- Companies
- Installers
- Birmingham
- GB Insulation Ltd
GB Insulation Ltd
- Company number
- 12693770
- Incorporated
- 24 Jun 20206 years trading
- Registered office
- Unit 4 Great Barr Business Park, Baltimore Road, Birmingham, West Midlands, B42 1DY
- Nature of business
- Other construction installation
GB Insulation Ltd is a 6-year-old private limited company registered in Birmingham, company number 12693770, one of 301 installation companies (insulation, lifts, shutters and similar) in Birmingham. 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 £5,947 (+12.3%) on the year before, to £54K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £186K against £132K owed within a year: 1.4 times cover.
- 1 employee 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £54K | £1,088 | £186K | £132K | 1 |
| 30 Jun 2024 | £48K | £367 | £180K | £132K | 1 |
| 30 Jun 2023 | £41K | £60K | £161K | £120K | 1 |
| 30 Jun 2022 | £27K | £17K | £80K | £53K | 1 |
| 30 Jun 2021 | £15K | £184K | £169K | 1 |
Where GB Insulation Ltd is registered
The registered office is in Birmingham (B42), in the Birmingham local authority area, West Midlands. Show B42 1DY on a map.
Other trade companies in B42
- Dosanjh Midlands LtdMachinery repair and installation
- Lucent Professional Services LtdCleaning companies
- Acutus Surface Care LtdCleaning companies
- The Duque Touch LtdCleaning companies
- 7 Star Building Construction LimitedBuilders
- Automotive P D LimitedMechanics and garages
- Kemite Auto LtdMotor traders
- Sim Enterprise LtdFinishing trades
What happens if GB 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 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
- 12693770
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 June 2020 (6 years ago)
- Registered office
- Unit 4 Great Barr Business Park, Baltimore Road, Birmingham, West Midlands, B42 1DY
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 23 June 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 Birmingham
Other active installation companies (insulation, lifts, shutters and similar) registered in Birmingham.
- Geis Logistic Services UK Ltd2026
- General Maintenance and Cleaning Services En Ltd2020
- Genesis Refurbishments Ltd2023
- Geniux Blinds Ltd2025
- Go Forward Interiors Company Ltd2007
- Golden Gate Housing Ltd2024
- Golden Keyz Ltd2023
- Goscar Construction & Maintenance Limited2026
All installation companies (insulation, lifts, shutters and similar) in Birmingham · All trades in Birmingham · Installers across the UK
Frequently asked questions
When are GB Insulation Ltd's accounts due?
GB Insulation Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is GB Insulation 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 GB Insulation Ltd still trading?
GB 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 GB Insulation Ltd do?
GB Insulation Ltd is registered under Other construction installation (SIC 43290).
How old is GB Insulation Ltd?
GB Insulation Ltd was incorporated on 24 June 2020, 6 years ago.
What is the penalty if GB 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 GB 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.