- Companies
- Electricians
- London
- Protec(UK) Ltd
Protec(UK) Ltd
- Company number
- 16852740
- Incorporated
- 13 Nov 2025
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Electrical installation
Protec(UK) Ltd is a newly incorporated private limited company registered in London, company number 16852740, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 13 August 2027, and its first CT600 is due at HMRC on 12 November 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.
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Where Protec(UK) Ltd is registered
The registered office is in London (N1), in the Hackney local authority area, London. Show N1 7GU on a map.
Other trade companies in N1
- Tagwise LtdSpecialist contractors
- Sphere Aviation Solutions UK LtdMachinery repair and installation
- Get IT Done Builders LtdJoiners and carpenters
- Evolution Products LimitedMotor traders
- Fleetstone Trading LtdMotor traders
- Kenneth Brady LtdElectricians
- UK Import Export LtdBuilders
- Magic Door Services LimitedMachinery repair and installation
Shared registered office
1,583 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 Protec(UK) 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 13 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 14 Aug 2027 to 13 Sep 2027 | £150 |
| 1 to 3 months late | 14 Sep 2027 to 13 Nov 2027 | £375 |
| 3 to 6 months late | 14 Nov 2027 to 13 Feb 2028 | £750 |
| More than 6 months late | From 14 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16852740
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 November 2025
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 November (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 London
Other active electrical contractors registered in London.
- Protech Electrics Service Ltd2022
- Proton Contractor Ltd2018
- Proton Electrics Ltd2023
- Providence Maintenance Ltd2023
- Provision Energy Ltd2025
- Prowago Ltd2016
- PS Electrical Ltd2023
- PSJ Contractors Ltd2022
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Protec(UK) Ltd's accounts due?
Protec(UK) Ltd's next accounts are due at Companies House by 13 August 2027 (in 305 days), covering the period to 30 November 2026.
When is Protec(UK) 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 12 November 2026, due by 12 November 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Protec(UK) Ltd still trading?
Protec(UK) 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 Protec(UK) Ltd do?
Protec(UK) Ltd is registered under Electrical installation (SIC 43210).
How old is Protec(UK) Ltd?
Protec(UK) Ltd was incorporated on 13 November 2025, less than a year ago.
What is the penalty if Protec(UK) 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 Protec(UK) 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.