- Companies
- Plumbers and heating engineers
- Southampton
- RJK Plumbers Ltd
RJK Plumbers Ltd
- Company number
- 14258634
- Incorporated
- 27 Jul 20224 years trading
- Registered office
- 276 Spring Road, Southampton, SO19 2NT
- Nature of business
- Plumbing, heat and air-conditioning installation
RJK Plumbers Ltd is a 4-year-old private limited company registered in Southampton, company number 14258634, one of 246 plumbing and heating companies in Southampton. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £27K (+231.1%) on the year before, to £39K.
- Current assets of £28K against £21 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £39K | £4,321 | £28K | £21 | 0 |
| 31 Jul 2024 | £12K | £1,096 | £12K | £21 | 0 |
| 31 Jul 2023 | £2,098 | £4,394 | £4,494 | 0 |
Where RJK Plumbers Ltd is registered
The registered office is in Southampton (SO19), in the Southampton local authority area, South East. Show SO19 2NT on a map.
Other trade companies in SO19
- 4LK Cleaning Company LtdCleaning companies
- Nest Path Properties LimitedBuilders
- Dautaj Groundworks LtdBuilders
- Craftline Carpentry Services LtdJoiners and carpenters
- Agape-Wise LimitedCleaning companies
- Cool Enterprises LtdPlumbers and heating engineers
- Jmac Carpentry & Building LtdPlasterers
- Auto Motive Dismantling - Amd LtdMotor traders
What happens if RJK Plumbers 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 14258634
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 July 2022 (4 years ago)
- Registered office
- 276 Spring Road, Southampton, SO19 2NT
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 11 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 Southampton
Other active plumbing and heating companies registered in Southampton.
- RLPH Limited2020
- Rosco Gas Ltd2019
- RP Heating Solutions Ltd2020
- Russell Drainage Services Limited2006
- S & J Heating & Cooling Ltd2026
- S. Philps Gas Services Ltd2003
- S.N.G. Mechanical Limited2006
- Safety Gas Ltd2014
All plumbing and heating companies in Southampton · All trades in Southampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are RJK Plumbers Ltd's accounts due?
RJK Plumbers Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is RJK Plumbers Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is RJK Plumbers Ltd still trading?
RJK Plumbers 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 RJK Plumbers Ltd do?
RJK Plumbers Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is RJK Plumbers Ltd?
RJK Plumbers Ltd was incorporated on 27 July 2022, 4 years ago.
What is the penalty if RJK Plumbers 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 RJK Plumbers 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.