- Companies
- Electricians
- Milton Keynes
- CT Sparks Ltd
CT Sparks Ltd
- Company number
- 10419594
- Incorporated
- 10 Oct 201610 years trading
- Registered office
- 65 Caxton Court Garamonde Drive, Wymbush, Milton Keynes, MK8 8DD
- Nature of business
- Electrical installation
CT Sparks Ltd is a 10-year-old private limited company registered in Milton Keynes, company number 10419594, one of 165 electrical contractors in Milton Keynes. Its next accounts are due at Companies House on 31 December 2027, and its first CT600 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 up £18K (+22.9%) on the year before, to £96K.
- Net assets rose in 3 of 8 year-on-year comparisons on record.
- Current assets of £166K against £99K owed within a year: 1.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £96K | £166K | £99K | 1 | |
| 31 Oct 2024 | £78K | £102K | £49K | 1 | |
| 31 Oct 2023 | £29K | £14K | £50K | 3 | |
| 31 Oct 2022 | £29K | £14K | £50K | 3 | |
| 31 Oct 2021 | £29K | £14K | £50K | 3 | |
| 31 Oct 2020 | £29K | £14K | £50K | 3 | |
| 31 Oct 2019 | £35K | £19K | £55K | 2 | |
| 31 Oct 2018 | £8,588 | £41K | £0 | ||
| 31 Oct 2017 | £13K | £26K | £54K |
Public contracts won
CT Sparks Ltd has one public sector contract award on record; the ones with their own published value total £139K (2025). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| West Hertfordshire Teaching Hospitals NHS Trust | WHTHT - MSCP Battery Replacement Works | £139K | 28 Aug 2025 |
Where CT Sparks Ltd is registered
The registered office is in Milton Keynes (MK8), in the Milton Keynes local authority area, South East. Show MK8 8DD on a map.
Other trade companies in MK8
- Flow State Flooring LtdFloor and wall tilers
- Premier Window Shine MK LtdCleaning companies
- Leco Rail LtdCivil engineering
- Shakthi Heating & Electric LtdElectricians
- Tumi Jaan LimitedProperty developers
- Prestige Electrical MK LtdElectricians
- Homekey Developments LtdProperty developers
- PS4 Construction LtdBuilders
What happens if CT 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 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
- 10419594
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 October 2016 (10 years ago)
- Registered office
- 65 Caxton Court Garamonde Drive, Wymbush, Milton Keynes, MK8 8DD
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 2 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 Milton Keynes
Other active electrical contractors registered in Milton Keynes.
- CV Energy Systems Ltd2025
- D J Sorrell Electrical Contractor Limited2005
- D&L Electrical & Fibre Ltd2025
- Dawsons Electrical Limited2015
- DCG Contracts Limited2006
- Deal Electrical Contracting Limited2017
- Depth of Light Ltd2022
- Dixons Plumbing and Electrical Works Limited2016
All electrical contractors in Milton Keynes · All trades in Milton Keynes · Electricians across the UK
Frequently asked questions
When are CT Sparks Ltd's accounts due?
CT Sparks Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is CT Sparks Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 October 2026, due by 31 October 2027, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is CT Sparks Ltd still trading?
CT 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 CT Sparks Ltd do?
CT Sparks Ltd is registered under Electrical installation (SIC 43210).
How old is CT Sparks Ltd?
CT Sparks Ltd was incorporated on 10 October 2016, 10 years ago.
Has CT Sparks Ltd won public sector contracts?
Yes. CT Sparks Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £139K), most recently from West Hertfordshire Teaching Hospitals NHS Trust.
What is the penalty if CT 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 CT 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.