- Companies
- Plumbers and heating engineers
- High Wycombe
- CDK Plumbing & Heating Limited
CDK Plumbing & Heating Limited
- Company number
- 12317386
- Incorporated
- 15 Nov 20196 years trading
- Registered office
- 15 Boundary Place, Wooburn Green, High Wycombe, HP10 0DR
- Nature of business
- Plumbing, heat and air-conditioning installation
CDK Plumbing & Heating Limited is a 6-year-old private limited company registered in High Wycombe, company number 12317386, one of 120 plumbing and heating companies in High Wycombe. Its next accounts are due at Companies House on 31 October 2026, and its first CT600 is due at HMRC on 31 October 2026.
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 £310 (-76%) on the year before, to £98.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £18K against £1,740 owed within a year: more than 10 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2020 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2024 | £98 | £18K | £1,740 | 1 | |
| 31 Oct 2023 | £408 | £18K | 1 | ||
| 31 Oct 2022 | £100 | £15K | 1 | ||
| 31 Oct 2021 | £100 | £2,123 | £2,023 | 1 | |
| 31 Oct 2020 | £100 | £16K | £16K | 1 |
Where CDK Plumbing & Heating Limited is registered
The registered office is in High Wycombe (HP10), in the Buckinghamshire local authority area, South East. Show HP10 0DR on a map.
Other trade companies in HP10
- Range Fit Co LtdJoiners and carpenters
- Ajm Autos LimitedMotor traders
- Woodys LimitedJoiners and carpenters
- Ah Stottor Building Services LtdFinishing trades
- Bradley Evolve LimitedProperty developers
- The Warmth and Water Group LtdPlumbers and heating engineers
- Epds Home Improvement LtdBuilders
- Cleancoat Property Services LtdBuilders
What happens if CDK Plumbing & Heating 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 12317386
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 November 2019 (6 years ago)
- Registered office
- 15 Boundary Place, Wooburn Green, High Wycombe, HP10 0DR
- 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 2024
- Last confirmation statement
- 29 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.
Similar companies in High Wycombe
Other active plumbing and heating companies registered in High Wycombe.
- Chiltern Heating and Gas Services Ltd2015
- Chilterns Air Conditioning Ltd2026
- CJS Air Conditioning Ltd2020
- Corcorans Heating and Plumbing Ltd2025
- CW Gas & Heating Services Ltd2021
- David Bray Plumbing & Heating Limited2011
- E.A.C.Airconditioning Ltd2018
- Emc Plumbing and Heating Ltd2023
All plumbing and heating companies in High Wycombe · All trades in High Wycombe · Plumbers and heating engineers across the UK
Frequently asked questions
When are CDK Plumbing & Heating Limited's accounts due?
CDK Plumbing & Heating Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is CDK Plumbing & Heating Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 October 2025, due by 31 October 2026, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is CDK Plumbing & Heating Limited still trading?
CDK Plumbing & Heating 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 CDK Plumbing & Heating Limited do?
CDK Plumbing & Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is CDK Plumbing & Heating Limited?
CDK Plumbing & Heating Limited was incorporated on 15 November 2019, 6 years ago.
What is the penalty if CDK Plumbing & Heating 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 CDK Plumbing & Heating 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.