- Companies
- Specialist contractors
- Sunderland
- Tunnel Consultants Services Limited
Tunnel Consultants Services Limited
- Company number
- 04400914
- Incorporated
- 21 Mar 200224 years trading
- Registered office
- 5 Highcroft Park, Sunderland, SR6 7BL
- Nature of business
- Other specialised construction activities n.e.c.
Tunnel Consultants Services Limited is a 24-year-old private limited company registered in Sunderland, company number 04400914, one of 81 specialist construction companies in Sunderland. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £6,611 (-22.5%) on the year before, to £23K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £21K against £3,334 owed within a year: 6.4 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £23K | £21K | £3,334 | 2 | |
| 31 Mar 2024 | £29K | £34K | £9,816 | 2 | |
| 31 Mar 2023 | £43K | £55K | £15K | 2 | |
| 31 Mar 2022 | £48K | £56K | £12K | 2 | |
| 31 Mar 2021 | £34K | £48K | £16K | 1 | |
| 31 Mar 2020 | £11K | £23K | £14K | 2 | |
| 31 Mar 2019 | £5,703 | £13K | £8,324 | ||
| 31 Mar 2018 | £106 | £9,511 | £11K | ||
| 31 Mar 2017 | £6,623 | £6,356 | £1,363 | ||
| 31 Mar 2016 | £6,185 | £3,732 | £6,780 | £2,403 |
Who runs and owns Tunnel Consultants Services Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| T*** D*** | Director | Mar 2002 |
| P*** D*** | Director | Nov 2002 |
3 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| P*** D*** | Secretary | Mar 2002 | Nov 2010 |
| Jl Nominees Two Limited | Corporate Nominee Secretary | Mar 2002 | Mar 2002 |
| Jl Nominees One Limited | Nominee director (company) | Mar 2002 | Mar 2002 |
Person with significant control
Where Tunnel Consultants Services Limited is registered
The registered office is in Sunderland (SR6), in the South Tyneside local authority area, North East. Show SR6 7BL on a map.
Other trade companies in SR6
- Pakon LimitedPlumbers and heating engineers
- JH Power LtdSpecialist contractors
- NR Groundworks Ne LtdCivil engineering
- TLT Ne LimitedMachinery repair and installation
- Mackintosh Repairs & Maintenance LtdElectricians
- Slate Scaffolding LtdScaffolders
- Tekscope LimitedElectricians
- Warm Home Approach LtdInstallers
What happens if Tunnel Consultants Services 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 04400914
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 March 2002 (24 years ago)
- Registered office
- 5 Highcroft Park, Sunderland, SR6 7BL
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 21 March 2026
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 Sunderland
Other active specialist construction companies registered in Sunderland.
- Vertical Works Ne Ltd2026
- Vital Showpower Ltd2017
- Wear Access Ltd2023
- Wearside Odd Jobs Ltd2026
- Whitewaters Ltd2006
- 42Pa Ltd2025
- A & M Pools Limited2016
- Accomplished Plumbing Heating & Joinery Services Limited2008
All specialist construction companies in Sunderland · All trades in Sunderland · Specialist contractors across the UK
Frequently asked questions
When are Tunnel Consultants Services Limited's accounts due?
Tunnel Consultants Services Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Tunnel Consultants Services Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Tunnel Consultants Services Limited still trading?
Tunnel Consultants Services 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 Tunnel Consultants Services Limited do?
Tunnel Consultants Services Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Tunnel Consultants Services Limited?
Tunnel Consultants Services Limited was incorporated on 21 March 2002, 24 years ago.
Who runs Tunnel Consultants Services Limited?
Tunnel Consultants Services Limited has 2 active directors, the longest-serving appointed in Mar 2002. Their names and service addresses are on the Companies House register.
Who owns Tunnel Consultants Services Limited?
One person or company has significant control of Tunnel Consultants Services Limited: an individual (owns 75% or more of the shares).
What is the penalty if Tunnel Consultants Services 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 Tunnel Consultants Services 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.