- Companies
- Plumbers and heating engineers
- Carshalton
- JDG Mechanical Limited
JDG Mechanical Limited
- Company number
- 15740141
- Incorporated
- 24 May 20242 years trading
- Registered office
- 88 Culvers Retreat, Carshalton, SM5 2BE
- Nature of business
- Plumbing, heat and air-conditioning installation
JDG Mechanical Limited is a 2-year-old private limited company registered in Carshalton, company number 15740141, one of 35 plumbing and heating companies in Carshalton. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where JDG Mechanical Limited is registered
The registered office is in Carshalton (SM5), in the Sutton local authority area, London. Show SM5 2BE on a map.
Other trade companies in SM5
- Rich Detailz LtdMechanics and garages
- Sutton Motor and Garage LtdMechanics and garages
- Ecobuild Plumbing & Heating LtdPlumbers and heating engineers
- Aaircon Services LtdPlumbers and heating engineers
- Perthy Properties (Greenhills) LimitedProperty developers
- Jophp LimitedCleaning companies
- Pro-Type Roofing LtdRoofers
- Mic Cleaning LimitedCleaning companies
What happens if JDG Mechanical Limited 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 15740141
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 May 2024 (2 years ago)
- Registered office
- 88 Culvers Retreat, Carshalton, SM5 2BE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 23 May 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 Carshalton
Other active plumbing and heating companies registered in Carshalton.
- KNK Engineering Services Ltd2025
- Lambert Heating and Renewables Ltd2013
- London Pipefitting Limited2019
- MHP Surrey Ltd2015
- Osm Pipework Ltd2023
- P&G Heating and Plumbing Ltd2020
- Partridge Heating &Plumbing Ltd2026
- Raymond Gas Expert Limited2026
All plumbing and heating companies in Carshalton · All trades in Carshalton · Plumbers and heating engineers across the UK
Frequently asked questions
When are JDG Mechanical Limited's accounts due?
JDG Mechanical Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is JDG Mechanical Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is JDG Mechanical Limited still trading?
JDG Mechanical Limited 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 JDG Mechanical Limited do?
JDG Mechanical Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is JDG Mechanical Limited?
JDG Mechanical Limited was incorporated on 24 May 2024, 2 years ago.
What is the penalty if JDG Mechanical Limited 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 JDG Mechanical Limited 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.