*** N***
Owns 50% to 75% of the shares
Holds 50% to 75% of the votes

Where CPN Plumbing Ltd is registered

CPN Plumbing Ltd's registered office on a map of the UK

The registered office is in Canterbury (CT1), in the Canterbury local authority area, South East. Show CT1 2YA on a map.

Other trade companies in CT1

What happens if CPN Plumbing 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 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
10947942
Status
Active
Company type
Private limited company
Incorporated
6 September 2017 (9 years ago)
Registered office
ST Augustine House & Hall, Rhodaus Town, Canterbury, CT1 2YA
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 March (accounting reference date)
Accounts type
Unaudited abridged
Last accounts made up to
31 March 2025
Last confirmation statement
5 September 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.

Similar companies in Canterbury

Other active plumbing and heating companies registered in Canterbury.

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

Frequently asked questions

When are CPN Plumbing Ltd's accounts due?

CPN Plumbing Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.

When is CPN Plumbing Ltd'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 CPN Plumbing Ltd still trading?

CPN Plumbing Ltd is listed as active on the Companies House register (checked 13 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 CPN Plumbing Ltd do?

CPN Plumbing Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is CPN Plumbing Ltd?

CPN Plumbing Ltd was incorporated on 6 September 2017, 9 years ago.

Who runs CPN Plumbing Ltd?

CPN Plumbing Ltd has 1 active director, the longest-serving appointed in Sep 2017. Their names and service addresses are on the Companies House register.

Who owns CPN Plumbing Ltd?

2 people or companies have significant control of CPN Plumbing Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 50% to 75% of the shares).

What is the penalty if CPN Plumbing 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 CPN Plumbing Ltd 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 13 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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