- Companies
- Electricians
- Harpenden
- Av-Zone Limited
Av-Zone Limited
- Company number
- 04960059
- Incorporated
- 11 Nov 200322 years trading
- Registered office
- C/O Maidment Judd Charter House Marlborough Park, Southdown Road, Harpenden, AL5 1NL
- Nature of business
- Electrical installation
Av-Zone Limited is a 22-year-old private limited company registered in Harpenden, company number 04960059, one of 22 electrical contractors in Harpenden. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Av-Zone LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £134 (+46.5%) on the year before, to £422.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £8,127 against £7,768 owed within a year: 1.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £422 | £1,372 | £8,127 | £7,768 | 0 |
| 31 Oct 2024 | £288 | £9,032 | £15K | £11K | 2 |
| 31 Oct 2023 | -£6,704 | £1,664 | £7,284 | £11K | 2 |
| 31 Oct 2022 | £1,947 | £19K | £25K | £21K | 2 |
| 31 Oct 2021 | £9,291 | £26K | £30K | £19K | 2 |
| 31 Oct 2020 | £2,952 | £18K | £19K | £16K | 2 |
| 31 Oct 2019 | £280 | £8,501 | £12K | £12K | |
| 31 Oct 2018 | £605 | £7,043 | £11K | £11K | |
| 31 Oct 2017 | £552 | £5,005 | £9,847 | £9,751 | |
| 31 Oct 2016 | £81 | £5 | £9,362 | £11K |
Who runs and owns Av-Zone Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| R*** A*** | Director | Nov 2003 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| C*** F*** | Secretary | Nov 2003 | Nov 2009 |
People with significant control (2)
Where Av-Zone Limited is registered
The registered office is in Harpenden (AL5), in the St Albans local authority area, East of England. Show AL5 1NL on a map.
Other trade companies in AL5
- M&T Building Services LimitedBuilders
- Rolfe Groundworks LtdGroundworks and demolition
- Rolls and Sons LtdProperty developers
- WM Holdings Group LtdProperty developers
- A Hussain Motor Group LtdMotor traders
- Harpenden Window Cleaning LtdCleaning companies
- Honey Bear Energy LimitedPlumbers and heating engineers
- M&D Paving LtdCivil engineering
What happens if Av-Zone 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 04960059
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 November 2003 (22 years ago)
- Registered office
- C/O Maidment Judd Charter House Marlborough Park, Southdown Road, Harpenden, AL5 1NL
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 12 May 2026
- Previous names
- Technosound Systems Limited (until 26 Feb 2009)
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 Harpenden
Other active electrical contractors registered in Harpenden.
- Bailey's Electrical Company Ltd2020
- Ces Electrical Ltd2008
- Deeks Electrical Contractors Limited1983
- Deeks Renewables Limited2024
- Harpenden Electrical Limited2006
- Harpenden Lighting Design Company Ltd2020
- Homexe Ltd2021
- Jinwoo Property Services Limited2015
All electrical contractors in Harpenden · All trades in Harpenden · Electricians across the UK
Frequently asked questions
When are Av-Zone Limited's accounts due?
Av-Zone Limited's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Av-Zone Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Av-Zone Limited still trading?
Av-Zone 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 Av-Zone Limited do?
Av-Zone Limited is registered under Electrical installation (SIC 43210).
How old is Av-Zone Limited?
Av-Zone Limited was incorporated on 11 November 2003, 22 years ago.
Who runs Av-Zone Limited?
Av-Zone Limited has 1 active director, the longest-serving appointed in Nov 2003. Their names and service addresses are on the Companies House register.
Who owns Av-Zone Limited?
2 people or companies have significant control of Av-Zone Limited: an individual (owns 25% to 50% of the shares); an individual (owns 75% or more of the shares).
What is the penalty if Av-Zone 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 Av-Zone 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.