- Companies
- Specialist contractors
- London
- Zerezek Limited
Zerezek Limited
- Company number
- 13588449
- Incorporated
- 26 Aug 20215 years trading
- Registered office
- 17 Green Lanes, London, N16 9BS
- Nature of business
- Other specialised construction activities n.e.c.; Information technology consultancy activities; Other information technology service activities; Other professional, scientific and technical activities n.e.c.
Zerezek Limited is a 5-year-old private limited company registered in London, company number 13588449, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £8,334 on the year before, to £8,736.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £14K against £5,395 owed within a year: 2.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £8,736 | £9,990 | £14K | £5,395 | 1 |
| 31 Aug 2024 | £402 | £2,480 | £2,800 | £2,398 | 1 |
| 31 Aug 2023 | £363 | £3,545 | £3,545 | £3,182 | 1 |
| 31 Aug 2022 | £261 | £205 | £6,005 | £5,744 | 1 |
Where Zerezek Limited is registered
The registered office is in London (N16), in the Islington local authority area, London. Show N16 9BS on a map.
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Shared registered office
61 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 Zerezek Limited 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 13588449
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 August 2021 (5 years ago)
- Registered office
- 17 Green Lanes, London, N16 9BS
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Information technology consultancy activities (SIC 62020)
Other information technology service activities (SIC 62090)
Other professional, scientific and technical activities n.e.c. (SIC 74909) - Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 3 September 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- Zerozerostone Ltd2018
- Zetaquantic UK Ltd2025
- Zetbuilders Ltd2025
- ZG Decorating Specialists Limited2009
- Ziggy Boys Construction Ltd2015
- Zinc and Copper London Metal Roofing Ltd2024
- Zipfix Construction Limited2017
- ZJB Scenic Services Ltd2021
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Frequently asked questions
When are Zerezek Limited's accounts due?
Zerezek Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Zerezek Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Zerezek Limited still trading?
Zerezek Limited 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 Zerezek Limited do?
Zerezek Limited is registered under Other specialised construction activities n.e.c. (SIC 43999); Information technology consultancy activities (SIC 62020); Other information technology service activities (SIC 62090); Other professional, scientific and technical activities n.e.c. (SIC 74909).
How old is Zerezek Limited?
Zerezek Limited was incorporated on 26 August 2021, 5 years ago.
What is the penalty if Zerezek Limited 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 Zerezek Limited 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.