- Companies
- Plumbers and heating engineers
- Cardiff
- Penylan Heating Limited
Penylan Heating Limited
- Company number
- 06646532
- Incorporated
- 15 Jul 200818 years trading
- Registered office
- Suite 2D Building 1 Eastern Business Park, ST Mellons, Cardiff, CF3 5EA
- Nature of business
- Plumbing, heat and air-conditioning installation
Penylan Heating Limited is a 18-year-old private limited company registered in Cardiff, company number 06646532, one of 170 plumbing and heating companies in Cardiff. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £491 (+24.3%) on the year before, to £2,511.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £11K against £8,677 owed within a year: 1.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Aug 2025 | £2,511 | £9,697 | £11K | £8,677 | 0 |
| 31 Aug 2024 | £2,020 | £9,407 | £15K | £14K | 2 |
| 31 Aug 2023 | £9,881 | £26K | £28K | £19K | 2 |
| 31 Aug 2022 | £2,114 | £23K | £24K | £22K | 2 |
| 31 Aug 2021 | £142 | £24K | £25K | £26K | 2 |
| 31 Aug 2020 | £1,814 | £41K | £42K | £41K | 2 |
| 31 Aug 2019 | £20 | £8,750 | £9,008 | £9,161 | 2 |
| 31 Aug 2018 | £458 | £13K | £13K | £13K | 2 |
| 31 Aug 2017 | £220 | £19K | £19K | £20K | 2 |
| 31 Aug 2016 | £387 | £6,603 | £6,830 | £10K |
Where Penylan Heating Limited is registered
The registered office is in Cardiff (CF3), in the Cardiff local authority area, Wales. Show CF3 5EA on a map.
Other trade companies in CF3
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- Fly Tech LtdMachinery repair and installation
- Dragonfly Site Services LtdSpecialist contractors
- Arc Energy Systems LtdElectricians
- Floyd’S Consultants LtdProperty developers
- Blues Mechanical LtdInstallers
- Climate Control Cardiff LtdPlumbers and heating engineers
- Campo & Co Developments LtdBuilders
Also registered at this address
23 other companies use the same registered office as Penylan Heating Limited.
- Adl Detailing and Logistics LimitedMechanics and garages
- Atamate Solutions LtdSpecialist contractors
- Citywide Auto Centres LimitedMechanics and garages
- Copper Kite Developments 2.0 LimitedProperty developers
- Davies Brothers (Holdings) LimitedFinishing trades
- Drojan Commercial Window Cleaning LimitedCleaning companies
- Ep Motor Sales LimitedMotor traders
- Hier Estates LimitedBuilders
- Humblebrick LimitedBuilders
- Knott Construction Consultancy LimitedSpecialist contractors
- Leather Academy LtdRepair services
- Maintain-Ants LimitedFacilities management
- MTV Developments LimitedProperty developers
- NJP Consulting Engineers LimitedCivil engineering
- Probert & Mumford LimitedFinishing trades
- Reg Construction LimitedBuilders
- Richard Sutton LimitedSpecialist contractors
- Sarjan LimitedProperty developers
- Seel Auctions LtdProperty developers
- Spire Renewables LimitedPlumbers and heating engineers
- Start Bay Developments (Prideaux) LimitedProperty developers
- Start Bay Developments LimitedProperty developers
- Trade Right Cars (Cardiff) LimitedMotor traders
What happens if Penylan 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 06646532
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 July 2008 (18 years ago)
- Registered office
- Suite 2D Building 1 Eastern Business Park, ST Mellons, Cardiff, CF3 5EA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 22 August 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 Cardiff
Other active plumbing and heating companies registered in Cardiff.
- Pipenest Plumbing Ltd2025
- Piperite Plumbing Ltd2014
- Platinum Mechanical & Plumbing Services Limited2019
- Plumbfixer Ltd2023
- Plush Heating and Plumbing Ltd2023
- PLÖCHL Ltd2023
- Pro-Gas South Wales Limited2015
- Quartz Plumbing and Heating Ltd2022
All plumbing and heating companies in Cardiff · All trades in Cardiff · Plumbers and heating engineers across the UK
Frequently asked questions
When are Penylan Heating Limited's accounts due?
Penylan Heating Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Penylan Heating Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Penylan Heating Limited still trading?
Penylan 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 Penylan Heating Limited do?
Penylan Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Penylan Heating Limited?
Penylan Heating Limited was incorporated on 15 July 2008, 18 years ago.
What is the penalty if Penylan 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 Penylan 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.