- Company number
- 12761153
- Incorporated
- 22 Jul 20206 years trading
- Registered office
- Office 9, Dalton House, 60 Windsor Avenue, London, SW19 2RR
- Nature of business
- Construction of commercial buildings; Other building completion and finishing; Architectural activities
Qgemix Ltd is a 6-year-old private limited company registered in London, company number 12761153, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 down £12K (-39.4%) on the year before, to £19K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £52K against £35K owed within a year: 1.5 times cover.
- 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 Jul 2025 | £19K | £2,699 | £52K | £35K | 1 |
| 31 Jul 2024 | £31K | £5,407 | £44K | £16K | 1 |
| 31 Jul 2023 | £27K | £9,536 | £38K | £15K | 1 |
| 31 Jul 2022 | £6,903 | £5,518 | £16K | £14K | 1 |
| 31 Jul 2021 | £210 | £3,924 | £8,512 | £8,843 | 1 |
Where Qgemix 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
Shared registered office
34 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 Qgemix 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 12761153
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 July 2020 (6 years ago)
- Registered office
- Office 9, Dalton House, 60 Windsor Avenue, London, SW19 2RR
- Nature of business
- Construction of commercial buildings (SIC 41201)
Other building completion and finishing (SIC 43390)
Architectural activities (SIC 71111) - Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 25 June 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in London
Other active building contractors registered in London.
- QJSS Contractor Ltd2025
- QRS Builders Ltd2023
- QSS & Maas Ltd2024
- Quadlis Ltd2015
- Quadrangle Construction Ltd2018
- Quadshine Polishing Ltd2026
- Qualent Limited2025
- Qualion Construction Group Ltd2022
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Qgemix Ltd's accounts due?
Qgemix Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Qgemix Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Qgemix Ltd still trading?
Qgemix 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 Qgemix Ltd do?
Qgemix Ltd is registered under Construction of commercial buildings (SIC 41201); Other building completion and finishing (SIC 43390); Architectural activities (SIC 71111).
How old is Qgemix Ltd?
Qgemix Ltd was incorporated on 22 July 2020, 6 years ago.
What is the penalty if Qgemix 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 Qgemix 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.