- Companies
- Electricians
- Bromley
- Great Rock Electrical Ltd
Great Rock Electrical Ltd
- Company number
- 13483399
- Incorporated
- 29 Jun 20215 years trading
- Registered office
- 21 East Street, Bromley, BR1 1QE
- Nature of business
- Electrical installation; Engineering related scientific and technical consulting activities
Great Rock Electrical Ltd is a 5-year-old private limited company registered in Bromley, company number 13483399, one of 131 electrical contractors in Bromley. 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 up £2,697 (+139.7%) on the year before, to £4,628.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £26K against £22K owed within a year: 1.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £4,628 | £26K | £22K | 1 | |
| 30 Jun 2024 | £1,931 | £12K | £11K | 1 | |
| 30 Jun 2023 | £720 | £3,787 | £3,067 | 1 | |
| 30 Jun 2022 | £311 | £3,711 | £3,400 | 1 |
Where Great Rock Electrical Ltd is registered
The registered office is in Bromley (BR1), in the Bromley local authority area, London. Show BR1 1QE on a map.
Other trade companies in BR1
- Selvaa LimitedRepair services
- E.Esoteric LimitedElectricians
- Ideal Move Properties LimitedProperty developers
- Slick Moves London LtdMachinery repair and installation
- Greenwoods Home & Garden Services LimitedCleaning companies
- Primecroft Group LtdBuilders
- Rapid Emergency Plumbers London LtdPlumbers and heating engineers
- Faspen LtdCleaning companies
Also registered at this address
16 other companies use the same registered office as Great Rock Electrical Ltd.
- Aimpro Construction LtdInstallers
- Akim Electric LtdMachinery repair and installation
- All UK Electric LimitedElectricians
- Arctec Construction LtdBuilders
- Beckenham Auto Services LimitedMachinery repair and installation
- Building Life (UK) LimitedFinishing trades
- Christian Cleaning LimitedCleaning companies
- Hab Building Solution LtdBuilders
- Is.G Metalworks LimitedMachinery repair and installation
- J&V Plastering LimitedPlasterers
- Kara Plastering & Rendering LtdPlasterers
- M A Construction and Landscaping LtdFinishing trades
- Paragon Building & Construction LimitedFinishing trades
- SB Plastering & Rendering LimitedPlasterers
- Selhurst Construction LimitedSpecialist contractors
- Tile Roofing LimitedRoofers
What happens if Great Rock Electrical Ltd 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
- 13483399
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 June 2021 (5 years ago)
- Registered office
- 21 East Street, Bromley, BR1 1QE
- Nature of business
- Electrical installation (SIC 43210)
Engineering related scientific and technical consulting activities (SIC 71122) - Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 1 June 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 Bromley
Other active electrical contractors registered in Bromley.
- Green Earth Electrical Limited2019
- Hayeswood Electrical Ltd2013
- Henderson Grehan Electrical Ltd2026
- Higgins Construction Services Ltd2015
- Hojo Signals Ltd2014
- Horsted Services Limited2002
- Hurn Electrical Ltd2019
- Inscape Projects Ltd2020
All electrical contractors in Bromley · All trades in Bromley · Electricians across the UK
Frequently asked questions
When are Great Rock Electrical Ltd's accounts due?
Great Rock Electrical Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Great Rock Electrical Ltd'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 Great Rock Electrical Ltd still trading?
Great Rock Electrical Ltd 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 Great Rock Electrical Ltd do?
Great Rock Electrical Ltd is registered under Electrical installation (SIC 43210); Engineering related scientific and technical consulting activities (SIC 71122).
How old is Great Rock Electrical Ltd?
Great Rock Electrical Ltd was incorporated on 29 June 2021, 5 years ago.
What is the penalty if Great Rock Electrical Ltd 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 Great Rock Electrical Ltd 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.