- Companies
- Electricians
- Sunbury-on-Thames
- Onyx Electrical Installations Ltd
Onyx Electrical Installations Ltd
- Company number
- 17035127
- Incorporated
- 16 Feb 2026
- Registered office
- 25 Claremont Avenue, Sunbury-on-Thames, TW16 5LX
- Nature of business
- Electrical installation
Onyx Electrical Installations Ltd is a newly incorporated private limited company registered in Sunbury-on-Thames, company number 17035127, one of 15 electrical contractors in Sunbury-on-Thames. Its next accounts are due at Companies House on 16 November 2027, and its first CT600 is due at HMRC on 15 February 2028.
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.
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Where Onyx Electrical Installations Ltd is registered
The registered office is in Sunbury-on-Thames (TW16), in the Spelthorne local authority area, South East. Show TW16 5LX on a map.
Other trade companies in TW16
- Top Lodge LtdProperty developers
- Sajaha Properties LimitedProperty developers
- Cineco Holdings LimitedSpecialist contractors
- Keyturn Clean LtdCleaning companies
- VM Conservatory Transformation LtdBuilders
- Nova Property Solutions LtdPainters and decorators
- Lee’S Home Improvements LtdBuilders
- Rapid Home Srvices LtdFinishing trades
Also registered at this address
11 other companies use the same registered office as Onyx Electrical Installations Ltd.
- Barrass Electrical Services LtdElectricians
- Caterply LimitedFinishing trades
- Electrical Cable Installation LimitedElectricians
- Gas Fix 2.0 LtdPlumbers and heating engineers
- JC'S Quality Consulting LtdPlumbers and heating engineers
- MK3 Services LtdFinishing trades
- Riverside Windows LtdSpecialist contractors
- SJC Plumbing & Heating LimitedPlumbers and heating engineers
- Sparks Eletrical LimitedElectricians
- Spence Heating LimitedPlumbers and heating engineers
- TR Building Contractors LtdFinishing trades
What happens if Onyx Electrical Installations 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 16 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 17 Nov 2027 to 16 Dec 2027 | £150 |
| 1 to 3 months late | 17 Dec 2027 to 16 Feb 2028 | £375 |
| 3 to 6 months late | 17 Feb 2028 to 16 May 2028 | £750 |
| More than 6 months late | From 17 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 17035127
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 February 2026
- Registered office
- 25 Claremont Avenue, Sunbury-on-Thames, TW16 5LX
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
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 Sunbury-on-Thames
Other active electrical contractors registered in Sunbury-on-Thames.
- PK Electrical Services Ltd2018
- Roundhouse Electrical Ltd2021
- Safe Hand Property Care Ltd2026
- Singh Electricals Refrigeration Service Ltd2026
- Sparks Eletrical Limited2016
- Arc8 Limited2024
- Barrass Electrical Services Ltd2014
- Blackout Electrics Ltd2026
All electrical contractors in Sunbury-on-Thames · All trades in Sunbury-on-Thames · Electricians across the UK
Frequently asked questions
When are Onyx Electrical Installations Ltd's accounts due?
Onyx Electrical Installations Ltd's next accounts are due at Companies House by 16 November 2027 (in 400 days), covering the period to 28 February 2027.
When is Onyx Electrical Installations 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 15 February 2027, due by 15 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Onyx Electrical Installations Ltd still trading?
Onyx Electrical Installations 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 Onyx Electrical Installations Ltd do?
Onyx Electrical Installations Ltd is registered under Electrical installation (SIC 43210).
How old is Onyx Electrical Installations Ltd?
Onyx Electrical Installations Ltd was incorporated on 16 February 2026, less than a year ago.
What is the penalty if Onyx Electrical Installations 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 Onyx Electrical Installations 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.