- Companies
- Installers
- Mansfield
- Core-Ect Diamond Drilling Limited
Core-Ect Diamond Drilling Limited
- Company number
- 13626069
- Incorporated
- 16 Sep 20215 years trading
- Registered office
- 10 Rockley Close, Clipstone Village, Mansfield, NG21 9AD
- Nature of business
- Other construction installation
Core-Ect Diamond Drilling Limited is a 5-year-old private limited company registered in Mansfield, company number 13626069, one of 49 installation companies (insulation, lifts, shutters and similar) in Mansfield. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Core-Ect Diamond Drilling LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £100K (+130.2%) on the year before, to £177K.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £337K against £240K owed within a year: 1.4 times cover.
- 4 employees on average, up from 3 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £177K | £43K | £337K | £240K | 4 |
| 30 Sep 2024 | £77K | £14K | £134K | £108K | 3 |
| 30 Sep 2023 | £91K | £21K | £145K | £87K | 2 |
| 30 Sep 2022 | £61K | £13K | £99K | £44K | 2 |
Where Core-Ect Diamond Drilling Limited is registered
The registered office is in Mansfield (NG21), in the Newark and Sherwood local authority area, East Midlands. Show NG21 9AD on a map.
Other trade companies in NG21
- MSWF Retail LtdMotor traders
- D Nelson Electrical LimitedElectricians
- Hardback Tree Services LtdLandscapers and gardeners
- Evergreen Fencing & Landscapes LimitedLandscapers and gardeners
- Robin Hood Refrigeration LtdPlumbers and heating engineers
- Apex Armour Coatings LtdFinishing trades
- Pba Contracts LimitedInstallers
- Rainworth Roofing LimitedRoofers
What happens if Core-Ect Diamond Drilling 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 13626069
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 September 2021 (5 years ago)
- Registered office
- 10 Rockley Close, Clipstone Village, Mansfield, NG21 9AD
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 15 September 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Mansfield
Other active installation companies (insulation, lifts, shutters and similar) registered in Mansfield.
- D.A Installations Ltd2026
- DCH Electrics Ltd2020
- Diamond Kitchens / Bathrooms Ltd2023
- Diamond-PFP Limited2025
- DL Fencing Ltd.2018
- Dynamic Access (UK) Limited2014
- Dynamic Commercial Roofing Limited2025
- Fire Fort Ltd2022
All installation companies (insulation, lifts, shutters and similar) in Mansfield · All trades in Mansfield · Installers across the UK
Frequently asked questions
When are Core-Ect Diamond Drilling Limited's accounts due?
Core-Ect Diamond Drilling Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Core-Ect Diamond Drilling Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Core-Ect Diamond Drilling Limited still trading?
Core-Ect Diamond Drilling 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 Core-Ect Diamond Drilling Limited do?
Core-Ect Diamond Drilling Limited is registered under Other construction installation (SIC 43290).
How old is Core-Ect Diamond Drilling Limited?
Core-Ect Diamond Drilling Limited was incorporated on 16 September 2021, 5 years ago.
What is the penalty if Core-Ect Diamond Drilling 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 Core-Ect Diamond Drilling 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.