- Companies
- Installers
- London
- Installux Limited
Installux Limited
- Company number
- 11609332
- Incorporated
- 8 Oct 20188 years trading
- Registered office
- Apertment 54, 7 Thorney Street, London, SW1P 4FG
- Nature of business
- Other construction installation; Other building completion and finishing
Installux Limited is a 8-year-old private limited company registered in London, company number 11609332, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. 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 up £23K (+103.4%) on the year before, to £768.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £29K against £19K owed within a year: 1.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £768 | £29K | £19K | 1 | |
| 31 Oct 2024 | -£23K | £2,478 | £6,339 | 1 | |
| 31 Oct 2023 | -£21K | -£2,070 | £7,358 | 1 | |
| 31 Oct 2022 | -£20K | £4,648 | 1 | ||
| 31 Oct 2021 | -£9,892 | £4,737 | £16K | 1 | |
| 31 Oct 2020 | £1,993 | £4,898 | £7,202 | £12K | 1 |
| 31 Oct 2019 | £1 | £1 | £1 | 0 |
Where Installux Limited is registered
The registered office is in London (SW1P), in the Westminster local authority area, London. Show SW1P 4FG on a map.
Other trade companies in SW1P
- Smro Properties LtdElectricians
- RX9 Management Services LimitedProperty developers
- Domi UK Builders LtdBuilders
- JMZ Construction LtdJoiners and carpenters
- Global Logistics Corporation LtdSpecialist contractors
- Vire Stewardship LtdProperty developers
- Edyy LtdFinishing trades
- Freshkey Property & Cleaning LtdCleaning companies
What happens if Installux Limited 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
- 11609332
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 October 2018 (8 years ago)
- Registered office
- Apertment 54, 7 Thorney Street, London, SW1P 4FG
- Nature of business
- Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390) - Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 7 October 2025
- Previous names
- Interior Solutions V Ltd (until 12 Aug 2019)
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 London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Insulating Homes Ltd2019
- Insulation Laggers Ltd2025
- Insulpro Roofing Limited2025
- Integra Doors Ltd2026
- Integrated Facilities Ltd2020
- Integrity Golden Mountain Properties Ltd2021
- Interiors Managed Solutions Ltd2010
- Interlink Construction Ltd2019
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Installux Limited's accounts due?
Installux Limited's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Installux Limited'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 Installux Limited still trading?
Installux Limited 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 Installux Limited do?
Installux Limited is registered under Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390).
How old is Installux Limited?
Installux Limited was incorporated on 8 October 2018, 8 years ago.
What is the penalty if Installux Limited 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 Installux Limited 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.