- Companies
- Plumbers and heating engineers
- Cardiff
- Celtic Cooling and Heating Limited
Celtic Cooling and Heating Limited
- Company number
- 04956373
- Incorporated
- 7 Nov 200322 years trading
- Registered office
- 3 Hill Rise, Llanedeyrn, Cardiff, CF23 6UH
- Nature of business
- Plumbing, heat and air-conditioning installation
Celtic Cooling and Heating Limited is a 22-year-old private limited company registered in Cardiff, company number 04956373, one of 170 plumbing and heating companies in Cardiff. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
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 £3,226 (+72.6%) on the year before, to £7,672.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £67K against £64K owed within a year: 1.1 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 7 years, 2015 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £7,672 | £23K | £67K | £64K | 2 |
| 31 Jan 2025 | £4,446 | £48K | £106K | £107K | 1 |
| 31 Jan 2024 | -£5,285 | £18K | £74K | £84K | 3 |
| 31 Jan 2023 | -£7,106 | £15K | £96K | £110K | 3 |
| 31 Jan 2022 | -£8,305 | £15K | £70K | £87K | 3 |
| 31 Jan 2016 | £29K | £9,327 | £87K | £67K | |
| 31 Jan 2015 | £36K | £53K | £130K | £102K |
Where Celtic Cooling and Heating Limited is registered
The registered office is in Cardiff (CF23), in the Cardiff local authority area, Wales. Show CF23 6UH on a map.
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- 1ST Choice Accident Repair Centre (Yeovil) LtdMechanics and garages
- Wide Transport LtdMotor traders
- Ace Windscreens LtdMechanics and garages
- Lex Roofing Solutions LtdRoofers
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What happens if Celtic Cooling and 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 04956373
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 November 2003 (22 years ago)
- Registered office
- 3 Hill Rise, Llanedeyrn, Cardiff, CF23 6UH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 7 November 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
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.
- Change My Boiler Ltd2021
- CJ Heating & Renewables Limited2025
- Climate Control Cardiff Ltd2026
- Climate Control Systems Ltd2026
- Climate Engineers Limited2018
- Cole Air Conditioning Services Ltd2024
- Collingwood Plumbing Ltd2026
- Cookmech Ltd2024
All plumbing and heating companies in Cardiff · All trades in Cardiff · Plumbers and heating engineers across the UK
Frequently asked questions
When are Celtic Cooling and Heating Limited's accounts due?
Celtic Cooling and Heating Limited's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Celtic Cooling and Heating Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Celtic Cooling and Heating Limited still trading?
Celtic Cooling and 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 Celtic Cooling and Heating Limited do?
Celtic Cooling and Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Celtic Cooling and Heating Limited?
Celtic Cooling and Heating Limited was incorporated on 7 November 2003, 22 years ago.
What is the penalty if Celtic Cooling and 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 Celtic Cooling and 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.