- Companies
- Joiners and carpenters
- London
- CM Proinstall Joinery Ltd
CM Proinstall Joinery Ltd
- Company number
- 16664099
- Incorporated
- 21 Aug 20251 year trading
- Registered office
- Flat 6, Rosefinch Apartments, 7 Shearwater Drive, London, NW9 7FW
- Nature of business
- Joinery installation; Floor and wall covering
CM Proinstall Joinery Ltd is a 1-year-old private limited company registered in London, company number 16664099, one of 692 joinery companies in London. Its next accounts are due at Companies House on 21 May 2027, and its first CT600 is due at HMRC on 20 August 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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Who runs and owns CM Proinstall Joinery Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| A*** M*** | Director | Aug 2025 |
Person with significant control
Where CM Proinstall Joinery Ltd is registered
The registered office is in London (NW9), in the Barnet local authority area, London. Show NW9 7FW on a map.
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What happens if CM Proinstall Joinery 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 21 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 22 May 2027 to 21 Jun 2027 | £150 |
| 1 to 3 months late | 22 Jun 2027 to 21 Aug 2027 | £375 |
| 3 to 6 months late | 22 Aug 2027 to 21 Nov 2027 | £750 |
| More than 6 months late | From 22 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 16664099
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 August 2025 (1 year ago)
- Registered office
- Flat 6, Rosefinch Apartments, 7 Shearwater Drive, London, NW9 7FW
- Nature of business
- Joinery installation (SIC 43320)
Floor and wall covering (SIC 43330) - Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 20 August 2026
Filing notes for joinery companies
Joinery companies can carry stock and work in progress at the year end, especially bespoke workshop work, and that figure moves the profit for the year.
Similar companies in London
Other active joinery companies registered in London.
- CMB Carpentry and Joinery Limited2019
- Co & Builder Ltd.2008
- Cochrane Bespoke Ltd2024
- Complete Fit Ltd2024
- Construction Ag Limited2022
- Cor Domi Limited2021
- Core Building and Carpentry Services Limited2007
- Costapalcu Carpentry and Joinery Ltd2022
All joinery companies in London · All trades in London · Joiners and carpenters across the UK
Frequently asked questions
When are CM Proinstall Joinery Ltd's accounts due?
CM Proinstall Joinery Ltd's next accounts are due at Companies House by 21 May 2027 (in 221 days), covering the period to 31 August 2026.
When is CM Proinstall Joinery 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 20 August 2026, due by 20 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is CM Proinstall Joinery Ltd still trading?
CM Proinstall Joinery 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 CM Proinstall Joinery Ltd do?
CM Proinstall Joinery Ltd is registered under Joinery installation (SIC 43320); Floor and wall covering (SIC 43330).
How old is CM Proinstall Joinery Ltd?
CM Proinstall Joinery Ltd was incorporated on 21 August 2025, 1 year ago.
Who runs CM Proinstall Joinery Ltd?
CM Proinstall Joinery Ltd has 1 active director, the longest-serving appointed in Aug 2025. Their names and service addresses are on the Companies House register.
Who owns CM Proinstall Joinery Ltd?
One person or company has significant control of CM Proinstall Joinery Ltd: an individual (owns 75% or more of the shares).
What is the penalty if CM Proinstall Joinery 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 CM Proinstall Joinery 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.