- Companies
- Finishing trades
- Hayes
- Converting London Limited
Converting London Limited
- Company number
- 12285659
- Incorporated
- 28 Oct 20196 years trading
- Registered office
- 364 High Street, Harlington, Hayes, Middlesex, UB3 5LF
- Nature of business
- Other building completion and finishing
Converting London Limited is a 6-year-old private limited company registered in Hayes, company number 12285659, one of 112 building finishing companies in Hayes. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Converting London Limited is registered
The registered office is in Hayes (UB3), in the Hillingdon local authority area, London. Show UB3 5LF on a map.
Other trade companies in UB3
- Rennove LimitedProperty developers
- KSJ Design & Build LtdBuilders
- KCRQ LimitedCleaning companies
- HKR Roofing LtdRoofers
- Syg Development Group LtdProperty developers
- Ironspan Industrial Services LtdMachinery repair and installation
- RK9 LimitedBuilders
- Elite Construction and Roofing LimitedBuilders
Also registered at this address
10 other companies use the same registered office as Converting London Limited.
- Air Cargo Services LimitedMachinery repair and installation
- City Plant Displays LimitedLandscapers and gardeners
- Custom Metal Roofing LimitedRoofers
- Humes Avenue Garage LimitedMechanics and garages
- Imperial Plumbing and Heating LimitedPlumbers and heating engineers
- Maxglow (Hayes) LimitedPlumbers and heating engineers
- Mli Refurb LimitedSpecialist contractors
- Prime Auto Glazing LimitedMechanics and garages
- Tad Sargent Reupholstery LimitedRepair services
- Windermere Control Systems LimitedSpecialist contractors
What happens if Converting 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 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
- 12285659
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 October 2019 (6 years ago)
- Registered office
- 364 High Street, Harlington, Hayes, Middlesex, UB3 5LF
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 27 October 2025
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Hayes
Other active building finishing companies registered in Hayes.
- Conway Plastic Ltd2025
- Dev Shutter and Shopfronts Ltd2019
- DJ Roofing Hayes Ltd2018
- DK Building & Decorating Contractor Ltd2017
- Dorchester Homes London Ltd2012
- DRK Construction Ltd2017
- Durable Build Construction Limited2022
- E&K Developments Ltd2026
All building finishing companies in Hayes · All trades in Hayes · Finishing trades across the UK
Frequently asked questions
When are Converting London Limited's accounts due?
Converting London Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Converting London Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Converting London Limited still trading?
Converting 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 Converting London Limited do?
Converting London Limited is registered under Other building completion and finishing (SIC 43390).
How old is Converting London Limited?
Converting London Limited was incorporated on 28 October 2019, 6 years ago.
What is the penalty if Converting 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 Converting 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.