- Companies
- Finishing trades
- London
- GS Insulation Ltd
GS Insulation Ltd
- Company number
- 10630907
- Incorporated
- 21 Feb 20179 years trading
- Registered office
- 8 Stonechat Square, London, E6 5LQ
- Nature of business
- Other building completion and finishing
GS Insulation Ltd is a 9-year-old private limited company registered in London, company number 10630907, one of 3,947 building finishing companies in London. 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 £44K (+201.4%) on the year before, to £66K.
- Net assets rose in 6 of 8 year-on-year comparisons on record.
- Current assets of £199K against £63K owed within a year: 3.2 times cover.
- 2 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 | £66K | £199K | £63K | 2 | |
| 31 Mar 2025 | £22K | £55K | £33K | 2 | |
| 31 Mar 2024 | £166K | £187K | £23K | 1 | |
| 31 Mar 2023 | £132K | £142K | 1 | ||
| 31 Mar 2022 | £11K | £21K | £12K | 1 | |
| 31 Mar 2021 | £47K | £41K | 1 | ||
| 31 Mar 2020 | £43K | £26K | £0 | 1 | |
| 31 Mar 2019 | £17K | £51K | £34K | ||
| 31 Mar 2018 | £765 | £15K | £16K |
Where GS Insulation Ltd is registered
The registered office is in London (E6), in the Newham local authority area, London. Show E6 5LQ on a map.
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What happens if GS Insulation 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 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
- 10630907
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 February 2017 (9 years ago)
- Registered office
- 8 Stonechat Square, London, E6 5LQ
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 21 October 2025
- Previous names
- G & Z Insulation Ltd (until 23 Jun 2017)
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- GS Solidbuild Ltd2026
- GT6 Ltd2024
- Guard Fire and Safety Ltd2025
- Guebail Services Limited2025
- Guga Construction Ltd2014
- Guildmore Planned Works Limited2025
- Gul Quality Suppliers Ltd2021
- Guper Ltd2019
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are GS Insulation Ltd's accounts due?
GS Insulation Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is GS Insulation Ltd'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 GS Insulation Ltd still trading?
GS Insulation 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 GS Insulation Ltd do?
GS Insulation Ltd is registered under Other building completion and finishing (SIC 43390).
How old is GS Insulation Ltd?
GS Insulation Ltd was incorporated on 21 February 2017, 9 years ago.
What is the penalty if GS Insulation 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 GS Insulation 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.