- Companies
- Installers
- Mitcham
- Alex Dosaru Construction Ltd
Alex Dosaru Construction Ltd
- Company number
- 14983635
- Incorporated
- 5 Jul 20233 years trading
- Registered office
- 26 Friday Road, Mitcham, CR4 3JQ
- Nature of business
- Other construction installation
Alex Dosaru Construction Ltd is a 3-year-old private limited company registered in Mitcham, company number 14983635, one of 37 installation companies (insulation, lifts, shutters and similar) in Mitcham. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £2,416 (-66.4%) on the year before, to £1,224.
- Current assets of £11K against £9,522 owed within a year: 1.1 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1,224 | £11K | £9,522 | 2 | |
| 31 Jul 2024 | £3,640 | £21K | £17K | 2 |
Where Alex Dosaru Construction Ltd is registered
The registered office is in Mitcham (CR4), in the Merton local authority area, London. Show CR4 3JQ on a map.
Other trade companies in CR4
- Mendevo LimitedFloor and wall tilers
- Az Auto Body Repair LtdMechanics and garages
- Welcome Maintenance LimitedPainters and decorators
- Fixmot LtdMechanics and garages
- MPB Property Care LtdFinishing trades
- Aoo Building Services LtdBuilders
- LDN Plumbing Heating and Cooling LimitedPlumbers and heating engineers
- Dgha Construction LtdBuilders
What happens if Alex Dosaru Construction 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 14983635
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 July 2023 (3 years ago)
- Registered office
- 26 Friday Road, Mitcham, CR4 3JQ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 4 July 2025
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 Mitcham
Other active installation companies (insulation, lifts, shutters and similar) registered in Mitcham.
- Bushby Builders Ltd2023
- Candiotto Solutions Ltd2025
- Carlos Serrao Building Services Limited2006
- Claz Building Limited2019
- Coonan Concrete Pumping Limited2001
- Eaman Building Services Limited2019
- G&P Facades Limited2025
- Grand Finish Ltd2012
All installation companies (insulation, lifts, shutters and similar) in Mitcham · All trades in Mitcham · Installers across the UK
Frequently asked questions
When are Alex Dosaru Construction Ltd's accounts due?
Alex Dosaru Construction Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Alex Dosaru Construction Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Alex Dosaru Construction Ltd still trading?
Alex Dosaru Construction 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 Alex Dosaru Construction Ltd do?
Alex Dosaru Construction Ltd is registered under Other construction installation (SIC 43290).
How old is Alex Dosaru Construction Ltd?
Alex Dosaru Construction Ltd was incorporated on 5 July 2023, 3 years ago.
What is the penalty if Alex Dosaru Construction 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 Alex Dosaru Construction 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.