- Companies
- Specialist contractors
- Seaham
- Drilcorp Limited
Drilcorp Limited
- Company number
- 02691886
- Incorporated
- 28 Feb 199234 years trading
- Registered office
- Kinley Hill Farm, Hawthorn, Seaham, Co.Durham, SR7 8SW
- Nature of business
- Other specialised construction activities n.e.c.
Drilcorp Limited is a 34-year-old private limited company registered in Seaham, company number 02691886, one of 11 specialist construction companies in Seaham. 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 down £166K (-7.6%) on the year before, to £2M.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £1.2M against £533K owed within a year: 2.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £2M | £158K | £1.2M | £533K | 0 |
| 31 Mar 2025 | £2.2M | £930K | £1.7M | £408K | 34 |
| 31 Mar 2024 | £2.1M | £825K | £1.6M | £422K | 35 |
| 31 Mar 2023 | £2M | £405K | £2.1M | £798K | 33 |
| 31 Mar 2022 | £1.6M | £256K | £1.5M | £650K | 32 |
| 31 Mar 2021 | £1.2M | £178K | £823K | £410K | 32 |
| 31 Mar 2020 | £992K | £94K | £811K | £687K | 40 |
| 31 Mar 2019 | £1.1M | £54K | £698K | £573K | 41 |
| 31 Mar 2018 | £1.2M | £177K | £897K | £716K | 41 |
| 31 Mar 2017 | £1.3M | £324K | £1M | £758K | 39 |
Public contracts won
Drilcorp Limited has 19 public sector contract awards on record; the ones with their own published value total £3.6M, from 2015 to 2025. Source: Contracts Finder and Find a Tender award notices. 15 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- The University Of Nottingham7 awards
- UK Shared Business Services Limited5 awards
- Mining Remediation Authority1 award
- UK Research & Innovation1 award
- Homes England (the name adopted by the Homes and Communities Agency)1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Mining Remediation Authority | Brodsworth Monitoring Borehole | £548K | 8 Dec 2025 |
| UK Research & Innovation | UKRI-4762 BGS - Environmental monitoring borehole installation for assessing contamination | £125K | 28 Apr 2025 |
| Homes England (the name adopted by the Homes and Communities Agency) | Homes England - Borehole Drilling and Well Installation Works, West of Ifield | £455K | 13 Sep 2024 |
| The University of Nottingham | Water Heat Source Pump Test Borehole - AWARD | £207K | 1 Dec 2023 |
| The Coal Authority | Blidworth Borehole | £665K | 30 Jun 2023 |
| UK Shared Business Services Limited | FM21197 - Ince Marshes borehole reinstatement works | £14K | 31 Aug 2021 |
| UK Shared Business Services Limited | UK SBS PR19117 Research Drilling | £171K | 11 Feb 2020 |
| Coventry - Solihull - Warwickshire | SOL - Tudor Grange Leisure Centre Trial Borehole - AWARD | £386K | 9 Nov 2018 |
| Colchester Borough Council | GB-Colchester: Borehole investigation | £108K | 13 Apr 2018 |
| The University Of Nottingham | Drilling and Borehole Services | £150K | 30 Jan 2017 |
Showing the 10 most recent of 19.
Where Drilcorp Limited is registered
The registered office is in Seaham (SR7), in the County Durham local authority area, North East. Show SR7 8SW on a map.
Other trade companies in SR7
- Northeast Hygiene Solution LtdCleaning companies
- Wraccess LimitedElectricians
- GS Groundworks Ne LtdCivil engineering
- Alloy Wheel Studio LimitedMechanics and garages
- Leewoods Developments LtdProperty developers
- Parker Clarke Group LtdMachinery repair and installation
- Coast 2 Coast Builders LtdBuilders
- Technalight LtdElectricians
What happens if Drilcorp 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
- 02691886
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 February 1992 (34 years ago)
- Registered office
- Kinley Hill Farm, Hawthorn, Seaham, Co.Durham, SR7 8SW
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 28 February 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Seaham
Other active specialist construction companies registered in Seaham.
- Eleganz Constructions Limited2016
- L.Brunning Inspection Services Ltd2022
- Odin Construction Services Ltd2025
- Office Glass Partitions Northern Limited2015
- Retroflo Limited2007
- SLD Planning Ltd2016
- ST. Astier Limited2003
- Subport (Durham) Limited2024
All specialist construction companies in Seaham · All trades in Seaham · Specialist contractors across the UK
Frequently asked questions
When are Drilcorp Limited's accounts due?
Drilcorp Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Drilcorp 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 Drilcorp Limited still trading?
Drilcorp 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 Drilcorp Limited do?
Drilcorp Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Drilcorp Limited?
Drilcorp Limited was incorporated on 28 February 1992, 34 years ago.
Has Drilcorp Limited won public sector contracts?
Yes. Drilcorp Limited has 19 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £3.6M), most recently from Mining Remediation Authority.
What is the penalty if Drilcorp 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 Drilcorp 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.