- Companies
- Electricians
- Sidcup
- Sensor Fire Limited
Sensor Fire Limited
- Company number
- 10677534
- Incorporated
- 17 Mar 20179 years trading
- Registered office
- Unit 4 122 Maidstone Road, Foots Cray, Sidcup, DA14 5HS
- Nature of business
- Electrical installation
Sensor Fire Limited is a 9-year-old private limited company registered in Sidcup, company number 10677534, one of 178 electrical contractors in Sidcup. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £34K (+153.8%) on the year before, to £12K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £255K against £278K owed within a year: 0.9 times cover.
- 7 employees on average during the year.
- Balance sheets on record for 9 years, 2018 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £12K | £103K | £255K | £278K | 7 |
| 31 Mar 2025 | -£22K | £63K | £182K | £205K | 7 |
| 31 Mar 2024 | £4,027 | £249K | £214K | 9 | |
| 31 Mar 2023 | £21K | £210K | £136K | 10 | |
| 31 Mar 2022 | £51K | £255K | £109K | 7 | |
| 31 Mar 2021 | £23K | £161K | £129K | 7 | |
| 31 Mar 2020 | £1,626 | £107K | £132K | 7 | |
| 31 Mar 2019 | £1,339 | £14K | £66K | £83K | 7 |
| 31 Mar 2018 | £49K | £19K | £148K | £110K | 5 |
Who runs and owns Sensor Fire Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| C*** B*** | Director | Mar 2017 |
| J*** B*** | Director | Mar 2017 |
People with significant control (2)
Where Sensor Fire Limited is registered
The registered office is in Sidcup (DA14), in the Bexley local authority area, London. Show DA14 5HS on a map.
Other trade companies in DA14
- Evlor LtdElectricians
- Pfe Services LimitedElectricians
- CJM Property Services LimitedFinishing trades
- Top Local Trader LtdBuilders
- Bassett Electrical Group LimitedElectricians
- Flatline Flooring LtdFloor and wall tilers
- LDT Service's LimitedScaffolders
- Old Maidstone Road Hand Car Wash LtdMechanics and garages
What happens if Sensor Fire 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 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
- 10677534
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 March 2017 (9 years ago)
- Registered office
- Unit 4 122 Maidstone Road, Foots Cray, Sidcup, DA14 5HS
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 27 February 2026
- Previous names
- Sensor-Tec Installations Ltd (until 5 Mar 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 Sidcup
Other active electrical contractors registered in Sidcup.
- Shenfield Services Limited2014
- Si Electrical Limited1997
- Simon Webster Electrical Limited2024
- Sjsupplies Limited2015
- SLP Electrical Service London Ltd2021
- Sochin Electronic Systems Limited2016
- Sophia Electrical Limited2024
- Spectrum Electrical & Building Services Limited2021
All electrical contractors in Sidcup · All trades in Sidcup · Electricians across the UK
Frequently asked questions
When are Sensor Fire Limited's accounts due?
Sensor Fire Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Sensor Fire Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Sensor Fire Limited still trading?
Sensor Fire 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 Sensor Fire Limited do?
Sensor Fire Limited is registered under Electrical installation (SIC 43210).
How old is Sensor Fire Limited?
Sensor Fire Limited was incorporated on 17 March 2017, 9 years ago.
Who runs Sensor Fire Limited?
Sensor Fire Limited has 2 active directors, the longest-serving appointed in Mar 2017. Their names and service addresses are on the Companies House register.
Who owns Sensor Fire Limited?
2 people or companies have significant control of Sensor Fire Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Sensor Fire 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 Sensor Fire 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.