- Companies
- Plumbers and heating engineers
- Covent Garden
- Cornerstone Trades Ltd
Cornerstone Trades Ltd
- Company number
- 17255845
- Incorporated
- 2 Jun 2026
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Plumbing, heat and air-conditioning installation; Other construction installation; Other building completion and finishing; Other specialised construction activities n.e.c.
Cornerstone Trades Ltd is a newly incorporated private limited company registered in Covent Garden, company number 17255845, one of 170 plumbing and heating companies in Covent Garden. Its next accounts are due at Companies House on 2 March 2028, and its first CT600 is due at HMRC on 1 June 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 Cornerstone Trades Ltd is registered
The registered office is in Covent Garden (WC2H), in the Camden local authority area, London. Show WC2H 9JQ on a map.
Other trade companies in WC2H
- Superclean Agency LtdCleaning companies
- Sal Cleaning LtdCleaning companies
- Cityshine Facilities Services LtdCleaning companies
- Pureoceanscleaning LtdCleaning companies
- Muca Property Group LimitedProperty developers
- E.L.G.G LtdJoiners and carpenters
- First Ascentia Integrated LtdCleaning companies
- Fixing London LtdSpecialist contractors
Shared registered office
4,529 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 Cornerstone Trades 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 2 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 3 Mar 2028 to 2 Apr 2028 | £150 |
| 1 to 3 months late | 3 Apr 2028 to 2 Jun 2028 | £375 |
| 3 to 6 months late | 3 Jun 2028 to 2 Sep 2028 | £750 |
| More than 6 months late | From 3 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 17255845
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 June 2026
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 30 June (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 Covent Garden
Other active plumbing and heating companies registered in Covent Garden.
- Corporate Cooling Solutions Ltd2021
- Crossley P&H Contractors Ltd2026
- CSFX Limited2020
- D&B Mechanical Services Limited2024
- D'chariot Maintenance Ltd2026
- DCR Mechanical Ltd2025
- DCT Heating Ltd2023
- DP Plumbing & Drainage Ltd2022
All plumbing and heating companies in Covent Garden · All trades in Covent Garden · Plumbers and heating engineers across the UK
Frequently asked questions
When are Cornerstone Trades Ltd's accounts due?
Cornerstone Trades Ltd's next accounts are due at Companies House by 2 March 2028 (in 507 days), covering the period to 30 June 2027.
When is Cornerstone Trades 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 1 June 2027, due by 1 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Cornerstone Trades Ltd still trading?
Cornerstone Trades 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 Cornerstone Trades Ltd do?
Cornerstone Trades Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390); Other specialised construction activities n.e.c. (SIC 43999).
How old is Cornerstone Trades Ltd?
Cornerstone Trades Ltd was incorporated on 2 June 2026, less than a year ago.
What is the penalty if Cornerstone Trades 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 Cornerstone Trades 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.