- Companies
- Installers
- Billericay
- Strongco Ltd
Strongco Ltd
- Company number
- 12920025
- Incorporated
- 1 Oct 20206 years trading
- Registered office
- 5 Morris Avenue, Billericay, CM11 2LB
- Nature of business
- Other construction installation; Other specialised construction activities n.e.c.; Other engineering activities
Strongco Ltd is a 6-year-old private limited company registered in Billericay, company number 12920025, one of 37 installation companies (insulation, lifts, shutters and similar) in Billericay. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 unchanged on the year before, at £1.
- Net assets rose in 0 of 4 year-on-year comparisons on record.
- 1 employee 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 Oct 2025 | £1 | £1 | 1 | ||
| 31 Oct 2024 | £1 | £1 | 1 | ||
| 31 Oct 2023 | £1 | £1 | 1 | ||
| 31 Oct 2022 | £1 | £1 | 1 | ||
| 31 Oct 2021 | £1 | £1 | £0 | 1 |
Where Strongco Ltd is registered
The registered office is in Billericay (CM11), in the Basildon local authority area, East of England. Show CM11 2LB on a map.
Other trade companies in CM11
- Washthatoffbrother LtdCleaning companies
- Prestige Auto Engineering LtdMechanics and garages
- E3 Building and Roofing LtdRoofers
- E3 Landscaping LtdLandscapers and gardeners
- The Aircon Specialist LtdPlumbers and heating engineers
- 1ST Class Property Group LimitedProperty developers
- Bobys Garage Engine Build HPC LtdMechanics and garages
- Winsor Autocare Services LimitedMechanics and garages
What happens if Strongco 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 12920025
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 October 2020 (6 years ago)
- Registered office
- 5 Morris Avenue, Billericay, CM11 2LB
- Nature of business
- Other construction installation (SIC 43290)
Other specialised construction activities n.e.c. (SIC 43999)
Other engineering activities (SIC 71129) - Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 19 February 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 Billericay
Other active installation companies (insulation, lifts, shutters and similar) registered in Billericay.
- Superfix Partitions & Ceilings Limited2020
- The UK Fire Curtain Company Limited2024
- Vecta Design UK Ltd2013
- Vincent White Ltd2023
- W. Hardy Limited2002
- Alexander Drylining Limited2012
- B3G (Build) Ltd2021
- Billericay Construction and Flooring Ltd2025
All installation companies (insulation, lifts, shutters and similar) in Billericay · All trades in Billericay · Installers across the UK
Frequently asked questions
When are Strongco Ltd's accounts due?
Strongco Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Strongco Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Strongco Ltd still trading?
Strongco 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 Strongco Ltd do?
Strongco Ltd is registered under Other construction installation (SIC 43290); Other specialised construction activities n.e.c. (SIC 43999); Other engineering activities (SIC 71129).
How old is Strongco Ltd?
Strongco Ltd was incorporated on 1 October 2020, 6 years ago.
What is the penalty if Strongco 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 Strongco 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.