- Companies
- Electricians
- Carshalton
- Ozone Controls Ltd
Ozone Controls Ltd
- Company number
- 16342712
- Incorporated
- 25 Mar 20251 year trading
- Registered office
- Unit 1, Aultone Way, Carshalton, SM5 2LH
- Nature of business
- Electrical installation
Ozone Controls Ltd is a 1-year-old private limited company registered in Carshalton, company number 16342712, one of 33 electrical contractors in Carshalton. Its next accounts are due at Companies House on 25 December 2026, and its first CT600 is due at HMRC on 24 March 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Ozone Controls Ltd is registered
The registered office is in Carshalton (SM5), in the Sutton local authority area, London. Show SM5 2LH on a map.
Other trade companies in SM5
- Rich Detailz LtdMechanics and garages
- Sutton Motor and Garage LtdMechanics and garages
- Ecobuild Plumbing & Heating LtdPlumbers and heating engineers
- Aaircon Services LtdPlumbers and heating engineers
- Perthy Properties (Greenhills) LimitedProperty developers
- Jophp LimitedCleaning companies
- Pro-Type Roofing LtdRoofers
- Mic Cleaning LimitedCleaning companies
What happens if Ozone Controls 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 25 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 Dec 2026 to 25 Jan 2027 | £150 |
| 1 to 3 months late | 26 Jan 2027 to 25 Mar 2027 | £375 |
| 3 to 6 months late | 26 Mar 2027 to 25 Jun 2027 | £750 |
| More than 6 months late | From 26 Jun 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
- 16342712
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 March 2025 (1 year ago)
- Registered office
- Unit 1, Aultone Way, Carshalton, SM5 2LH
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 24 March 2026
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 Carshalton
Other active electrical contractors registered in Carshalton.
- Prime Ignition Ltd2012
- R C Electricool Limited2024
- R-Tec Services Ltd.2008
- S K Electrical London Ltd2017
- SGS Electrical & Building Services Limited2021
- Smart Electrical Av Solutions Ltd2013
- Sparky & Wire Ltd2024
- Spi-Tek Electrical Services Limited2017
All electrical contractors in Carshalton · All trades in Carshalton · Electricians across the UK
Frequently asked questions
When are Ozone Controls Ltd's accounts due?
Ozone Controls Ltd's next accounts are due at Companies House by 25 December 2026 (in 73 days), covering the period to 31 March 2026.
When is Ozone Controls Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 24 March 2026, due by 24 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ozone Controls Ltd still trading?
Ozone Controls 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 Ozone Controls Ltd do?
Ozone Controls Ltd is registered under Electrical installation (SIC 43210).
How old is Ozone Controls Ltd?
Ozone Controls Ltd was incorporated on 25 March 2025, 1 year ago.
What is the penalty if Ozone Controls 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 Ozone Controls 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.