- Companies
- Plumbers and heating engineers
- London
- CMCV Mechanical Limited
CMCV Mechanical Limited
- Company number
- 17217790
- Incorporated
- 13 May 2026
- Registered office
- Crystal Tax Consultancy Ltd Adam House, 7-10 Adam Street, London, WC2N 6AA
- Nature of business
- Plumbing, heat and air-conditioning installation
CMCV Mechanical Limited is a newly incorporated private limited company registered in London, company number 17217790, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 13 February 2028, and its first CT600 is due at HMRC on 12 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 CMCV Mechanical Limited is registered
The registered office is in London (WC2N), in the Westminster local authority area, London. Show WC2N 6AA on a map.
Other trade companies in WC2N
- London Plumbing & Drainage Maintenance LimitedPlumbers and heating engineers
- LJD Projects LimitedCivil engineering
- Refuge Construction Group LimitedBuilders
- Adelphi Contractors LimitedBuilders
- Bretby Autobahn LimitedMotor traders
- Isofit Mechanical Services LtdInstallers
- Indtech Electrical Consultants LtdElectricians
- Ivory Swan Services LtdCleaning companies
Also registered at this address
11 other companies use the same registered office as CMCV Mechanical Limited.
- Blended Elements LimitedElectricians
- Caravel HVAC Services LimitedPlumbers and heating engineers
- CPD GRP LtdInstallers
- HVAC Horizons LimitedElectricians
- LJD Projects LimitedCivil engineering
- London Plumbing & Drainage Maintenance LimitedPlumbers and heating engineers
- My Personal Electrician LimitedElectricians
- Prime Gas & Heating Solutions LimitedSpecialist contractors
- Refuge Construction Group LimitedBuilders
- S&B Lifting Solutions LimitedSpecialist contractors
- V.A Lifting Solutions LimitedBuilders
What happens if CMCV 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 13 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 14 Feb 2028 to 13 Mar 2028 | £150 |
| 1 to 3 months late | 14 Mar 2028 to 13 May 2028 | £375 |
| 3 to 6 months late | 14 May 2028 to 13 Aug 2028 | £750 |
| More than 6 months late | From 14 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
- 17217790
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 May 2026
- Registered office
- Crystal Tax Consultancy Ltd Adam House, 7-10 Adam Street, London, WC2N 6AA
- 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.
- CMD Heating Ltd2021
- CMR Plumbing & Heating Limited2025
- CN Plumbing and Drainage Services Limited2026
- Co & Gas Limited2016
- Co2 Reduction Ltd2021
- Colak Maintenance Ltd2021
- Coldblow Services Ltd2026
- Coldrooms Cooling Ltd2023
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are CMCV Mechanical Limited's accounts due?
CMCV Mechanical Limited's next accounts are due at Companies House by 13 February 2028 (in 489 days), covering the period to 31 May 2027.
When is CMCV Mechanical Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 12 May 2027, due by 12 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 CMCV Mechanical Limited still trading?
CMCV 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 CMCV Mechanical Limited do?
CMCV Mechanical Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is CMCV Mechanical Limited?
CMCV Mechanical Limited was incorporated on 13 May 2026, less than a year ago.
What is the penalty if CMCV 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 CMCV 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.