- Companies
- Electricians
- Enfield
- Zon Tec Systems Ltd
Zon Tec Systems Ltd
- Company number
- 06031629
- Incorporated
- 18 Dec 200619 years trading
- Registered office
- 4 Cypress Avenue, Cypress Avenue Crews Hill, Enfield, Middlesex, EN2 9BZ
- Nature of business
- Electrical installation
Zon Tec Systems Ltd is a 19-year-old private limited company registered in Enfield, company number 06031629, one of 134 electrical contractors in Enfield. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £24K (+162.8%) on the year before, to £39K.
- Current assets of £238K against £202K owed within a year: 1.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £39K | £238K | £202K | 1 | |
| 31 May 2024 | £15K | £244K | £233K | 1 | |
| 31 May 2023 | £11K | £282K | £277K | 1 |
Where Zon Tec Systems Ltd is registered
The registered office is in Enfield (EN2), in the Enfield local authority area, London. Show EN2 9BZ on a map.
Other trade companies in EN2
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- 1901 Bespoke LimitedRepair services
- Allfloors London LtdFloor and wall tilers
- Global Plant and Construction LtdProperty developers
- Bmap LtdFinishing trades
- MK Decorator (London) LtdPainters and decorators
- Cityrise Scaffolding LimitedScaffolders
- Alc Maintenance LtdMachinery repair and installation
What happens if Zon Tec Systems 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 06031629
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 December 2006 (19 years ago)
- Registered office
- 4 Cypress Avenue, Cypress Avenue Crews Hill, Enfield, Middlesex, EN2 9BZ
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 17 November 2025
- Previous names
- Son Tec Systems Ltd (until 10 Jan 2007)
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Enfield
Other active electrical contractors registered in Enfield.
- Zzelectricalservices Ltd2023
- 24 Hour London Electricians Ltd2017
- A&L Electrical London Ltd2014
- Abubax and Co Ltd2026
- Adi. P Electrical Ltd2021
- Aero Red Global Ltd2026
- Ainovate Ltd2026
- Ajy Electrician Ltd2026
All electrical contractors in Enfield · All trades in Enfield · Electricians across the UK
Frequently asked questions
When are Zon Tec Systems Ltd's accounts due?
Zon Tec Systems Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Zon Tec Systems Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Zon Tec Systems Ltd still trading?
Zon Tec Systems 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 Zon Tec Systems Ltd do?
Zon Tec Systems Ltd is registered under Electrical installation (SIC 43210).
How old is Zon Tec Systems Ltd?
Zon Tec Systems Ltd was incorporated on 18 December 2006, 19 years ago.
What is the penalty if Zon Tec Systems 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 Zon Tec Systems 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.