- Companies
- Electricians
- Biggin Hill
- Interwire (UK) Limited
Interwire (UK) Limited
- Company number
- 11439059
- Incorporated
- 28 Jun 20188 years trading
- Registered office
- 173 173 Main Road, Biggin Hill, Kent, TN16 3JR
- Nature of business
- Electrical installation
Interwire (UK) Limited is a 8-year-old private limited company registered in Biggin Hill, company number 11439059, one of 16 electrical contractors in Biggin Hill. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £14K (-22.3%) on the year before, to £50K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £86K against £13K owed within a year: 6.8 times cover.
- 4 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £50K | £86K | £13K | 4 | |
| 30 Jun 2024 | £64K | £111K | £9,665 | 4 | |
| 30 Jun 2023 | £38K | £117K | £120K | 4 | |
| 30 Jun 2022 | £115K | £293K | £200K | 5 | |
| 30 Jun 2021 | £19K | £68K | £52K | 3 | |
| 30 Jun 2020 | £12K | £62K | £51K | 2 | |
| 30 Jun 2019 | £10K | £60K | £51K |
Who runs and owns Interwire (UK) Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| B*** N*** | Director | Jun 2018 |
| M*** N*** | Director | Jun 2018 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| I*** H*** | Director | Jun 2018 | Feb 2025 |
People with significant control (2)
Where Interwire (UK) Limited is registered
The registered office is in Biggin Hill (TN16), in the Bromley local authority area, London. Show TN16 3JR on a map.
Other trade companies in TN16
- Fuller & Sons Carpentry LtdProperty developers
- Protech Air Solutions LtdPlumbers and heating engineers
- DW Construction (South) LimitedCivil engineering
- Danvic Facilities & Refurbishment LimitedSpecialist contractors
- The Plumbing Brothers LtdFinishing trades
- Beckenham Driveways and Patios LtdInstallers
- Christmas Tree Farm Outdoors Services LtdLandscapers and gardeners
- Jak Rolling LimitedPainters and decorators
What happens if Interwire (UK) 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 11439059
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 June 2018 (8 years ago)
- Registered office
- 173 173 Main Road, Biggin Hill, Kent, TN16 3JR
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 1 July 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 Biggin Hill
Other active electrical contractors registered in Biggin Hill.
- J Electrics Limited2005
- JD Electrical Installations Ltd2021
- Oakley Electrical (South) Ltd2011
- Polybius Payroll Ltd2013
- S.T. Brown (Electrical) Limited2010
- Saratoga Electrical Services Ltd2010
- Selkent Electrical Ltd2011
- Suffolk Airconditioning Ltd2002
All electrical contractors in Biggin Hill · All trades in Biggin Hill · Electricians across the UK
Frequently asked questions
When are Interwire (UK) Limited's accounts due?
Interwire (UK) Limited's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Interwire (UK) Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Interwire (UK) Limited still trading?
Interwire (UK) 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 Interwire (UK) Limited do?
Interwire (UK) Limited is registered under Electrical installation (SIC 43210).
How old is Interwire (UK) Limited?
Interwire (UK) Limited was incorporated on 28 June 2018, 8 years ago.
Who runs Interwire (UK) Limited?
Interwire (UK) Limited has 2 active directors, the longest-serving appointed in Jun 2018. Their names and service addresses are on the Companies House register.
Who owns Interwire (UK) Limited?
2 people or companies have significant control of Interwire (UK) Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Interwire (UK) 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 Interwire (UK) 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.