- Companies
- Installers
- Walsall
- Simcox Construction & Conversions Ltd
Simcox Construction & Conversions Ltd
- Company number
- 13438797
- Incorporated
- 4 Jun 20215 years trading
- Registered office
- 90 Howdles Lane, Brownhills, Walsall, WS8 7PJ
- Nature of business
- Other construction installation
Simcox Construction & Conversions Ltd is a 5-year-old private limited company registered in Walsall, company number 13438797, one of 78 installation companies (insulation, lifts, shutters and similar) in Walsall. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 up £7,559 (+103.4%) on the year before, to £250.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £27K against £32K owed within a year: 0.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £250 | £27K | £32K | 1 | |
| 30 Jun 2024 | -£7,309 | £20K | £35K | 1 | |
| 30 Jun 2023 | -£8,689 | £16K | £35K | 1 | |
| 30 Jun 2022 | £10K | £20K | £8,943 | 1 |
Where Simcox Construction & Conversions Ltd is registered
The registered office is in Walsall (WS8), in the Walsall local authority area, West Midlands. Show WS8 7PJ on a map.
Other trade companies in WS8
- Ace Property Maintenance (Brownhills) LimitedLandscapers and gardeners
- Ward’S Commercials LimitedMotor traders
- Oakley Signature Developments LtdProperty developers
- SL Electrical & Installations LtdElectricians
- McNif Global LtdMechanics and garages
- Mercian Fire LimitedInstallers
- Eccleshall Carpets & Flooring LtdFloor and wall tilers
- Suresh Group LtdProperty developers
What happens if Simcox Construction & 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 13438797
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 June 2021 (5 years ago)
- Registered office
- 90 Howdles Lane, Brownhills, Walsall, WS8 7PJ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 3 June 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Walsall
Other active installation companies (insulation, lifts, shutters and similar) registered in Walsall.
- Simply Renovations Limited2024
- SRG Groundworks Limited2020
- Staffordshire Paving Co Ltd2023
- Stone Creations Ltd2026
- Structural Construction UK Limited2025
- Sure Sealants Ltd2025
- Swanns Builders Ltd2018
- Tech Co Windows and Doors Ltd2025
All installation companies (insulation, lifts, shutters and similar) in Walsall · All trades in Walsall · Installers across the UK
Frequently asked questions
When are Simcox Construction & Conversions Ltd's accounts due?
Simcox Construction & Conversions Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Simcox Construction & Conversions Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Simcox Construction & Conversions Ltd still trading?
Simcox Construction & 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 Simcox Construction & Conversions Ltd do?
Simcox Construction & Conversions Ltd is registered under Other construction installation (SIC 43290).
How old is Simcox Construction & Conversions Ltd?
Simcox Construction & Conversions Ltd was incorporated on 4 June 2021, 5 years ago.
What is the penalty if Simcox Construction & 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 Simcox Construction & 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.