- Companies
- Builders
- Carshalton
- Diamond Home Improvements Ltd
Diamond Home Improvements Ltd
- Company number
- 15926199
- Incorporated
- 30 Aug 20242 years trading
- Registered office
- 47C Wrythe Lane, Carshalton, Sutton, SM5 2RL
- Nature of business
- Construction of domestic buildings
Diamond Home Improvements Ltd is a 2-year-old private limited company registered in Carshalton, company number 15926199, one of 104 building contractors in Carshalton. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Who runs and owns Diamond Home Improvements Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| G*** M*** | Director | Aug 2024 |
Person with significant control
Where Diamond Home Improvements Ltd is registered
The registered office is in Carshalton (SM5), in the Sutton local authority area, London. Show SM5 2RL on a map.
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- Rich Detailz LtdMechanics and garages
- Sutton Motor and Garage LtdMechanics and garages
- Ecobuild Plumbing & Heating LtdPlumbers and heating engineers
- Aaircon Services LtdPlumbers and heating engineers
- Perthy Properties (Greenhills) LimitedProperty developers
- Jophp LimitedCleaning companies
- Pro-Type Roofing LtdRoofers
- Mic Cleaning LimitedCleaning companies
What happens if Diamond Home Improvements 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 15926199
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 August 2024 (2 years ago)
- Registered office
- 47C Wrythe Lane, Carshalton, Sutton, SM5 2RL
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 29 August 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Carshalton
Other active building contractors registered in Carshalton.
- Diamond Stone Construction Limited2026
- Diamond1 Constructions Ltd2026
- Dma Building Ltd2025
- Donvas Construction Ltd2019
- DSK Carpentry Ltd2014
- E-Shop Pro Hub Ltd2025
- Ee Building Services Ltd2021
- Ek Ground Specialist Ltd2025
All building contractors in Carshalton · All trades in Carshalton · Builders across the UK
Frequently asked questions
When are Diamond Home Improvements Ltd's accounts due?
Diamond Home Improvements Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Diamond Home Improvements Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Diamond Home Improvements Ltd still trading?
Diamond Home Improvements Ltd is listed as active on the Companies House register (checked 13 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 Diamond Home Improvements Ltd do?
Diamond Home Improvements Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Diamond Home Improvements Ltd?
Diamond Home Improvements Ltd was incorporated on 30 August 2024, 2 years ago.
Who runs Diamond Home Improvements Ltd?
Diamond Home Improvements Ltd has 1 active director, the longest-serving appointed in Aug 2024. Their names and service addresses are on the Companies House register.
Who owns Diamond Home Improvements Ltd?
One person or company has significant control of Diamond Home Improvements Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Diamond Home Improvements 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 Diamond Home Improvements Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.