- Companies
- Electricians
- Guildford
- Barton Knight Energy Limited
Barton Knight Energy Limited
- Company number
- 11300831
- Incorporated
- 10 Apr 20188 years trading
- Registered office
- Unit 3 Howard Building, 69-71 Burpham Road, Guildford, GU4 7LX
- Nature of business
- Electrical installation
Barton Knight Energy Limited is a 8-year-old private limited company registered in Guildford, company number 11300831, one of 74 electrical contractors in Guildford. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £30K (-416.5%) on the year before, to -£23K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £72K against £4,653 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 8 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | -£23K | -£1,097 | £72K | £4,653 | 0 |
| 30 Apr 2025 | £7,300 | £3,005 | £44K | £13K | 0 |
| 30 Apr 2024 | £925 | £3,275 | £37K | £503 | 0 |
| 30 Apr 2023 | £606 | -£3,152 | £155K | £727 | 1 |
| 30 Apr 2022 | £29K | £3,311 | £187K | £11K | 1 |
| 30 Apr 2021 | £20K | -£12K | £133K | £63K | 1 |
| 30 Apr 2020 | -£26K | -£9,277 | £40K | £66K | 1 |
| 30 Apr 2019 | £29K | £1,023 | £73K | £43K | 1 |
Public contracts won
Barton Knight Energy Limited has one public sector contract award on record; the ones with their own published value total £14K (2026). Source: Contracts Finder and Find a Tender award notices.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Kent Community Health NHS Foundation Trust | Solar PV: desktop review, site inspection, technical report, defects register and remedial works schedule | £14K | 29 Jun 2026 |
Where Barton Knight Energy Limited is registered
The registered office is in Guildford (GU4), in the Guildford local authority area, South East. Show GU4 7LX on a map.
Other trade companies in GU4
- Carwash Clay Lane LtdCleaning companies
- Das Carpet Cleaning LimitedCleaning companies
- Cleanin Genie Services LtdCleaning companies
- Open Lane Motors LimitedMotor traders
- Lewis Daniels Services LimitedCleaning companies
- Pollard Properties (Surrey) LtdProperty developers
- Clandon Roofing Company LtdRoofers
- Precision Cooling Solutions LtdPlumbers and heating engineers
What happens if Barton Knight Energy 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 11300831
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 April 2018 (8 years ago)
- Registered office
- Unit 3 Howard Building, 69-71 Burpham Road, Guildford, GU4 7LX
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 11 November 2025
- Previous names
- Spartan FM Limited (until 17 Oct 2024)
Spartan Electrical Distributors Limited (until 23 Nov 2018)
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 Guildford
Other active electrical contractors registered in Guildford.
- Boon Property Services Ltd2013
- Broadwater Safety Systems Limited2008
- Browns Design & Build Limited2007
- C&L Electrical Services Ltd2022
- Cam Electrical Surrey Ltd2024
- Centre Point Electrical Ltd2026
- Clarkhouse Electrical Limited2009
- Construct Electric Limited1995
All electrical contractors in Guildford · All trades in Guildford · Electricians across the UK
Frequently asked questions
When are Barton Knight Energy Limited's accounts due?
Barton Knight Energy Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Barton Knight Energy Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Barton Knight Energy Limited still trading?
Barton Knight Energy 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 Barton Knight Energy Limited do?
Barton Knight Energy Limited is registered under Electrical installation (SIC 43210).
How old is Barton Knight Energy Limited?
Barton Knight Energy Limited was incorporated on 10 April 2018, 8 years ago.
Has Barton Knight Energy Limited won public sector contracts?
Yes. Barton Knight Energy Limited has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £14K), most recently from KENT COMMUNITY HEALTH NHS FOUNDATION TRUST.
What is the penalty if Barton Knight Energy 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 Barton Knight Energy 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.