- Companies
- Electricians
- London
- Strong Services Limited
Strong Services Limited
- Company number
- 09864173
- Incorporated
- 9 Nov 201510 years trading
- Registered office
- 167-169 Great Portland Street, 5TH Floor, London, W1W 5PF
- Nature of business
- Electrical installation; Wired telecommunications activities; Wireless telecommunications activities
Strong Services Limited is a 10-year-old private limited company registered in London, company number 09864173, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 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 down £20K (-986.6%) on the year before, to -£18K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £345K against £344K owed within a year: 1.0 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | -£18K | £272 | £345K | £344K | 2 |
| 31 Oct 2024 | £2,057 | £17K | £320K | £262K | 2 |
| 31 Oct 2023 | £58K | £9,877 | £356K | £289K | 3 |
| 31 Oct 2022 | -£152K | £2,435 | £88K | £212K | 2 |
| 31 Oct 2021 | -£120K | £36K | £155K | £185K | 4 |
| 31 Oct 2020 | -£56K | £124K | £205K | £198K | 4 |
| 31 Oct 2019 | £88K | £45K | £290K | £202K | |
| 31 Oct 2018 | £55K | £136K | £322K | £264K | |
| 31 Oct 2017 | £1,050 | £25K | £162K | £188K | |
| 31 Oct 2016 | £100 | £100 |
Who runs and owns Strong Services Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (4)
| Name | Role | Appointed |
|---|---|---|
| D*** W*** | Director | Jan 2019 |
| R*** R*** | Director | Dec 2019 |
| P*** R*** | Director | Mar 2023 |
| R*** R*** | Director | Mar 2026 |
4 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| R*** R*** | Secretary | Nov 2015 | May 2018 |
| P*** M*** | Director | Oct 2016 | May 2017 |
| R*** R*** | Director | Jan 2019 | Mar 2026 |
| R*** R*** | Director | Nov 2015 | May 2019 |
People with significant control (2)
Where Strong Services Limited is registered
The registered office is in London (W1W), in the Westminster local authority area, London. Show W1W 5PF on a map.
Other trade companies in W1W
- Civaris LtdSpecialist contractors
- R&R Construction Group LtdBuilders
- Aurum Cooling LtdPlumbers and heating engineers
- Steam Wood Stone LtdFinishing trades
- Hau Developments LimitedProperty developers
- Group Atlas Financial 83 LtdPainters and decorators
- Energy Reward LtdMotor traders
- Holly’S Housekeeping LtdCleaning companies
Shared registered office
1,494 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Strong Services 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 09864173
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 November 2015 (10 years ago)
- Registered office
- 167-169 Great Portland Street, 5TH Floor, London, W1W 5PF
- Nature of business
- Electrical installation (SIC 43210)
Wired telecommunications activities (SIC 61100)
Wireless telecommunications activities (SIC 61200) - Year end
- 31 October (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 8 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 London
Other active electrical contractors registered in London.
- Structured Wiring Ltd2026
- Struktor Ltd2014
- Stuart Power Electrical Services Limited2026
- Studman Electrical and Building Limited2023
- Sturt Plant Limited2015
- Sulis Electrical Limited2022
- Summit Electrical Solutions Limited2024
- Sun Sure Renewables Ltd2026
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Strong Services Limited's accounts due?
Strong Services Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Strong Services Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Strong Services Limited still trading?
Strong Services 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 Strong Services Limited do?
Strong Services Limited is registered under Electrical installation (SIC 43210); Wired telecommunications activities (SIC 61100); Wireless telecommunications activities (SIC 61200).
How old is Strong Services Limited?
Strong Services Limited was incorporated on 9 November 2015, 10 years ago.
Who runs Strong Services Limited?
Strong Services Limited has 4 active directors, the longest-serving appointed in Jan 2019. Their names and service addresses are on the Companies House register.
Who owns Strong Services Limited?
2 people or companies have significant control of Strong Services Limited: an individual (owns 25% to 50% of the shares); an individual (owns 50% to 75% of the shares).
What is the penalty if Strong Services 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 Strong Services 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.