- Company number
- 15836650
- Incorporated
- 12 Jul 20242 years trading
- Registered office
- 8 Holmlea Road, Datchet, Slough, SL3 9HQ
- Nature of business
- Roofing activities
Diamond Roofing & Building Specialists Ltd is a 2-year-old private limited company registered in Slough, company number 15836650, one of 47 roofing companies in Slough. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 July 2025, as filed at Companies House.
Where Diamond Roofing & Building Specialists Ltd is registered
The registered office is in Slough (SL3), in the Windsor and Maidenhead local authority area, South East. Show SL3 9HQ on a map.
Other trade companies in SL3
- Tac Design & Build LtdFinishing trades
- G&S Formwork LtdBuilders
- Klenzo LtdCleaning companies
- West London Crown Construction LtdBuilders
- Dahlia Investment Group LimitedProperty developers
- Ekon Electrics LtdElectricians
- R&G Maintenance LtdCleaning companies
- Cornerstone Homes & Estates LtdProperty developers
What happens if Diamond Roofing & Building Specialists 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 15836650
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 July 2024 (2 years ago)
- Registered office
- 8 Holmlea Road, Datchet, Slough, SL3 9HQ
- Nature of business
- Roofing activities (SIC 43910)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 11 July 2025
Filing notes for roofing companies
Roofing companies commonly work under CIS and run vans and access equipment, so CIS deductions and capital allowances are the two things to get right.
Similar companies in Slough
Other active roofing companies registered in Slough.
- Dripstop Roofing and Landscape Ltd2025
- Elite Roof & Gutter Experts Ltd2025
- GPS Roofing Services Ltd2023
- Grewalz Roofing Ltd2024
- Gurdev Khinda Roofing (UK) Limited2023
- Hampshire & Berkshire Roofing & Building Ltd2026
- Hibbsway & Sons Ltd2026
- Highskyroofing Ltd2025
All roofing companies in Slough · All trades in Slough · Roofers across the UK
Frequently asked questions
When are Diamond Roofing & Building Specialists Ltd's accounts due?
Diamond Roofing & Building Specialists Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Diamond Roofing & Building Specialists Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Diamond Roofing & Building Specialists Ltd still trading?
Diamond Roofing & Building Specialists Ltd is listed as active on the Companies House register (checked 12 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 Roofing & Building Specialists Ltd do?
Diamond Roofing & Building Specialists Ltd is registered under Roofing activities (SIC 43910).
How old is Diamond Roofing & Building Specialists Ltd?
Diamond Roofing & Building Specialists Ltd was incorporated on 12 July 2024, 2 years ago.
What is the penalty if Diamond Roofing & Building Specialists 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 Roofing & Building Specialists Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.