- Companies
- Plumbers and heating engineers
- Llandeilo
- RLM Plumbing Limited
RLM Plumbing Limited
- Company number
- 04547339
- Incorporated
- 27 Sep 200224 years trading
- Registered office
- Caerlyn, Capel Isaac, Llandeilo, SA19 7TD
- Nature of business
- Plumbing, heat and air-conditioning installation
RLM Plumbing Limited is a 24-year-old private limited company registered in Llandeilo, company number 04547339, one of 11 plumbing and heating companies in Llandeilo. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £8,267 (-26.4%) on the year before, to £23K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £29K against £9,820 owed within a year: 2.9 times cover.
- 1 employee on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £23K | £28K | £29K | £9,820 | 1 |
| 30 Sep 2024 | £31K | £42K | £43K | £9,986 | 1 |
| 30 Sep 2023 | £33K | £30K | £31K | £8,441 | 1 |
| 30 Sep 2022 | £19K | £45K | £45K | £11K | 2 |
| 30 Sep 2021 | £426 | £6,381 | £7,309 | £9,534 | 2 |
| 30 Sep 2020 | £6,387 | £12K | £14K | £11K | 3 |
| 30 Sep 2019 | -£1,452 | £2,239 | £2,689 | £8,184 | 3 |
| 30 Sep 2018 | £5,109 | £2,313 | £6,098 | £6,093 | 3 |
| 30 Sep 2017 | £12K | £7,763 | £12K | £6,707 | 3 |
| 30 Sep 2016 | £11K | £552 | £6,015 | £4,188 |
Where RLM Plumbing Limited is registered
The registered office is in Llandeilo (SA19), in the Carmarthenshire local authority area, Wales. Show SA19 7TD on a map.
Other trade companies in SA19
- Wellspring Stanton Drew LtdProperty developers
- Evs Construction LimitedCivil engineering
- Required Automotive LtdMechanics and garages
- NLM Electrical LtdElectricians
- Harries Motor Company LtdMotor traders
- Hudson Builders LimitedBuilders
- KB Home Maintenance LtdBuilders
- PJH Beynon Holdings LtdCivil engineering
What happens if RLM 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 04547339
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 September 2002 (24 years ago)
- Registered office
- Caerlyn, Capel Isaac, Llandeilo, SA19 7TD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 27 September 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 Llandeilo
Other active plumbing and heating companies registered in Llandeilo.
- Shaun George (Plumbing & Heating) Limited2010
- Solar Save Renewables Limited2018
- Terry Davies Plumbing & Heating Limited2013
- Aled Lewis A'i Fab Plumbing Heating & Renewables Limited2021
- Andrew Vaughan Davies Ltd2017
- Black Mountain Fire Ltd2022
- D G Davies Ltd2015
- DK & J Roberts Limited2005
All plumbing and heating companies in Llandeilo · All trades in Llandeilo · Plumbers and heating engineers across the UK
Frequently asked questions
When are RLM Plumbing Limited's accounts due?
RLM Plumbing Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is RLM Plumbing Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is RLM Plumbing Limited still trading?
RLM Plumbing Limited is listed as active on the Companies House register (checked 12 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 RLM Plumbing Limited do?
RLM Plumbing Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is RLM Plumbing Limited?
RLM Plumbing Limited was incorporated on 27 September 2002, 24 years ago.
What is the penalty if RLM 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 RLM Plumbing Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.