- Companies
- Plumbers and heating engineers
- London
- Instafix London Ltd
Instafix London Ltd
- Company number
- 15411681
- Incorporated
- 15 Jan 20242 years trading
- Registered office
- 60 Windsor Avenue, London, SW19 2RR
- Nature of business
- Plumbing, heat and air-conditioning installation
Instafix London Ltd is a 2-year-old private limited company registered in London, company number 15411681, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 April 2025, as filed at Companies House.
Where Instafix London Ltd is registered
The registered office is in London (SW19), in the Merton local authority area, London. Show SW19 2RR on a map.
Other trade companies in SW19
- Firstfixlondon Ltd.Builders
- Rainbow One Construction UK LtdSpecialist contractors
- Base Bloc LimitedBuilders
- Concealed Climate LimitedPlumbers and heating engineers
- Morningside LtdProperty developers
- Cupi-Building LtdBuilders
- Crown Infra London LtdBuilders
- Aj & Co One LtdProperty developers
Also registered at this address
7 other companies use the same registered office as Instafix London Ltd.
- Ato -Solutions1 LimitedElectricians
- L & P Surveyors LtdSpecialist contractors
- Onyx Concept Bespoke Automotive LimitedMotor traders
- Ordonez Painting LtdPainters and decorators
- Red File Projects LtdProperty developers
- Urban Fox Facilities LtdFacilities management
- Wizfix Heating LtdPlumbers and heating engineers
What happens if Instafix London 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 15411681
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 January 2024 (2 years ago)
- Registered office
- 60 Windsor Avenue, London, SW19 2RR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 14 January 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in London
Other active plumbing and heating companies registered in London.
- Instagasworks Plumbing and Heating Ltd2025
- Instal Systems Ltd2026
- Install Right Boilers Ltd2026
- Instant Heating and Plumbing Services Ltd2021
- Instant Repair Services Limited2025
- Io Construction Design Ltd2026
- Ipd Aquarius Ltd2008
- Ipi Plumbing Ltd2024
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Instafix London Ltd's accounts due?
Instafix London Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Instafix London Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Instafix London Ltd still trading?
Instafix London 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 Instafix London Ltd do?
Instafix London Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Instafix London Ltd?
Instafix London Ltd was incorporated on 15 January 2024, 2 years ago.
What is the penalty if Instafix London 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 Instafix London 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.