- Companies
- Plumbers and heating engineers
- London
- Just Fix Ltd
Just Fix Ltd
- Company number
- 12819875
- Incorporated
- 18 Aug 20206 years trading
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Plumbing, heat and air-conditioning installation; Other building completion and finishing; Other specialised construction activities n.e.c.; Other information technology service activities
Just Fix Ltd is a 6-year-old private limited company registered in London, company number 12819875, one of 2,972 plumbing and heating companies in London. Companies House shows its accounts as overdue: they were due on 30 September 2026.
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 £1.9M (-698.5%) on the year before, to -£2.2M.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £443K against £1.1M owed within a year: 0.4 times cover.
- 7 employees on average, up from 5 the year before.
- Balance sheets on record for 4 years, 2021 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | -£2.2M | £0 | £443K | £1.1M | 7 |
| 31 Dec 2023 | -£272K | £9,328 | £232K | £445K | 5 |
| 31 Dec 2022 | £93K | £4,565 | £109K | £104K | 3 |
| 31 Dec 2021 | -£66K | £82K | £107K | £174K | 0 |
Where Just Fix Ltd is registered
The registered office is in London (EC1V), in the Islington local authority area, London. Show EC1V 2NX on a map.
Other trade companies in EC1V
- Cardiff Electrical Solutions LtdElectricians
- Edemis Construction LtdBuilders
- Zaylan LtdProperty developers
- Pronto Roofing and Construction LtdRoofers
- Instal Systems LtdPlumbers and heating engineers
- J&R Partners LtdBuilders
- The Tile Craft LtdFinishing trades
- Cathal Od Solutions LtdSpecialist contractors
Shared registered office
2,436 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Just Fix Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 12819875
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 August 2020 (6 years ago)
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other building completion and finishing (SIC 43390)
Other specialised construction activities n.e.c. (SIC 43999)
Other information technology service activities (SIC 62090) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 17 August 2025
- Charges (mortgages)
- 2 outstanding of 2 registered
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.
- Just Pro Ltd2026
- Just Services Group Ltd2016
- Jy Plumbing & Heating Limited2025
- JZ Precision Plumbing Limited2023
- K and O Gas and Heating Ltd2020
- K E Engineering Solution Ltd2012
- K Energy Solutions Limited2025
- K O'Donnell Mechanical Limited2024
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Just Fix Ltd's accounts due?
Just Fix Ltd's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Just Fix Ltd's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is Just Fix Ltd still trading?
Just Fix Ltd is listed as active on the Companies House register (checked 13 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 Just Fix Ltd do?
Just Fix Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other building completion and finishing (SIC 43390); Other specialised construction activities n.e.c. (SIC 43999); Other information technology service activities (SIC 62090).
How old is Just Fix Ltd?
Just Fix Ltd was incorporated on 18 August 2020, 6 years ago.
What is the penalty if Just Fix 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 Just Fix Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.