- Companies
- Plumbers and heating engineers
- Porth
- MJB Servicing Ltd
MJB Servicing Ltd
- Company number
- 12749084
- Incorporated
- 16 Jul 20206 years trading
- Registered office
- 14 High Street, Porth, Mid Glamorgan, CF39 9AB
- Nature of business
- Plumbing, heat and air-conditioning installation
MJB Servicing Ltd is a 6-year-old private limited company registered in Porth, company number 12749084, one of 5 plumbing and heating companies in Porth. 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 unchanged on the year before, at £0.
- Net assets rose in 0 of 4 year-on-year comparisons on record.
- Current assets of £2,688 against £9,883 owed within a year: 0.3 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £0 | £2,688 | £9,883 | 2 | |
| 31 Jul 2024 | £0 | £2,547 | £10K | 2 | |
| 31 Jul 2023 | £0 | £5,909 | £16K | 2 | |
| 31 Jul 2022 | £0 | £3,526 | £9,525 | 2 | |
| 31 Jul 2021 | £12K | £12K | 2 |
Who runs and owns MJB Servicing Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| M*** B*** | Director | Jul 2021 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| M*** B*** | Director | Jul 2020 | Nov 2020 |
| J*** W*** | Director | Jul 2020 | Apr 2026 |
Person with significant control
Where MJB Servicing Ltd is registered
The registered office is in Porth (CF39), in the Rhondda Cynon Taf local authority area, Wales. Show CF39 9AB on a map.
Other trade companies in CF39
- Nvme Detailing LimitedMechanics and garages
- Choctar LimitedBuilders
- J Cantwell Surfacing & Contracting LtdCivil engineering
- Ok Rail LtdCivil engineering
- Porth Ceilings & Interiors LtdFinishing trades
- Wydex LtdBuilders
- Time Lec Services LtdElectricians
- Arb-Scape Tree Surgery & Landscaping LtdLandscapers and gardeners
What happens if MJB Servicing 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
- 12749084
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 July 2020 (6 years ago)
- Registered office
- 14 High Street, Porth, Mid Glamorgan, CF39 9AB
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 26 April 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 Porth
Other active plumbing and heating companies registered in Porth.
- A & T Bathrooms Ltd2023
- Blue Flame Gas Solutions Limited2015
- Dymmock Heating Ltd2018
- James Domestic Gas Services Ltd2021
All plumbing and heating companies in Porth · All trades in Porth · Plumbers and heating engineers across the UK
Frequently asked questions
When are MJB Servicing Ltd's accounts due?
MJB Servicing Ltd's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is MJB Servicing 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 MJB Servicing Ltd still trading?
MJB Servicing 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 MJB Servicing Ltd do?
MJB Servicing Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is MJB Servicing Ltd?
MJB Servicing Ltd was incorporated on 16 July 2020, 6 years ago.
Who runs MJB Servicing Ltd?
MJB Servicing Ltd has 1 active director, the longest-serving appointed in Jul 2021. Their names and service addresses are on the Companies House register.
Who owns MJB Servicing Ltd?
One person or company has significant control of MJB Servicing Ltd: an individual (owns 25% to 50% of the shares).
What is the penalty if MJB Servicing 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 MJB Servicing 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.