- Companies
- Installers
- Erith
- GCK Limited
GCK Limited
- Company number
- 12802002
- Incorporated
- 10 Aug 20206 years trading
- Registered office
- 2 Galleon Close, Erith, DA8 1DD
- Nature of business
- Other construction installation
GCK Limited is a 6-year-old private limited company registered in Erith, company number 12802002, one of 23 installation companies (insulation, lifts, shutters and similar) in Erith. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £866 (+42.8%) on the year before, to £2,890.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £2,890 | £2,890 | 2 | ||
| 31 Aug 2024 | £2,024 | £2,024 | 2 | ||
| 31 Aug 2023 | -£2,386 | £840 | £3,226 | 2 | |
| 31 Aug 2022 | £283 | £283 | 2 | ||
| 31 Aug 2021 | £101 | £101 | 2 |
Where GCK Limited is registered
The registered office is in Erith (DA8), in the Bexley local authority area, London. Show DA8 1DD on a map.
Other trade companies in DA8
- Globaltrade321 LtdBuilders
- The Pheasant Garage (S.E.) LtdMechanics and garages
- Roman Square Group LtdBuilders
- Rigor Air Conditioning LtdPlumbers and heating engineers
- SPN Cleaning Service LtdCleaning companies
- Olivia’S Bathrooms and Kitchens LtdInstallers
- CBV Auto LtdMechanics and garages
- Abbewood LtdMotor traders
What happens if GCK 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 12802002
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 August 2020 (6 years ago)
- Registered office
- 2 Galleon Close, Erith, DA8 1DD
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 9 August 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Erith
Other active installation companies (insulation, lifts, shutters and similar) registered in Erith.
- Gorix Ltd2019
- Heritage Building Services Limited1997
- HJK Steel Engineering Limited2022
- Laing and Son Ltd2025
- Luk Interiors Ltd2026
- Mattiro Ltd2020
- Morris Flooring Limited2016
- Newton Ductwork Services Ltd2007
All installation companies (insulation, lifts, shutters and similar) in Erith · All trades in Erith · Installers across the UK
Frequently asked questions
When are GCK Limited's accounts due?
GCK Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is GCK Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is GCK Limited still trading?
GCK 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 GCK Limited do?
GCK Limited is registered under Other construction installation (SIC 43290).
How old is GCK Limited?
GCK Limited was incorporated on 10 August 2020, 6 years ago.
What is the penalty if GCK 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 GCK 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.