- Companies
- Plumbers and heating engineers
- Cardiff
- Cosywarm Heating and Plumbing Limited
Cosywarm Heating and Plumbing Limited
- Company number
- 07833552
- Incorporated
- 3 Nov 201114 years trading
- Registered office
- 87 Whitchurch Road, Cardiff, CF14 3JP
- Nature of business
- Plumbing, heat and air-conditioning installation
Cosywarm Heating and Plumbing Limited is a 14-year-old private limited company registered in Cardiff, company number 07833552, one of 170 plumbing and heating companies in Cardiff. 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 up £379 (+25.5%) on the year before, to £1,863.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £111K against £115K owed within a year: 1.0 times cover.
- 4 employees on average, down from 5 the year before.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1,863 | £21K | £111K | £115K | 4 |
| 31 Mar 2024 | £1,484 | £24K | £129K | £129K | 5 |
| 31 Mar 2023 | £1,093 | £27K | £128K | £125K | 5 |
| 31 Mar 2022 | £1,117 | £55K | £129K | £124K | 5 |
| 31 Mar 2021 | £1,619 | £23K | £102K | £90K | 7 |
| 31 Mar 2020 | £1,452 | £35K | £72K | £74K | 8 |
| 31 Mar 2019 | £1,386 | £32K | £65K | £76K | 7 |
| 31 Mar 2018 | £8,551 | £31K | £63K | £62K | 6 |
Where Cosywarm Heating and Plumbing Limited is registered
The registered office is in Cardiff (CF14), in the Cardiff local authority area, Wales. Show CF14 3JP on a map.
Other trade companies in CF14
- Velren Group LtdProperty developers
- Premierroofcare LtdRoofers
- JLG Groundworks LtdCleaning companies
- Tidyvibz LtdCleaning companies
- Ayyappa MTD LtdBuilders
- KM Phoenix Pond, Garden & General Maintenance LtdLandscapers and gardeners
- Eco Green Property Service LtdFinishing trades
- S and J Accident Repairs LtdPainters and decorators
Also registered at this address
12 other companies use the same registered office as Cosywarm Heating and Plumbing Limited.
- Cosywarm Servicing LimitedPlumbers and heating engineers
- D Ivins Roofing LimitedRoofers
- Heat Elite Cardiff LtdPlumbers and heating engineers
- Isgrove Heating LimitedPlumbers and heating engineers
- Jennings Weston and Bricknell LtdCivil engineering
- Paolo Cataldo LimitedJoiners and carpenters
- Performance & Engineering LimitedMechanics and garages
- Point-IT-Right LtdSpecialist contractors
- Prestigious Property Solutions LimitedCleaning companies
- SD Building Services Cardiff LimitedSpecialist contractors
- Vedmore Electrical Solutions LtdMachinery repair and installation
- Westrich Tiling LtdFloor and wall tilers
What happens if Cosywarm Heating and Plumbing 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
- 07833552
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 November 2011 (14 years ago)
- Registered office
- 87 Whitchurch Road, Cardiff, CF14 3JP
- 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
- 3 November 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 Cardiff
Other active plumbing and heating companies registered in Cardiff.
- Cosywarm Servicing Limited2026
- Decorative Heating Limited2003
- Desk Pure Filt Limited2025
- DJ Miller Plumbing Limited2019
- DWR Plumbing Ltd2026
- E & A Heating and Plumbing Limited2015
- E&O Heating Solutions Ltd2024
- Eco Energy Scheme Ltd2024
All plumbing and heating companies in Cardiff · All trades in Cardiff · Plumbers and heating engineers across the UK
Frequently asked questions
When are Cosywarm Heating and Plumbing Limited's accounts due?
Cosywarm Heating and Plumbing 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 Cosywarm Heating and Plumbing 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 Cosywarm Heating and Plumbing Limited still trading?
Cosywarm Heating and Plumbing 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 Cosywarm Heating and Plumbing Limited do?
Cosywarm Heating and Plumbing Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Cosywarm Heating and Plumbing Limited?
Cosywarm Heating and Plumbing Limited was incorporated on 3 November 2011, 14 years ago.
What is the penalty if Cosywarm Heating and Plumbing 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 Cosywarm Heating and Plumbing 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.