- Companies
- Electricians
- Shefford
- Spark and Hertz Electrical Ltd
Spark and Hertz Electrical Ltd
- Company number
- 11635599
- Incorporated
- 22 Oct 20187 years trading
- Registered office
- 2 Brewers Yard, Ivel Road, Shefford, Bedfordshire, SG17 5GY
- Nature of business
- Electrical installation
Spark and Hertz Electrical Ltd is a 7-year-old private limited company registered in Shefford, company number 11635599, one of 12 electrical contractors in Shefford. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £57K (-32.1%) on the year before, to £120K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £273K against £201K owed within a year: 1.4 times cover.
- 2 employees on average during the year.
- 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 Oct 2025 | £120K | £200K | £273K | £201K | 2 |
| 31 Oct 2024 | £177K | £272K | £347K | £191K | 2 |
| 31 Oct 2023 | £79K | £166K | £106K | 2 | |
| 31 Oct 2022 | £45K | £195K | £110K | 2 | |
| 31 Oct 2021 | £49K | £121K | £68K | 2 | |
| 31 Oct 2020 | £24K | £51K | £10K | 0 | |
| 31 Oct 2019 | £1,932 | £6,955 | £4,273 | 0 |
Where Spark and Hertz Electrical Ltd is registered
The registered office is in Shefford (SG17), in the Central Bedfordshire local authority area, East of England. Show SG17 5GY on a map.
Other trade companies in SG17
- Romulus Fire & Facilities LimitedSpecialist contractors
- Kingston Hart LimitedInstallers
- Spraynet LtdPainters and decorators
- Garden Collective Landscapes LtdFinishing trades
- Craft Tiling & Property Management LtdFloor and wall tilers
- B.Nicholls Plumbing and Heating LtdPlumbers and heating engineers
- Willis Construction 2025 LimitedProperty developers
- A.S.M Fire Solutions LtdInstallers
What happens if Spark and Hertz Electrical Ltd 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 11635599
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 October 2018 (7 years ago)
- Registered office
- 2 Brewers Yard, Ivel Road, Shefford, Bedfordshire, SG17 5GY
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 21 October 2025
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 Shefford
Other active electrical contractors registered in Shefford.
- Sparks of Shefford Limited2023
- Storm Electrics Ltd2011
- Aitch-Electrical Ltd2023
- Ben Marshall Electrical Ltd2019
- Day Interiors & Property Maintenance Limited2004
- G.M.A. Electrical Contractors Limited2016
- Hazelnut Electrical Ltd2018
- J & B Electrical Limited2006
All electrical contractors in Shefford · All trades in Shefford · Electricians across the UK
Frequently asked questions
When are Spark and Hertz Electrical Ltd's accounts due?
Spark and Hertz Electrical Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Spark and Hertz Electrical Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Spark and Hertz Electrical Ltd still trading?
Spark and Hertz Electrical Ltd 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 Spark and Hertz Electrical Ltd do?
Spark and Hertz Electrical Ltd is registered under Electrical installation (SIC 43210).
How old is Spark and Hertz Electrical Ltd?
Spark and Hertz Electrical Ltd was incorporated on 22 October 2018, 7 years ago.
What is the penalty if Spark and Hertz Electrical 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 Spark and Hertz Electrical Ltd 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.