- Companies
- Finishing trades
- London
- Probuiltz Ltd
Probuiltz Ltd
- Company number
- 11759820
- Incorporated
- 10 Jan 20197 years trading
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Other building completion and finishing
Probuiltz Ltd is a 7-year-old private limited company registered in London, company number 11759820, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £256 (+88%) on the year before, to £547.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £16K against £12K owed within a year: 1.3 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £547 | £3,055 | £16K | £12K | 1 |
| 31 Jan 2024 | £291 | £614 | £18K | £8,267 | 1 |
| 31 Jan 2023 | £16K | £4,510 | £40K | £15K | 1 |
| 31 Jan 2022 | -£12K | £255 | £25K | £25K | 1 |
| 31 Jan 2021 | -£12K | £9,367 | £9,367 | £6,464 | 1 |
| 31 Jan 2020 | £5,247 | £6,925 | £9,676 | £4,429 | 3 |
Where Probuiltz 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 Probuiltz 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 11759820
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 January 2019 (7 years ago)
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 8 January 2026
- Previous names
- Zerja Contractors Ltd (until 17 Sep 2025)
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- Procare Maintenance Ltd2023
- Procare Property Services Limited2026
- Produk Limited2006
- Project Build Specialist Ltd2025
- Project Construction Southern Limited2012
- Project Link Group Ltd2026
- Pronext Property Services Ltd2026
- Proof & Protect Ltd2025
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Probuiltz Ltd's accounts due?
Probuiltz Ltd's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is Probuiltz Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Probuiltz Ltd still trading?
Probuiltz 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 Probuiltz Ltd do?
Probuiltz Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Probuiltz Ltd?
Probuiltz Ltd was incorporated on 10 January 2019, 7 years ago.
What is the penalty if Probuiltz 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 Probuiltz 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.