- Companies
- Machinery repair and installation
- London
- Mayfair Safety Group Ltd
Mayfair Safety Group Ltd
- Company number
- 17301876
- Incorporated
- 25 Jun 2026
- Registered office
- Siu Office, Unit A1221, 4-6 Greatorex Street, London, E1 5NF
- Nature of business
- Repair of electrical equipment; Technical testing and analysis; Other professional, scientific and technical activities n.e.c.; Fire service activities
Mayfair Safety Group Ltd is a newly incorporated private limited company registered in London, company number 17301876, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 25 March 2028, and its first CT600 is due at HMRC on 24 June 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 Mayfair Safety Group Ltd is registered
The registered office is in London (E1), in the Tower Hamlets local authority area, London. Show E1 5NF on a map.
Other trade companies in E1
- Safa Builds LtdElectricians
- Ribh LtdElectricians
- Tyres on Call LtdMechanics and garages
- Hrautosources LtdMotor traders
- Choiceworks LimitedInstallers
- E.M Construction London LtdBuilders
- Qubic Maintenance LtdSpecialist contractors
- Moovin Transport LtdMechanics and garages
What happens if Mayfair Safety Group 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 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 Mar 2028 to 25 Apr 2028 | £150 |
| 1 to 3 months late | 26 Apr 2028 to 25 Jun 2028 | £375 |
| 3 to 6 months late | 26 Jun 2028 to 25 Sep 2028 | £750 |
| More than 6 months late | From 26 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 17301876
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 June 2026
- Registered office
- Siu Office, Unit A1221, 4-6 Greatorex Street, London, E1 5NF
- Nature of business
- Repair of electrical equipment (SIC 33140)
Technical testing and analysis (SIC 71200)
Other professional, scientific and technical activities n.e.c. (SIC 74909)
Fire service activities (SIC 84250) - Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in London
Other active machinery repair and installation companies registered in London.
- MB Cinema Services Ltd2026
- MB Electrical Experts Ltd2025
- McEwan Rail Services Limited2025
- MCK Avi Ltd2023
- McValiant Technic Co. Limited2019
- MD Ahmod Store Ltd2022
- Mdirect Limited2011
- MDK Environmental Technology Ltd.2014
All machinery repair and installation companies in London · All trades in London · Machinery repair and installation across the UK
Frequently asked questions
When are Mayfair Safety Group Ltd's accounts due?
Mayfair Safety Group Ltd's next accounts are due at Companies House by 25 March 2028 (in 529 days), covering the period to 30 June 2027.
When is Mayfair Safety Group 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 June 2027, due by 24 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mayfair Safety Group Ltd still trading?
Mayfair Safety Group 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 Mayfair Safety Group Ltd do?
Mayfair Safety Group Ltd is registered under Repair of electrical equipment (SIC 33140); Technical testing and analysis (SIC 71200); Other professional, scientific and technical activities n.e.c. (SIC 74909); Fire service activities (SIC 84250).
How old is Mayfair Safety Group Ltd?
Mayfair Safety Group Ltd was incorporated on 25 June 2026, less than a year ago.
What is the penalty if Mayfair Safety Group 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 Mayfair Safety Group 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.