- Companies
- Specialist contractors
- Sheffield
- JJ Crump Innovations Ltd
JJ Crump Innovations Ltd
- Company number
- 07373664
- Incorporated
- 13 Sep 201016 years trading
- Registered office
- 1A Nethermoor Lane, Killamarsh, Sheffield, Derbyshire, S21 1BZ
- Nature of business
- Other specialised construction activities n.e.c.
JJ Crump Innovations Ltd is a 16-year-old private limited company registered in Sheffield, company number 07373664, one of 267 specialist construction companies in Sheffield. Companies House shows its accounts as overdue: they were due on 30 September 2026.
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 unchanged on the year before, at -£8,206.
- Net assets rose in 0 of 4 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2020 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | -£8,206 | £100 | £8,306 | 0 | |
| 31 Dec 2023 | -£8,206 | £100 | £8,306 | 0 | |
| 31 Dec 2022 | -£8,206 | £100 | £8,306 | 0 | |
| 31 Dec 2021 | -£3,682 | £100 | £3,782 | 0 | |
| 31 Dec 2020 | £1 | £1 | £0 | 0 |
Where JJ Crump Innovations Ltd is registered
The registered office is in Sheffield (S21), in the North East Derbyshire local authority area, East Midlands. Show S21 1BZ on a map.
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What happens if JJ Crump Innovations Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 07373664
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 September 2010 (16 years ago)
- Registered office
- 1A Nethermoor Lane, Killamarsh, Sheffield, Derbyshire, S21 1BZ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 4 May 2026
- Previous names
- Ecotherm Solutions Ltd (until 1 May 2020)
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 Sheffield
Other active specialist construction companies registered in Sheffield.
- JJP Engineering Solutions Limited2014
- JM Fitout & Interiors Ltd2019
- JM Plant Training & Testing Ltd2016
- Jones Services Ltd2025
- JP Construction (Sy) Limited2018
- K B Interiors Limited2005
- Keystone Monarch Ltd2024
- Krio Limited2020
All specialist construction companies in Sheffield · All trades in Sheffield · Specialist contractors across the UK
Frequently asked questions
When are JJ Crump Innovations Ltd's accounts due?
JJ Crump Innovations Ltd's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is JJ Crump Innovations Ltd's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is JJ Crump Innovations Ltd still trading?
JJ Crump Innovations Ltd is listed as active on the Companies House register (checked 12 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 JJ Crump Innovations Ltd do?
JJ Crump Innovations Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is JJ Crump Innovations Ltd?
JJ Crump Innovations Ltd was incorporated on 13 September 2010, 16 years ago.
What is the penalty if JJ Crump Innovations 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 JJ Crump Innovations Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.