- Companies
- Groundworks and demolition
- Doncaster
- R. & B. Rock Drillers Limited
R. & B. Rock Drillers Limited
- Company number
- 01308689
- Incorporated
- 14 Apr 197749 years trading
- Registered office
- Hazel Lane Quarry, Hampole, Doncaster, South Yorkshire, DN6 7EY
- Nature of business
- Test drilling and boring
R. & B. Rock Drillers Limited is a 49-year-old private limited company registered in Doncaster, company number 01308689, one of 33 groundworks and demolition companies in Doncaster. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £231K (+18.5%) on the year before, to £1.5M.
- Net assets rose in 6 of 8 year-on-year comparisons on record.
- Current assets of £1.5M against £830K owed within a year: 1.8 times cover.
- 15 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £1.5M | £781K | £1.5M | £830K | 15 |
| 31 Mar 2025 | £1.3M | £582K | £1.3M | £1.1M | 15 |
| 31 Mar 2024 | £858K | £369K | £879K | £667K | 15 |
| 31 Mar 2023 | £995K | £568K | £1.1M | £569K | 16 |
| 31 Mar 2022 | £938K | £324K | £945K | £576K | 16 |
| 31 Mar 2021 | £1M | £484K | £973K | £781K | 15 |
| 31 Mar 2020 | £815K | £36K | £555K | £618K | 15 |
| 31 Mar 2019 | £691K | £161K | £657K | £653K | |
| 31 Mar 2018 | £638K | £182K | £571K | £558K | |
| 31 Mar 2016 | £649K | £199K | £725K | £372K |
Where R. & B. Rock Drillers Limited is registered
The registered office is in Doncaster (DN6), in the Doncaster local authority area, Yorkshire and The Humber. Show DN6 7EY on a map.
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- Galestra LtdMechanics and garages
- Paneperfect LtdCleaning companies
- A.B Building Preservation LtdCleaning companies
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What happens if R. & B. Rock Drillers 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 01308689
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 April 1977 (49 years ago)
- Registered office
- Hazel Lane Quarry, Hampole, Doncaster, South Yorkshire, DN6 7EY
- Nature of business
- Test drilling and boring (SIC 43130)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 30 November 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Doncaster
Other active groundworks and demolition companies registered in Doncaster.
- RJ Earthmoving Ltd2019
- Road to Rome Limited2025
- RP Drilling Limited2007
- Springfield Industrial Ltd2025
- TC Demolition Ltd2022
- The Ground Guys Ltd2023
- Thorne Demolition Limited2004
- Total Ground Solutions Limited2025
All groundworks and demolition companies in Doncaster · All trades in Doncaster · Groundworks and demolition across the UK
Frequently asked questions
When are R. & B. Rock Drillers Limited's accounts due?
R. & B. Rock Drillers Limited's next accounts are due at Companies House by 31 December 2027 (in 443 days), covering the period to 31 March 2027.
When is R. & B. Rock Drillers Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is R. & B. Rock Drillers Limited still trading?
R. & B. Rock Drillers 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 R. & B. Rock Drillers Limited do?
R. & B. Rock Drillers Limited is registered under Test drilling and boring (SIC 43130).
How old is R. & B. Rock Drillers Limited?
R. & B. Rock Drillers Limited was incorporated on 14 April 1977, 49 years ago.
What is the penalty if R. & B. Rock Drillers 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 R. & B. Rock Drillers 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.