- Companies
- Plumbers and heating engineers
- Coventry
- TJ Mechanical Ltd
TJ Mechanical Ltd
- Company number
- 17156123
- Incorporated
- 14 Apr 2026
- Registered office
- 62 James Green Road, Coventry, CV4 9SN
- Nature of business
- Plumbing, heat and air-conditioning installation
TJ Mechanical Ltd is a newly incorporated private limited company registered in Coventry, company number 17156123, one of 190 plumbing and heating companies in Coventry. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 TJ Mechanical Ltd is registered
The registered office is in Coventry (CV4), in the Coventry local authority area, West Midlands. Show CV4 9SN on a map.
Other trade companies in CV4
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- Four Pillar Estates LtdProperty developers
- Top Automobiles LtdMotor traders
- Coventry Cooling LtdPlumbers and heating engineers
- McMahon Renovations LtdBuilders
- LJB Air Conditioning LtdPlumbers and heating engineers
- BTS Tyres LtdMotor traders
- Datojeli LtdCivil engineering
What happens if TJ Mechanical 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 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 17156123
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 April 2026
- Registered office
- 62 James Green Road, Coventry, CV4 9SN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
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 Coventry
Other active plumbing and heating companies registered in Coventry.
- TJB Plumbing & Heating Limited2006
- Turtle Drain and Plumbing Services Limited2017
- UK Warmer Homes Limited2025
- Warmington Plumbing & Heating Limited1985
- Warmvent Ltd2023
- Warwickshire Gas Services Ltd2018
- Wave Plumbing and Heating Ltd2023
- Waves Engineering Ltd2026
All plumbing and heating companies in Coventry · All trades in Coventry · Plumbers and heating engineers across the UK
Frequently asked questions
When are TJ Mechanical Ltd's accounts due?
TJ Mechanical Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is TJ Mechanical Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is TJ Mechanical Ltd still trading?
TJ Mechanical 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 TJ Mechanical Ltd do?
TJ Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is TJ Mechanical Ltd?
TJ Mechanical Ltd was incorporated on 14 April 2026, less than a year ago.
What is the penalty if TJ Mechanical 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 TJ Mechanical 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.