- Companies
- Electricians
- Orpington
- J&J Mechanical Services Ltd
J&J Mechanical Services Ltd
- Company number
- 16793301
- Incorporated
- 17 Oct 2025
- Registered office
- 39 High Street, Orpington, BR6 0JE
- Nature of business
- Electrical installation
J&J Mechanical Services Ltd is a newly incorporated private limited company registered in Orpington, company number 16793301, one of 91 electrical contractors in Orpington. Its next accounts are due at Companies House on 17 July 2027, and its first CT600 is due at HMRC on 16 October 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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Where J&J Mechanical Services Ltd is registered
The registered office is in Orpington (BR6), in the Bromley local authority area, London. Show BR6 0JE on a map.
Other trade companies in BR6
- Tog Fire Protection LtdPlumbers and heating engineers
- Pointfast Global LtdMachinery repair and installation
- Chebic Energy and Property Services LtdFinishing trades
- Prime Refurbishment Kent LtdBuilders
- A.D Building Services London LtdFinishing trades
- Nemo Wash and Go LtdCleaning companies
- T.E.A.Mspotless LtdCleaning companies
- Howard Construction LtdProperty developers
Shared registered office
131 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if J&J 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 17 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Jul 2027 to 17 Aug 2027 | £150 |
| 1 to 3 months late | 18 Aug 2027 to 17 Oct 2027 | £375 |
| 3 to 6 months late | 18 Oct 2027 to 17 Jan 2028 | £750 |
| More than 6 months late | From 18 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16793301
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 October 2025
- Registered office
- 39 High Street, Orpington, BR6 0JE
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Orpington
Other active electrical contractors registered in Orpington.
- J.G.Ware Limited2013
- JB Electrical Group Ltd2026
- JC5 Electrical Services Limited2022
- Kamilos Electrical Services Ltd2016
- KB Electrical South East Ltd2023
- KWH Services Limited2015
- Loughton Mechanical & Electrical Contractors Limited2013
- LT Electrical Ltd2025
All electrical contractors in Orpington · All trades in Orpington · Electricians across the UK
Frequently asked questions
When are J&J Mechanical Services Ltd's accounts due?
J&J Mechanical Services Ltd's next accounts are due at Companies House by 17 July 2027 (in 277 days), covering the period to 31 October 2026.
When is J&J 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 16 October 2026, due by 16 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is J&J Mechanical Services Ltd still trading?
J&J 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 J&J Mechanical Services Ltd do?
J&J Mechanical Services Ltd is registered under Electrical installation (SIC 43210).
How old is J&J Mechanical Services Ltd?
J&J Mechanical Services Ltd was incorporated on 17 October 2025, less than a year ago.
What is the penalty if J&J 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 J&J 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.