- Companies
- Machinery repair and installation
- Mitcham
- Hidden Cool Ltd
Hidden Cool Ltd
- Company number
- 16442900
- Incorporated
- 12 May 20251 year trading
- Registered office
- Unit A1 Connaught Business Centre, 22 Willow Lane, Mitcham, CR4 4NA
- Nature of business
- Installation of industrial machinery and equipment; Steam and air conditioning supply; Agents involved in the sale of machinery, industrial equipment, ships and aircraft; Engineering related scientific and technical consulting activities
Hidden Cool Ltd is a 1-year-old private limited company registered in Mitcham, company number 16442900, one of 20 machinery repair and installation companies in Mitcham. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 May 2026, as filed at Companies House.
Where Hidden Cool Ltd is registered
The registered office is in Mitcham (CR4), in the Merton local authority area, London. Show CR4 4NA on a map.
Other trade companies in CR4
- Mendevo LimitedFloor and wall tilers
- Az Auto Body Repair LtdMechanics and garages
- Welcome Maintenance LimitedPainters and decorators
- Fixmot LtdMechanics and garages
- MPB Property Care LtdFinishing trades
- Aoo Building Services LtdBuilders
- LDN Plumbing Heating and Cooling LimitedPlumbers and heating engineers
- Dgha Construction LtdBuilders
What happens if Hidden Cool 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 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
- 16442900
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 May 2025 (1 year ago)
- Registered office
- Unit A1 Connaught Business Centre, 22 Willow Lane, Mitcham, CR4 4NA
- Nature of business
- Installation of industrial machinery and equipment (SIC 33200)
Steam and air conditioning supply (SIC 35300)
Agents involved in the sale of machinery, industrial equipment, ships and aircraft (SIC 46140)
Engineering related scientific and technical consulting activities (SIC 71122) - Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 12 December 2025
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Mitcham
Other active machinery repair and installation companies registered in Mitcham.
- Hybreeze Refrigeration & Air Conditioning Ltd2019
- Jimmy Autos Limited2023
- Johnny Plumbing and Heating Ltd2026
- Laval Insights Consultancy Ltd2025
- Lennon & Sons Transport Limited2023
- Mabiza Dune Limited2026
- New Strand Motor Ltd2015
- Phone Surgery Beaconsfield Ltd2025
All machinery repair and installation companies in Mitcham · All trades in Mitcham · Machinery repair and installation across the UK
Frequently asked questions
When are Hidden Cool Ltd's accounts due?
Hidden Cool Ltd's next accounts are due at Companies House by 29 February 2028 (in 505 days), covering the period to 31 May 2027.
When is Hidden Cool Ltd's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is Hidden Cool Ltd still trading?
Hidden Cool 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 Hidden Cool Ltd do?
Hidden Cool Ltd is registered under Installation of industrial machinery and equipment (SIC 33200); Steam and air conditioning supply (SIC 35300); Agents involved in the sale of machinery, industrial equipment, ships and aircraft (SIC 46140); Engineering related scientific and technical consulting activities (SIC 71122).
How old is Hidden Cool Ltd?
Hidden Cool Ltd was incorporated on 12 May 2025, 1 year ago.
What is the penalty if Hidden Cool 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 Hidden Cool 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.