- Companies
- Electricians
- Welwyn Garden City
- Pentacle Electrical and Security Ltd
Pentacle Electrical and Security Ltd
- Company number
- 15430834
- Incorporated
- 22 Jan 20242 years trading
- Registered office
- 41 Salisbury Road, Welwyn Garden City, AL7 3RR
- Nature of business
- Electrical installation; Security systems service activities
Pentacle Electrical and Security Ltd is a 2-year-old private limited company registered in Welwyn Garden City, company number 15430834, one of 50 electrical contractors in Welwyn Garden City. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 January 2025, as filed at Companies House.
Where Pentacle Electrical and Security Ltd is registered
The registered office is in Welwyn Garden City (AL7), in the Welwyn Hatfield local authority area, East of England. Show AL7 3RR on a map.
Other trade companies in AL7
- Mechanicalwise LtdInstallers
- Azalea Services LimitedSpecialist contractors
- Malmech and Mannion LimitedMechanics and garages
- T&D Construction Group LtdFinishing trades
- Vertec Roofing and Building LtdRoofers
- Selectlane LtdMotor traders
- Af Pressure Washing LtdCleaning companies
- Jet Professional LtdCleaning companies
What happens if Pentacle Electrical and Security 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 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 15430834
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 January 2024 (2 years ago)
- Registered office
- 41 Salisbury Road, Welwyn Garden City, AL7 3RR
- Nature of business
- Electrical installation (SIC 43210)
Security systems service activities (SIC 80200) - Year end
- 31 January (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 20 January 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 Welwyn Garden City
Other active electrical contractors registered in Welwyn Garden City.
- Phoenix Total Security Limited1996
- Pronet Installations Ltd2025
- Rad Electrical Solutions Ltd2023
- Sas Plumbing Heating & Electrical Ltd2019
- Sentrilink Security Ltd2026
- Sloansway Limited2009
- SM Builders & Electricians Ltd2024
- Spear Electrical (London) Ltd2016
All electrical contractors in Welwyn Garden City · All trades in Welwyn Garden City · Electricians across the UK
Frequently asked questions
When are Pentacle Electrical and Security Ltd's accounts due?
Pentacle Electrical and Security Ltd's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is Pentacle Electrical and Security Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Pentacle Electrical and Security Ltd still trading?
Pentacle Electrical and Security 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 Pentacle Electrical and Security Ltd do?
Pentacle Electrical and Security Ltd is registered under Electrical installation (SIC 43210); Security systems service activities (SIC 80200).
How old is Pentacle Electrical and Security Ltd?
Pentacle Electrical and Security Ltd was incorporated on 22 January 2024, 2 years ago.
What is the penalty if Pentacle Electrical and Security 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 Pentacle Electrical and Security 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.