- Companies
- Machinery repair and installation
- Uxbridge
- Clarkes Sparks Ltd
Clarkes Sparks Ltd
- Company number
- 13206101
- Incorporated
- 17 Feb 20215 years trading
- Registered office
- 101 Knighton Way Lane, Denham, Uxbridge, UB9 4EH
- Nature of business
- Repair of electrical equipment; Electrical installation
Clarkes Sparks Ltd is a 5-year-old private limited company registered in Uxbridge, company number 13206101, one of 40 machinery repair and installation companies in Uxbridge. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Clarkes Sparks LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £209 (-65.5%) on the year before, to £110.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £11K against £10K owed within a year: 1.1 times cover.
- 2 employees on average, down from 3 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £110 | £4,601 | £11K | £10K | 2 |
| 29 Feb 2024 | £319 | £1,528 | £13K | £7,045 | 3 |
| 28 Feb 2023 | £177 | £2,034 | £16K | £6,747 | 3 |
| 28 Feb 2022 | £3,224 | £1,149 | £8,143 | £4,919 | 2 |
Where Clarkes Sparks Ltd is registered
The registered office is in Uxbridge (UB9), in the Buckinghamshire local authority area, South East. Show UB9 4EH on a map.
Other trade companies in UB9
- Buildzz LtdBuilders
- 31Rigging LimitedScaffolders
- Og Rigging LtdScaffolders
- Ajp Property Services London LtdBuilders
- Garry Clark Set Construction LtdInstallers
- Garry Clark Construction LtdBuilders
- LCCC Landscaping and Maintenance Services LtdLandscapers and gardeners
- Commsource LtdSpecialist contractors
What happens if Clarkes Sparks 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 13206101
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 February 2021 (5 years ago)
- Registered office
- 101 Knighton Way Lane, Denham, Uxbridge, UB9 4EH
- Nature of business
- Repair of electrical equipment (SIC 33140)
Electrical installation (SIC 43210) - Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 16 February 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 Uxbridge
Other active machinery repair and installation companies registered in Uxbridge.
- Cleartech Digital Ltd2014
- Complete Pixel Solutions Ltd2022
- Compson Electrical Services Limited2011
- Control Heating and Air Conditioning Ltd2025
- Cuffe Fabrication Services Limited2025
- Dony Gift Products Ltd2017
- FMM Autoclave Service Ltd2013
- Gktechnic Ltd2022
All machinery repair and installation companies in Uxbridge · All trades in Uxbridge · Machinery repair and installation across the UK
Frequently asked questions
When are Clarkes Sparks Ltd's accounts due?
Clarkes Sparks Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Clarkes Sparks Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Clarkes Sparks Ltd still trading?
Clarkes Sparks 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 Clarkes Sparks Ltd do?
Clarkes Sparks Ltd is registered under Repair of electrical equipment (SIC 33140); Electrical installation (SIC 43210).
How old is Clarkes Sparks Ltd?
Clarkes Sparks Ltd was incorporated on 17 February 2021, 5 years ago.
What is the penalty if Clarkes Sparks 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 Clarkes Sparks 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.