- Companies
- Plumbers and heating engineers
- Witham
- CJB Mechanical Services Ltd
CJB Mechanical Services Ltd
- Company number
- 16519778
- Incorporated
- 16 Jun 20251 year trading
- Registered office
- 20 Barleyfields, Witham, CM8 2FD
- Nature of business
- Plumbing, heat and air-conditioning installation
CJB Mechanical Services Ltd is a 1-year-old private limited company registered in Witham, company number 16519778, one of 14 plumbing and heating companies in Witham. Its next accounts are due at Companies House on 16 March 2027, and its first CT600 is due at HMRC on 15 June 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Who runs and owns CJB Mechanical Services Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| C*** B*** | Director | Jun 2025 |
Person with significant control
Where CJB Mechanical Services Ltd is registered
The registered office is in Witham (CM8), in the Braintree local authority area, East of England. Show CM8 2FD on a map.
Other trade companies in CM8
- Reivax Car Valeting LtdMechanics and garages
- CPH Contracting LtdInstallers
- Rhino Mechanical Services LtdPlumbers and heating engineers
- KM Core Systems LtdElectricians
- New Worlds Tech LtdRepair services
- Me Me Hire LtdSpecialist contractors
- RBK Access LtdScaffolders
- Pressure Wash LtdCleaning companies
What happens if CJB Mechanical Services 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 16 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 17 Mar 2027 to 16 Apr 2027 | £150 |
| 1 to 3 months late | 17 Apr 2027 to 16 Jun 2027 | £375 |
| 3 to 6 months late | 17 Jun 2027 to 16 Sep 2027 | £750 |
| More than 6 months late | From 17 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 16519778
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 June 2025 (1 year ago)
- Registered office
- 20 Barleyfields, Witham, CM8 2FD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 15 June 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 Witham
Other active plumbing and heating companies registered in Witham.
- D J Bathrooms & Property Maintenance Ltd2018
- Essex Heating Solutions Limited2011
- Fja Plumbing & Heating Limited2021
- G J Mariner and Son Limited2004
- Ideal Climate Limited2019
- Inoheat Limited2017
- Jbcoolingsolutions Ltd2026
- Meridian Mechanical Limited2026
All plumbing and heating companies in Witham · All trades in Witham · Plumbers and heating engineers across the UK
Frequently asked questions
When are CJB Mechanical Services Ltd's accounts due?
CJB Mechanical Services Ltd's next accounts are due at Companies House by 16 March 2027 (in 154 days), covering the period to 30 June 2026.
When is CJB Mechanical Services Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 15 June 2026, due by 15 June 2027, and one for the period to 30 June 2026, due by 30 June 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is CJB Mechanical Services Ltd still trading?
CJB Mechanical Services 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 CJB Mechanical Services Ltd do?
CJB Mechanical Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is CJB Mechanical Services Ltd?
CJB Mechanical Services Ltd was incorporated on 16 June 2025, 1 year ago.
Who runs CJB Mechanical Services Ltd?
CJB Mechanical Services Ltd has 1 active director, the longest-serving appointed in Jun 2025. Their names and service addresses are on the Companies House register.
Who owns CJB Mechanical Services Ltd?
One person or company has significant control of CJB Mechanical Services Ltd: an individual (owns 75% or more of the shares).
What is the penalty if CJB Mechanical Services 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 CJB Mechanical Services 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.