- Companies
- Installers
- Poole
- GSM Construction Ltd
GSM Construction Ltd
- Company number
- 06655162
- Incorporated
- 24 Jul 200818 years trading
- Registered office
- 21 Church Road, Parkstone, Poole, Dorset, BH14 8UF
- Nature of business
- Other construction installation
GSM Construction Ltd is a 18-year-old private limited company registered in Poole, company number 06655162, one of 79 installation companies (insulation, lifts, shutters and similar) in Poole. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £12K (+128.1%) on the year before, to £21K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £28K against £11K owed within a year: 2.6 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 Jul 2025 | £21K | £17K | £28K | £11K | 2 |
| 31 Jul 2024 | £9,407 | £11K | £13K | £7,443 | 2 |
| 31 Jul 2023 | £11K | £11K | £13K | £6,996 | 2 |
| 31 Jul 2022 | £9,980 | £10K | £14K | £8,404 | 2 |
| 31 Jul 2021 | £11K | £19K | £23K | £17K | 1 |
| 31 Jul 2020 | £1,493 | £8,221 | £12K | £18K | 1 |
| 31 Jul 2019 | £16K | £13K | £18K | £13K | 2 |
| 31 Jul 2018 | £17K | £14K | £16K | £13K | 2 |
| 31 Jul 2017 | £23K | £12K | £18K | £13K | |
| 31 Jul 2016 | £18K | £13K | £22K | £9,258 |
Who runs and owns GSM Construction Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| G*** M*** | Director | Jul 2008 |
| L*** M*** | Director | Jul 2008 |
People with significant control (2)
Where GSM Construction Ltd is registered
The registered office is in Poole (BH14), in the Bournemouth, Christchurch and Poole local authority area, South West. Show BH14 8UF on a map.
Other trade companies in BH14
- La Inversion (Construction) LimitedBuilders
- Dalan Automotive LtdMotor traders
- South Pro Cleaning LtdCleaning companies
- Dorset Plumbing & Air Con LtdPlumbers and heating engineers
- Lifestyle Outdoor Living LtdInstallers
- 9295 Developments LimitedProperty developers
- Clear Vision Group LtdCleaning companies
- Chilli Marine LtdMachinery repair and installation
Shared registered office
91 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 GSM Construction 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 06655162
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 July 2008 (18 years ago)
- Registered office
- 21 Church Road, Parkstone, Poole, Dorset, BH14 8UF
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 24 July 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 Poole
Other active installation companies (insulation, lifts, shutters and similar) registered in Poole.
- Haven Renovation Ltd2025
- Home Profile South Ltd2025
- Insulation One Stop Limited2022
- Insulation Wise Limited2026
- Jam Kal Ltd2008
- JP Custom Interiors Ltd2012
- JP Displays Ltd1985
- JS Facades & Cleaning Contractors Ltd2025
All installation companies (insulation, lifts, shutters and similar) in Poole · All trades in Poole · Installers across the UK
Frequently asked questions
When are GSM Construction Ltd's accounts due?
GSM Construction Ltd's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is GSM Construction Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is GSM Construction Ltd still trading?
GSM Construction 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 GSM Construction Ltd do?
GSM Construction Ltd is registered under Other construction installation (SIC 43290).
How old is GSM Construction Ltd?
GSM Construction Ltd was incorporated on 24 July 2008, 18 years ago.
Who runs GSM Construction Ltd?
GSM Construction Ltd has 2 active directors, the longest-serving appointed in Jul 2008. Their names and service addresses are on the Companies House register.
Who owns GSM Construction Ltd?
2 people or companies have significant control of GSM Construction Ltd: an individual (owns 50% to 75% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if GSM Construction 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 GSM Construction 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.