- Companies
- Finishing trades
- Barnet
- Solid Conversions Ltd
Solid Conversions Ltd
- Company number
- 12405419
- Incorporated
- 15 Jan 20206 years trading
- Registered office
- 55A Crescent Road, Barnet, EN4 9RD
- Nature of business
- Other building completion and finishing
Solid Conversions Ltd is a 6-year-old private limited company registered in Barnet, company number 12405419, one of 69 building finishing companies in Barnet. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £23K on the year before, to -£25K.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £35K against £37K owed within a year: 1.0 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | -£25K | £24K | £35K | £37K | 2 |
| 31 Jan 2024 | -£1,897 | £34K | £45K | £41K | 2 |
| 31 Jan 2023 | -£39K | £4,845 | £8,713 | £39K | 2 |
| 31 Jan 2022 | -£3,794 | £7,286 | £11K | £29K | 2 |
| 31 Jan 2021 | -£6,720 | £26K | £27K | £34K | 2 |
Who runs and owns Solid Conversions Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| L*** K*** | Director | Nov 2020 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| G*** K*** | Director | Jan 2020 | Nov 2020 |
Person with significant control
Where Solid Conversions Ltd is registered
The registered office is in Barnet (EN4), in the Barnet local authority area, London. Show EN4 9RD on a map.
Other trade companies in EN4
- Mechanica Frequentia Calculi LtdElectricians
- Conrad Cleaning LimitedCleaning companies
- Vreto & Co LtdCleaning companies
- Reclaim Automotive UK LtdMotor traders
- We Love 500'S LimitedMechanics and garages
- Vanta Gas & Heating LtdBuilders
- T C Developments LtdProperty developers
- Xran LtdBuilders
What happens if Solid Conversions 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 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 12405419
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 January 2020 (6 years ago)
- Registered office
- 55A Crescent Road, Barnet, EN4 9RD
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 1 December 2025
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Barnet
Other active building finishing companies registered in Barnet.
- T&T Group Limited2014
- Tiptop Contractors Limited2020
- U&M Group Ltd2001
- Valdis Design & Construction Ltd2025
- Vistabuild Ltd2008
- A Brown Builders Holdings Ltd2013
- A-Z Builders All Ltd2016
- Abdiaj Construction Ltd2019
All building finishing companies in Barnet · All trades in Barnet · Finishing trades across the UK
Frequently asked questions
When are Solid Conversions Ltd's accounts due?
Solid Conversions Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Solid Conversions Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Solid Conversions Ltd still trading?
Solid Conversions 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 Solid Conversions Ltd do?
Solid Conversions Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Solid Conversions Ltd?
Solid Conversions Ltd was incorporated on 15 January 2020, 6 years ago.
Who runs Solid Conversions Ltd?
Solid Conversions Ltd has 1 active director, the longest-serving appointed in Nov 2020. Their names and service addresses are on the Companies House register.
Who owns Solid Conversions Ltd?
One person or company has significant control of Solid Conversions Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Solid Conversions 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 Solid Conversions 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.