- Companies
- Electricians
- Doncaster
- S. Jenkinson and Sons Limited
S. Jenkinson and Sons Limited
- Company number
- 01693919
- Incorporated
- 24 Jan 198343 years trading
- Registered office
- Jenkinson House, White Rose Way, Doncaster, South Yorkshire, DN4 5GJ
- Nature of business
- Electrical installation
S. Jenkinson and Sons Limited is a 43-year-old private limited company registered in Doncaster, company number 01693919, one of 215 electrical contractors in Doncaster. 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 up £471K (+28.9%) on the year before, to £2.1M.
- Net assets rose in 6 of 7 year-on-year comparisons on record.
- Current assets of £2.6M against £609K owed within a year: 4.3 times cover.
- 19 employees on average, down from 21 the year before.
- Balance sheets on record for 8 years, 2016 to 2023.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2023 | £2.1M | £635K | £2.6M | £609K | 19 |
| 31 Mar 2022 | £1.6M | £473K | £2.1M | £536K | 21 |
| 31 Mar 2021 | £1.5M | £1.1M | £1.8M | £474K | 20 |
| 31 Mar 2020 | £1.3M | £1.1M | £1.5M | £327K | 21 |
| 31 Mar 2019 | £1.2M | £1.1M | £1.6M | £249K | 26 |
| 31 Mar 2018 | £1.3M | £964K | £2M | £668K | 29 |
| 31 Mar 2017 | £1.1M | £843K | £2M | £733K | 30 |
| 31 Mar 2016 | £1M | £604K | £1.5M | £631K | 28 |
Where S. Jenkinson and Sons Limited is registered
The registered office is in Doncaster (DN4), in the Doncaster local authority area, Yorkshire and The Humber. Show DN4 5GJ on a map.
Other trade companies in DN4
- Krishtal Cleaning LtdCleaning companies
- Regional Services & Maintenance LtdElectricians
- Kristan Carr E&M LimitedElectricians
- Brookes Home and Heating LtdBuilders
- 1ST Ground Construction Management Services LtdProperty developers
- Speedy Transport Doncaster LtdMechanics and garages
- Team Clean Group Commercial LtdCleaning companies
- Veridian Guard LtdInstallers
Also registered at this address
2 other companies use the same registered office as S. Jenkinson and Sons Limited.
- CMD Electrical Engineering LimitedElectricians
- Platinum Rail Services LimitedMachinery repair and installation
What happens if S. Jenkinson and Sons 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
- 01693919
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 January 1983 (43 years ago)
- Registered office
- Jenkinson House, White Rose Way, Doncaster, South Yorkshire, DN4 5GJ
- Nature of business
- Electrical installation (SIC 43210)
- 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)
- 2 outstanding of 4 registered
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Doncaster
Other active electrical contractors registered in Doncaster.
- Safe Electrical Services Limited1998
- Scarbrook Electrical Limited2017
- Select Electrical (GB) Limited2002
- Skelcroft Electrics Limited2019
- Skidmore Electrical (UK) Ltd2014
- Slingsby Electrics Limited2007
- Smart Electrical Services 4 U Ltd2014
- Smithson Electrical Services Limited2014
All electrical contractors in Doncaster · All trades in Doncaster · Electricians across the UK
Frequently asked questions
When are S. Jenkinson and Sons Limited's accounts due?
S. Jenkinson and Sons Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is S. Jenkinson and Sons 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 S. Jenkinson and Sons Limited still trading?
S. Jenkinson and Sons 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. Jenkinson and Sons Limited do?
S. Jenkinson and Sons Limited is registered under Electrical installation (SIC 43210).
How old is S. Jenkinson and Sons Limited?
S. Jenkinson and Sons Limited was incorporated on 24 January 1983, 43 years ago.
What is the penalty if S. Jenkinson and Sons 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. Jenkinson and Sons 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.