- Companies
- Electricians
- Colchester
- Franknox Limited
Franknox Limited
- Company number
- 14761139
- Incorporated
- 27 Mar 20233 years trading
- Registered office
- 11 De Grey Square, De Grey Road, Colchester, Essex, CO4 5YQ
- Nature of business
- Electrical installation; Other building completion and finishing
Franknox Limited is a 3-year-old private limited company registered in Colchester, company number 14761139, one of 209 electrical contractors in Colchester. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £10K (+83.9%) on the year before, to £23K.
- Current assets of £46K against £217K owed within a year: 0.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £23K | £23K | £46K | £217K | 0 |
| 31 Mar 2024 | £12K | £7,556 | £27K | £17K | 0 |
Where Franknox Limited is registered
The registered office is in Colchester (CO4), in the Colchester local authority area, East of England. Show CO4 5YQ on a map.
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- Lustre Pro Cleaning LtdCleaning companies
- Little Forge Holdings LtdMechanics and garages
- Dde Services LimitedMotor traders
- Humble Motors Essex LtdMotor traders
- 239 Gre LtdBuilders
- Violet Parlour LtdCleaning companies
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Also registered at this address
24 other companies use the same registered office as Franknox Limited.
- Aro Electrical LimitedElectricians
- Bewers LimitedFinishing trades
- Bricklawn LimitedCivil engineering
- Charbon Property Development LimitedProperty developers
- Constable Heating LimitedPlumbers and heating engineers
- Edmund Dobrowolski LimitedBuilders
- Essex Boiler Specialists LtdPlumbers and heating engineers
- Frankora LimitedElectricians
- Halo Properties LimitedProperty developers
- HK Plumbing and Heating LimitedPlumbers and heating engineers
- Innov8 Electrical Solutions LtdElectricians
- JLB Group LtdFinishing trades
- JP Stock Homes LtdProperty developers
- JP Stock LtdProperty developers
- M.G.T. Services LtdProperty developers
- Plummer Electrical Engineering LimitedElectricians
- Project Electric LimitedElectricians
- Rapid Response Maintenance LtdElectricians
- RMK Chisnall LtdLandscapers and gardeners
- Rusden LimitedProperty developers
- SD Electrical Solutions LtdElectricians
- Seaford Properties LimitedProperty developers
- TVR Building Services LimitedFinishing trades
- WB Nightingale LtdProperty developers
What happens if Franknox 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 14761139
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 March 2023 (3 years ago)
- Registered office
- 11 De Grey Square, De Grey Road, Colchester, Essex, CO4 5YQ
- Nature of business
- Electrical installation (SIC 43210)
Other building completion and finishing (SIC 43390) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 26 March 2026
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 Colchester
Other active electrical contractors registered in Colchester.
- Frankora Limited2026
- Frog Electrical Ltd2017
- Fused Electrical Installations Ltd.2017
- Future Electrical Limited2005
- G A C Electrical Ltd2015
- Galvanize Contracts Ltd2015
- Gecko Electrical Services Ltd2018
- Goodwoods Installations Ltd2022
All electrical contractors in Colchester · All trades in Colchester · Electricians across the UK
Frequently asked questions
When are Franknox Limited's accounts due?
Franknox Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Franknox Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Franknox Limited still trading?
Franknox 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 Franknox Limited do?
Franknox Limited is registered under Electrical installation (SIC 43210); Other building completion and finishing (SIC 43390).
How old is Franknox Limited?
Franknox Limited was incorporated on 27 March 2023, 3 years ago.
What is the penalty if Franknox 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 Franknox 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.