- Companies
- Plumbers and heating engineers
- London
- BMDH Mechanical Ltd
BMDH Mechanical Ltd
- Company number
- 17246057
- Incorporated
- 27 May 2026
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Plumbing, heat and air-conditioning installation
BMDH Mechanical Ltd is a newly incorporated private limited company registered in London, company number 17246057, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 27 February 2028, and its first CT600 is due at HMRC on 26 May 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 BMDH Mechanical Ltd is registered
The registered office is in London (EC1V), in the Islington local authority area, London. Show EC1V 2NX on a map.
Other trade companies in EC1V
- Cardiff Electrical Solutions LtdElectricians
- Edemis Construction LtdBuilders
- Zaylan LtdProperty developers
- Pronto Roofing and Construction LtdRoofers
- Instal Systems LtdPlumbers and heating engineers
- J&R Partners LtdBuilders
- The Tile Craft LtdFinishing trades
- Cathal Od Solutions LtdSpecialist contractors
Shared registered office
2,436 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if BMDH 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 27 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Feb 2028 to 27 Mar 2028 | £150 |
| 1 to 3 months late | 28 Mar 2028 to 27 May 2028 | £375 |
| 3 to 6 months late | 28 May 2028 to 27 Aug 2028 | £750 |
| More than 6 months late | From 28 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 17246057
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 May 2026
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (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 London
Other active plumbing and heating companies registered in London.
- BN Building Solutions Ltd2026
- Boat Heating Plumbing & Air Conditioning Ltd2025
- Bob and Sons Limited2009
- Boiler and Breeze Ltd2026
- Boiler Bunny Heating Limited2018
- Boiler Doctor PHD Ltd2023
- Boiler Doctor Plumbing and Heating Ltd2023
- Boiler Installations London Ltd2022
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are BMDH Mechanical Ltd's accounts due?
BMDH Mechanical Ltd's next accounts are due at Companies House by 27 February 2028 (in 503 days), covering the period to 31 May 2027.
When is BMDH Mechanical 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 26 May 2027, due by 26 May 2028, and one for the period to 31 May 2027, due by 31 May 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is BMDH Mechanical Ltd still trading?
BMDH 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 BMDH Mechanical Ltd do?
BMDH Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is BMDH Mechanical Ltd?
BMDH Mechanical Ltd was incorporated on 27 May 2026, less than a year ago.
What is the penalty if BMDH 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 BMDH 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.