- Companies
- Groundworks and demolition
- Stevenage
- LJ Diamond Drilling & Sawing Ltd
LJ Diamond Drilling & Sawing Ltd
- Company number
- 11743998
- Incorporated
- 31 Dec 20187 years trading
- Registered office
- 110 Derby Way, Stevenage, SG1 5TL
- Nature of business
- Test drilling and boring
LJ Diamond Drilling & Sawing Ltd is a 7-year-old private limited company registered in Stevenage, company number 11743998, one of the UK's groundworks and demolition companies. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 2027.
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 down £80K (-75%) on the year before, to £27K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £70K against £157K owed within a year: 0.4 times cover.
- 5 employees on average, down from 6 the year before.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £27K | £0 | £70K | £157K | 5 |
| 30 Nov 2024 | £107K | £1 | £144K | £151K | 6 |
| 30 Nov 2023 | £132K | £28K | £168K | £90K | 5 |
| 30 Nov 2022 | £75K | £12K | £159K | £105K | 6 |
| 30 Nov 2021 | £19K | £6,864 | £88K | £63K | 6 |
| 30 Nov 2020 | £6,930 | £34K | £92K | £50K | 5 |
| 30 Nov 2019 | £1,544 | £9,318 | £67K | £63K | 5 |
Where LJ Diamond Drilling & Sawing Ltd is registered
The registered office is in Stevenage (SG1), in the Stevenage local authority area, East of England. Show SG1 5TL on a map.
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What happens if LJ Diamond Drilling & Sawing 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 11743998
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 December 2018 (7 years ago)
- Registered office
- 110 Derby Way, Stevenage, SG1 5TL
- Nature of business
- Test drilling and boring (SIC 43130)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 30 December 2025
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 Stevenage
Other active groundworks and demolition companies registered in Stevenage.
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Frequently asked questions
When are LJ Diamond Drilling & Sawing Ltd's accounts due?
LJ Diamond Drilling & Sawing Ltd's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is LJ Diamond Drilling & Sawing Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is LJ Diamond Drilling & Sawing Ltd still trading?
LJ Diamond Drilling & Sawing Ltd 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 LJ Diamond Drilling & Sawing Ltd do?
LJ Diamond Drilling & Sawing Ltd is registered under Test drilling and boring (SIC 43130).
How old is LJ Diamond Drilling & Sawing Ltd?
LJ Diamond Drilling & Sawing Ltd was incorporated on 31 December 2018, 7 years ago.
What is the penalty if LJ Diamond Drilling & Sawing 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 LJ Diamond Drilling & Sawing Ltd 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.