- Companies
- Plumbers and heating engineers
- Merthyr Tydfil
- CKM Plumbing & Heating Services Limited
CKM Plumbing & Heating Services Limited
- Company number
- 15473417
- Incorporated
- 7 Feb 20242 years trading
- Registered office
- 2 Berry Square, Dowlais, Merthyr Tydfil, CF48 3AL
- Nature of business
- Plumbing, heat and air-conditioning installation
CKM Plumbing & Heating Services Limited is a 2-year-old private limited company registered in Merthyr Tydfil, company number 15473417, one of 21 plumbing and heating companies in Merthyr Tydfil. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for CKM Plumbing & Heating Services LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £12K (-97.9%) on the year before, to £261.
- Current assets of £29K against £35K owed within a year: 0.8 times cover.
- 2 employees on average, up from 0 the year before.
- Balance sheets on record for 2 years, 2025 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £261 | £29K | £35K | 2 | |
| 31 Mar 2025 | £12K | £32K | £26K | 0 |
Where CKM Plumbing & Heating Services Limited is registered
The registered office is in Merthyr Tydfil (CF48), in the Merthyr Tydfil local authority area, Wales. Show CF48 3AL on a map.
Other trade companies in CF48
- Valley Roofing Building & Carpentry LimitedRoofers
- Ajl Rail/Civil Engineering LtdCivil engineering
- M&K Valeting LtdCleaning companies
- Mdgroundworks LtdGroundworks and demolition
- Craig Lloyd Groundworks LtdCivil engineering
- Noarc Electrical LtdElectricians
- Elt Brickwork LimitedBuilders
- JBH Decorating LimitedPainters and decorators
What happens if CKM Plumbing & Heating Services 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 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
- 15473417
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 February 2024 (2 years ago)
- Registered office
- 2 Berry Square, Dowlais, Merthyr Tydfil, CF48 3AL
- 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
- 31 January 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 Merthyr Tydfil
Other active plumbing and heating companies registered in Merthyr Tydfil.
- Dowlais Heating Ltd2002
- Enhanced Heating and Plumbing Ltd2025
- First Degree Air Conditioning Services Ltd2025
- Flow Taenellwyr Tan Ltd2017
- G&S Heating Services Limited2014
- Galaxy Plumbing and Property Maintenance Ltd2016
- Heat Vision Ltd2024
- Heatflo Ltd2026
All plumbing and heating companies in Merthyr Tydfil · All trades in Merthyr Tydfil · Plumbers and heating engineers across the UK
Frequently asked questions
When are CKM Plumbing & Heating Services Limited's accounts due?
CKM Plumbing & Heating Services 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 CKM Plumbing & Heating Services 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 CKM Plumbing & Heating Services Limited still trading?
CKM Plumbing & Heating Services 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 CKM Plumbing & Heating Services Limited do?
CKM Plumbing & Heating Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is CKM Plumbing & Heating Services Limited?
CKM Plumbing & Heating Services Limited was incorporated on 7 February 2024, 2 years ago.
What is the penalty if CKM Plumbing & Heating Services 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 CKM Plumbing & Heating Services 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.