- Companies
- Specialist contractors
- Pentre
- Jones Mechanical Engineering Ltd
Jones Mechanical Engineering Ltd
- Company number
- 16729700
- Incorporated
- 19 Sep 20251 year trading
- Registered office
- 35 William Street, Ystrad, Pentre, Mid Glamorgan, CF41 7QU
- Nature of business
- Other specialised construction activities n.e.c.
Jones Mechanical Engineering Ltd is a 1-year-old private limited company registered in Pentre, company number 16729700, one of the UK's specialist construction companies. 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
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Jones Mechanical Engineering LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Financial snapshot, 2026
From the balance sheet at 31 March 2026, as filed at Companies House.
Where Jones Mechanical Engineering Ltd is registered
The registered office is in Pentre (CF41), in the Rhondda Cynon Taf local authority area, Wales. Show CF41 7QU on a map.
Other trade companies in CF41
- K.Gibbon Ipf LtdBuilders
- Proscan Auto Services LtdMechanics and garages
- RHL Rail Services LtdBuilders
- J Allen Bricklaying LtdBuilders
- Enviroclad LimitedFinishing trades
- JT Renovations LtdBuilders
- Trident Facilities Group LtdCleaning companies
- Symmons Aviation Services LtdMachinery repair and installation
What happens if Jones Mechanical Engineering 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
- 16729700
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 September 2025 (1 year ago)
- Registered office
- 35 William Street, Ystrad, Pentre, Mid Glamorgan, CF41 7QU
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 18 September 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Pentre
Other active specialist construction companies registered in Pentre.
All specialist construction companies in Pentre · All trades in Pentre · Specialist contractors across the UK
Frequently asked questions
When are Jones Mechanical Engineering Ltd's accounts due?
Jones Mechanical Engineering Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Jones Mechanical Engineering 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 Jones Mechanical Engineering Ltd still trading?
Jones Mechanical Engineering 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 Jones Mechanical Engineering Ltd do?
Jones Mechanical Engineering Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Jones Mechanical Engineering Ltd?
Jones Mechanical Engineering Ltd was incorporated on 19 September 2025, 1 year ago.
What is the penalty if Jones Mechanical Engineering 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 Jones Mechanical Engineering 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.