- Companies
- Plumbers and heating engineers
- Stevenage
- J&D Mechanical Services London Ltd
J&D Mechanical Services London Ltd
- Company number
- 16709667
- Incorporated
- 10 Sep 20251 year trading
- Registered office
- 4 Burghley Close, Stevenage, SG2 8SX
- Nature of business
- Plumbing, heat and air-conditioning installation; Other construction installation
J&D Mechanical Services London Ltd is a 1-year-old private limited company registered in Stevenage, company number 16709667, one of 95 plumbing and heating companies in Stevenage. Its next accounts are due at Companies House on 10 June 2027, and its first CT600 is due at HMRC on 9 September 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&D Mechanical Services London Ltd is registered
The registered office is in Stevenage (SG2), in the Stevenage local authority area, East of England. Show SG2 8SX on a map.
Other trade companies in SG2
- Amkj Construction LtdBuilders
- Terrascape Solution LtdSpecialist contractors
- K Taylor Ac Contractors LimitedPlumbers and heating engineers
- Kcet Services LtdProperty developers
- Saunders Climate Control LtdPlumbers and heating engineers
- Emp Energy LtdElectricians
- TKTK Cock Green Dev LtdProperty developers
- Mario's Building & Landscaping LtdBuilders
What happens if J&D Mechanical Services London 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 10 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 11 Jun 2027 to 10 Jul 2027 | £150 |
| 1 to 3 months late | 11 Jul 2027 to 10 Sep 2027 | £375 |
| 3 to 6 months late | 11 Sep 2027 to 10 Dec 2027 | £750 |
| More than 6 months late | From 11 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 16709667
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 September 2025 (1 year ago)
- Registered office
- 4 Burghley Close, Stevenage, SG2 8SX
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 9 September 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 Stevenage
Other active plumbing and heating companies registered in Stevenage.
- JR Plumbing, Heating and Gas Ltd2021
- K Taylor Ac Contractors Limited2026
- KJW (Plumbing & Heating) Limited2003
- Lis Plumbing Ltd2023
- Lothbury James Limited2017
- Majestic Plumbing and Heating Limited2017
- Masterplumbing&Heating Ltd2026
- Mitchell’S Heating & Plumbing Limited2023
All plumbing and heating companies in Stevenage · All trades in Stevenage · Plumbers and heating engineers across the UK
Frequently asked questions
When are J&D Mechanical Services London Ltd's accounts due?
J&D Mechanical Services London Ltd's next accounts are due at Companies House by 10 June 2027 (in 240 days), covering the period to 30 September 2026.
When is J&D Mechanical Services London 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 9 September 2026, due by 9 September 2027, and one for the period to 30 September 2026, due by 30 September 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is J&D Mechanical Services London Ltd still trading?
J&D Mechanical Services London 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&D Mechanical Services London Ltd do?
J&D Mechanical Services London Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290).
How old is J&D Mechanical Services London Ltd?
J&D Mechanical Services London Ltd was incorporated on 10 September 2025, 1 year ago.
What is the penalty if J&D Mechanical Services London 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&D Mechanical Services London 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.