- Companies
- Machinery repair and installation
- Sheffield
- S.I Engineers Limited
S.I Engineers Limited
- Company number
- 05497512
- Incorporated
- 3 Jul 200521 years trading
- Registered office
- 1 Red Lodge Cottages Marsh Quarry, Eckington, Sheffield, S21 4EJ
- Nature of business
- Repair of other equipment
S.I Engineers Limited is a 21-year-old private limited company registered in Sheffield, company number 05497512, one of 205 machinery repair and installation companies in Sheffield. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 unchanged on the year before, at £100.
- Net assets rose in 0 of 9 year-on-year comparisons on record.
- Current assets of £15K against £15K owed within a year: 1.0 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 Dec 2025 | £100 | £15K | £15K | 2 | |
| 31 Dec 2024 | £100 | £26K | £26K | 2 | |
| 31 Dec 2023 | £100 | £5,208 | £5,108 | 2 | |
| 31 Dec 2022 | £100 | £5,773 | £5,673 | 2 | |
| 31 Dec 2021 | £100 | £19K | £19K | 2 | |
| 31 Dec 2020 | £100 | £19K | £19K | 2 | |
| 31 Dec 2019 | £100 | £15K | £14K | 2 | |
| 31 Dec 2018 | £100 | £16K | £16K | ||
| 31 Dec 2017 | £100 | £30K | £30K | ||
| 31 Dec 2016 | £100 | £22K | £22K |
Where S.I Engineers Limited is registered
The registered office is in Sheffield (S21), in the Chesterfield local authority area, East Midlands. Show S21 4EJ on a map.
Other trade companies in S21
- Oak & Beam LimitedBuilders
- Precision Tree Care LimitedLandscapers and gardeners
- Trueshift Autos LtdMotor traders
- Flowright Services LtdPlumbers and heating engineers
- Crusade Part Solutions LtdMotor traders
- RMK Cooling Systems LimitedPlumbers and heating engineers
- Mills Capital LtdProperty developers
- Apex Integrity Access LtdScaffolders
What happens if S.I Engineers 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 05497512
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 July 2005 (21 years ago)
- Registered office
- 1 Red Lodge Cottages Marsh Quarry, Eckington, Sheffield, S21 4EJ
- Nature of business
- Repair of other equipment (SIC 33190)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 3 July 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Sheffield
Other active machinery repair and installation companies registered in Sheffield.
- S.P. Fields (Contractors) Ltd2008
- S9 Vulcanising Ltd2020
- Safe-Ways Fire and Security Ltd2010
- Safenet Alarms Limited2011
- Sheffield Knife Sharpening Ltd2019
- Sheffield Mobility Solutions Ltd2020
- Sheffield Transmission Developments Limited2010
- Shefftech Ltd2022
All machinery repair and installation companies in Sheffield · All trades in Sheffield · Machinery repair and installation across the UK
Frequently asked questions
When are S.I Engineers Limited's accounts due?
S.I Engineers Limited's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is S.I Engineers Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is S.I Engineers Limited still trading?
S.I Engineers 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 S.I Engineers Limited do?
S.I Engineers Limited is registered under Repair of other equipment (SIC 33190).
How old is S.I Engineers Limited?
S.I Engineers Limited was incorporated on 3 July 2005, 21 years ago.
What is the penalty if S.I Engineers 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 S.I Engineers 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.