- Companies
- Specialist contractors
- Ilkeston
- Structural Investigation Services Limited
Structural Investigation Services Limited
- Company number
- 11231077
- Incorporated
- 28 Feb 20188 years trading
- Registered office
- 23 Birkdale Close, Manners Industrial Estate, Ilkeston, Derbyshire, DE7 8YA
- Nature of business
- Other specialised construction activities n.e.c.
Structural Investigation Services Limited is a 8-year-old private limited company registered in Ilkeston, company number 11231077, one of 38 specialist construction companies in Ilkeston. 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 £14K (-3.2%) on the year before, to £403K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £1.1M against £877K owed within a year: 1.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £403K | £61K | £1.1M | £877K | 0 |
| 31 Mar 2024 | £417K | £53K | £761K | £437K | 25 |
| 31 Mar 2023 | £284K | £31K | £438K | £219K | 20 |
| 31 Mar 2022 | £230K | £89K | £281K | £106K | 15 |
| 31 Mar 2021 | £304K | £199K | £645K | £367K | 9 |
| 31 Mar 2020 | £42K | £6,040 | £132K | £110K | |
| 31 Mar 2019 | -£15K | £4,992 | £56K | £79K |
Public contracts won
Structural Investigation Services Limited has 14 public sector contract awards on record; the ones with their own published value total £448K, from 2019 to 2025. Source: Contracts Finder and Find a Tender award notices. For 4 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 9 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Merseyside Waste Disposal Authority3 awards
- Leeds City Council3 awards
- Highways England2 awards
- Cyngor Gwynedd1 award
- Forestry Commission1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Merseyside Waste Disposal Authority | Sefton Meadows Road Bridge Remediation Works 2025-26 | £17K | 16 Oct 2025 |
| Cyngor Gwynedd | NMWTRA Confined space, roped access & difficult access inspections 2025 | £100K | 17 Jul 2025 |
| Leeds City Council | Underwater Inspections Framework 2025 | Ceiling, not shown | 20 Jan 2025 |
| Leeds City Council | Underwater Maintenance Framework 2024-28 | Ceiling, not shown | 2 Dec 2024 |
| Merseyside Waste Disposal Authority | Sefton Meadows Road Bridge Remediation Works 2024-25 | £20K | 16 Sep 2024 |
| Forestry Commission | Bridge Inspection Contract | £73K | 1 Feb 2024 |
| Merseyside Waste Disposal Authority | Sefton meadows Road Bridge Inspection September 2023 | £2,713 | 2 Nov 2023 |
| City of Bradford Metropolitan District Council | Highway Structures Inspections & Reporting Framework | Ceiling, not shown | 13 Sep 2023 |
| Kier Transportation Limited | A417 Missing Link - Condition Surveys | £23K | 6 Sep 2023 |
| North East Lincolnshire Council | HD021-22 Peaks Parkway Ellis Way Wall Investigation | £123K | 13 Jan 2023 |
Showing the 10 most recent of 14.
Where Structural Investigation Services Limited is registered
The registered office is in Ilkeston (DE7), in the Erewash local authority area, East Midlands. Show DE7 8YA on a map.
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- D.M Scaffolding Services LtdScaffolders
- Peak Volt Renewables LtdInstallers
- GT Auto ND Traders LtdMotor traders
- E.R. Surveying LtdBuilders
- P.Burch Maintenance LtdFinishing trades
- Bird Muck & Moss LtdRoofers
What happens if Structural Investigation 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
- 11231077
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 February 2018 (8 years ago)
- Registered office
- 23 Birkdale Close, Manners Industrial Estate, Ilkeston, Derbyshire, DE7 8YA
- 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 2025
- Last confirmation statement
- 27 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 Ilkeston
Other active specialist construction companies registered in Ilkeston.
- SWB Commercial and Project Management Limited2017
- Ugopropertymaintenance Ltd2026
- Viking Contractors (Nottingham) Ltd2022
- Xcel Safety Group Ltd2025
- A & W Construction & Sons Ltd2011
- Ahb Direct Services Ltd2012
- Ar Property Maintenance (Ilkeston) Ltd2026
- BDS Construction Ltd2013
All specialist construction companies in Ilkeston · All trades in Ilkeston · Specialist contractors across the UK
Frequently asked questions
When are Structural Investigation Services Limited's accounts due?
Structural Investigation Services Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Structural Investigation 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 Structural Investigation Services Limited still trading?
Structural Investigation 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 Structural Investigation Services Limited do?
Structural Investigation Services Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Structural Investigation Services Limited?
Structural Investigation Services Limited was incorporated on 28 February 2018, 8 years ago.
Has Structural Investigation Services Limited won public sector contracts?
Yes. Structural Investigation Services Limited has 14 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £448K), most recently from Merseyside Waste Disposal Authority.
What is the penalty if Structural Investigation 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 Structural Investigation 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.