- Companies
- Plumbers and heating engineers
- Newry
- J and D Mechanical Services Ltd
J and D Mechanical Services Ltd
- Company number
- NI691915
- Incorporated
- 17 Oct 20223 years trading
- Registered office
- 15 Millvale, Kilkeel, Newry, BT34 4YJ
- Nature of business
- Plumbing, heat and air-conditioning installation
J and D Mechanical Services Ltd is a 3-year-old private limited company registered in Newry, company number NI691915, one of 72 plumbing and heating companies in Newry. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £89K (+542.8%) on the year before, to £73K.
- Current assets of £96K against £38K owed within a year: 2.5 times cover.
- 5 employees on average, up from 3 the year before.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £73K | £61K | £96K | £38K | 5 |
| 31 Oct 2024 | -£16K | £5,898 | £20K | £40K | 3 |
| 31 Oct 2023 | £26K | £13K | £62K | £79K | 3 |
Where J and D Mechanical Services Ltd is registered
The registered office is in Newry (BT34), in the Newry, Mourne and Down local authority area, Northern Ireland. Show BT34 4YJ on a map.
Other trade companies in BT34
- JMP Live LimitedElectricians
- SSL Solar & Electrical LimitedElectricians
- Ocn Construction LtdBuilders
- Warren Properties Ireland LimitedBuilders
- Rog Electrical LtdElectricians
- DMN Mechanics LimitedMotor traders
- M & M Consultants Ire LtdSpecialist contractors
- C Quinn Contracts LtdBuilders
What happens if J and D 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 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
- NI691915
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 October 2022 (3 years ago)
- Registered office
- 15 Millvale, Kilkeel, Newry, BT34 4YJ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 16 October 2025
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 Newry
Other active plumbing and heating companies registered in Newry.
- J R Waddell & Son Limited2004
- J.Quinn Plumbing and Heating Ltd2003
- JMG Mechanical Services Ltd2003
- JMM Insulation Limited2019
- Joe Murphy Plumbing Ltd2019
- Killowen Plumbing & Heating Limited2018
- Loughview Mechanical Limited2020
- Maglen Mechanical Ltd2026
All plumbing and heating companies in Newry · All trades in Newry · Plumbers and heating engineers across the UK
Frequently asked questions
When are J and D Mechanical Services Ltd's accounts due?
J and D Mechanical Services Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is J and D Mechanical Services Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is J and D Mechanical Services Ltd still trading?
J and D 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 and D Mechanical Services Ltd do?
J and D Mechanical Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is J and D Mechanical Services Ltd?
J and D Mechanical Services Ltd was incorporated on 17 October 2022, 3 years ago.
What is the penalty if J and D 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 and D 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.