C Plumb Ltd
- Company number
- 05660655
- Incorporated
- 21 Dec 200520 years trading
- Registered office
- C/O Bright Partnership, 26 Edward Court, Altrincham, WA14 5GL
- Nature of business
- Plumbing, heat and air-conditioning installation
C Plumb Ltd is a 20-year-old private limited company registered in Altrincham, company number 05660655, one of 29 plumbing and heating companies in Altrincham. 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.
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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 £113K (-24.8%) on the year before, to £343K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £855K against £618K owed within a year: 1.4 times cover.
- 23 employees on average, down from 27 the year before.
- 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £343K | £81K | £855K | £618K | 23 |
| 31 Mar 2024 | £457K | £274K | £1.1M | £715K | 27 |
| 31 Mar 2023 | £266K | £130K | £1M | £841K | 30 |
| 31 Mar 2022 | £375K | £228K | £1.1M | £844K | 30 |
| 31 Mar 2021 | £629K | £471K | £1.3M | £687K | 30 |
| 31 Mar 2020 | £771K | £180K | £1.6M | £833K | 30 |
| 31 Mar 2019 | £583K | £5,180 | £1.3M | £778K | 33 |
| 31 Mar 2018 | £561K | £42K | £1.1M | £573K | 0 |
| 31 Mar 2017 | £500K | £61K | £857K | £414K | 30 |
| 31 Mar 2016 | £445K | £188K | £853K | £464K |
Where C Plumb Ltd is registered
The registered office is in Altrincham (WA14), in the Trafford local authority area, North West. Show WA14 5GL on a map.
Other trade companies in WA14
- Reliance Roofing Contractors LimitedRoofers
- Falcon SPV 1 LimitedProperty developers
- Bennett Home Services LtdRoofers
- 21 Build LimitedProperty developers
- Mrjackson Construction LtdBuilders
- Jak Steel Fabrication LimitedSpecialist contractors
- Imperium Business Group LtdProperty developers
- Central Building Solutions (NW) LtdBuilders
Also registered at this address
3 other companies use the same registered office as C Plumb Ltd.
- A & G Garages LimitedMechanics and garages
- Lodge Service Station LimitedMechanics and garages
- P. W. Gannon Building LimitedProperty developers
What happens if C Plumb 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 House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 05660655
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 December 2005 (20 years ago)
- Registered office
- C/O Bright Partnership, 26 Edward Court, Altrincham, WA14 5GL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 10 December 2025
- Previous names
- Castile & Jackson Plumbing and Heating Limited (until 9 Sep 2008)
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 Altrincham
Other active plumbing and heating companies registered in Altrincham.
- DB Heating and Gas Limited2022
- DRD Cooling Ltd2014
- E W Design & Build Limited2023
- Eficion Ltd2024
- Henderson Heating Ltd2025
- JB Gas & Plumbing Ltd2021
- KFP Energy Ltd2025
- L C Gregory Property Maintenance Ltd2025
All plumbing and heating companies in Altrincham · All trades in Altrincham · Plumbers and heating engineers across the UK
Frequently asked questions
When are C Plumb Ltd's accounts due?
C Plumb Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is C Plumb 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 C Plumb Ltd still trading?
C Plumb 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 C Plumb Ltd do?
C Plumb Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is C Plumb Ltd?
C Plumb Ltd was incorporated on 21 December 2005, 20 years ago.
What is the penalty if C Plumb 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 C Plumb 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.