- Companies
- Installers
- Enfield
- MRT Windows London Limited
MRT Windows London Limited
- Company number
- 16786185
- Incorporated
- 15 Oct 2025
- Registered office
- 554 Hertford Road, Enfield, EN3 5ST
- Nature of business
- Other construction installation
MRT Windows London Limited is a newly incorporated private limited company registered in Enfield, company number 16786185, one of 55 installation companies (insulation, lifts, shutters and similar) in Enfield. Its next accounts are due at Companies House on 15 July 2027, and its first CT600 is due at HMRC on 14 October 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 MRT Windows London Limited is registered
The registered office is in Enfield (EN3), in the Enfield local authority area, London. Show EN3 5ST on a map.
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Also registered at this address
21 other companies use the same registered office as MRT Windows London Limited.
- Au Decorating LimitedPainters and decorators
- Azelle LimitedBuilders
- Celik Construction LtdBuilders
- Cover Cars LtdMotor traders
- Done Construction Services LtdProperty developers
- Gillys Clearance Crew LimitedCleaning companies
- Iyd Investments LimitedProperty developers
- JNH Build LtdElectricians
- Maram LtdBuilders
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- MT01 LtdBuilders
- Ocean's Ventilation Cleaning Service LtdCleaning companies
- Paylat LtdCleaning companies
- Pico Cars LtdMotor traders
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- S.U Electrical LimitedElectricians
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What happens if MRT Windows London Limited 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 15 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 16 Jul 2027 to 15 Aug 2027 | £150 |
| 1 to 3 months late | 16 Aug 2027 to 15 Oct 2027 | £375 |
| 3 to 6 months late | 16 Oct 2027 to 15 Jan 2028 | £750 |
| More than 6 months late | From 16 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16786185
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 October 2025
- Registered office
- 554 Hertford Road, Enfield, EN3 5ST
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Enfield
Other active installation companies (insulation, lifts, shutters and similar) registered in Enfield.
- Ninova UK Ltd2025
- North London Wooden Stairs Ltd2023
- NTK Trade Windows Limited2025
- Obbj Ltd2026
- Priority Fire and Electrical Limited2002
- Prolec Refurbishments Limited2006
- Right M&E Ltd2018
- Rooftop Rooms Limited2004
All installation companies (insulation, lifts, shutters and similar) in Enfield · All trades in Enfield · Installers across the UK
Frequently asked questions
When are MRT Windows London Limited's accounts due?
MRT Windows London Limited's next accounts are due at Companies House by 15 July 2027 (in 275 days), covering the period to 31 October 2026.
When is MRT Windows London Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 14 October 2026, due by 14 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is MRT Windows London Limited still trading?
MRT Windows London Limited 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 MRT Windows London Limited do?
MRT Windows London Limited is registered under Other construction installation (SIC 43290).
How old is MRT Windows London Limited?
MRT Windows London Limited was incorporated on 15 October 2025, less than a year ago.
What is the penalty if MRT Windows London Limited 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 MRT Windows London Limited 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.