- Companies
- Plumbers and heating engineers
- Cardiff
- R Thomas Plumbing and Heating Ltd
R Thomas Plumbing and Heating Ltd
- Company number
- 08185897
- Incorporated
- 21 Aug 201214 years trading
- Registered office
- 42 Mountbatten Close, Cardiff, CF23 5QH
- Nature of business
- Plumbing, heat and air-conditioning installation
R Thomas Plumbing and Heating Ltd is a 14-year-old private limited company registered in Cardiff, company number 08185897, 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 down £1,625 (-6.9%) on the year before, to £22K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £53K against £24K owed within a year: 2.2 times cover.
- 2 employees on average, down from 3 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2026 | £22K | £39K | £53K | £24K | 2 |
| 31 Aug 2025 | £24K | £37K | £56K | £30K | 3 |
| 31 Aug 2024 | £26K | £47K | £64K | £30K | 2 |
| 31 Aug 2023 | £26K | £37K | £52K | £25K | 2 |
| 31 Aug 2022 | £19K | £42K | £51K | £21K | 2 |
| 31 Aug 2021 | £11K | £40K | £70K | £24K | 2 |
| 31 Aug 2020 | £21K | £66K | £117K | £49K | 2 |
| 31 Aug 2019 | £4,638 | £9,773 | £97K | £51K | 2 |
| 31 Aug 2018 | £273 | £5,010 | £55K | £32K | 2 |
| 31 Aug 2017 | £15K | £0 | £65K | £29K | 2 |
Where R Thomas Plumbing and Heating Ltd is registered
The registered office is in Cardiff (CF23), in the Cardiff local authority area, Wales. Show CF23 5QH on a map.
Other trade companies in CF23
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- Halo Mobile Specialists LtdMechanics and garages
- 1ST Choice Accident Repair Centre (Yeovil) LtdMechanics and garages
- Wide Transport LtdMotor traders
- Ace Windscreens LtdMechanics and garages
- Lex Roofing Solutions LtdRoofers
- Taxissories LtdMotor traders
What happens if R Thomas Plumbing and Heating Ltd 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
- 08185897
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 August 2012 (14 years ago)
- Registered office
- 42 Mountbatten Close, Cardiff, CF23 5QH
- 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
- 21 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.
- R.S. Gascare Ltd2013
- Rads and Taps Ltd2018
- Raes Mechanical Ltd2025
- Raeye Emergency Plumbing Ltd2025
- Raven Plumbing & Heating Limited2022
- RB Plumb and Heat Ltd2024
- Redbrick Heating & Plumbing Ltd2024
- Regmac Air Conditioning Ltd2023
All plumbing and heating companies in Cardiff · All trades in Cardiff · Plumbers and heating engineers across the UK
Frequently asked questions
When are R Thomas Plumbing and Heating Ltd's accounts due?
R Thomas Plumbing and Heating Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is R Thomas Plumbing and Heating Ltd'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 R Thomas Plumbing and Heating Ltd still trading?
R Thomas Plumbing and Heating Ltd 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 R Thomas Plumbing and Heating Ltd do?
R Thomas Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is R Thomas Plumbing and Heating Ltd?
R Thomas Plumbing and Heating Ltd was incorporated on 21 August 2012, 14 years ago.
What is the penalty if R Thomas Plumbing and Heating Ltd 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 R Thomas Plumbing and Heating Ltd 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.